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MARCH 2021

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                             CLAMP-ON ENERGY/
                             HEAT METERING    12

INSIDE THIS ISSUE:

             16                    22                               31
             The                   A hidden                         Four things
             Wiring Regs:          benefit of                       to consider
             Do Your               heating                          when it
             Installations         control                          comes to
             Really                during Covid                     your energy
             Comply?                                                contracts
12 CLAMP-ON ENERGY/ HEAT METERING - Energy Manager ...
FRONT COVER STORY:

                                                                                                                                                                                                                Clamp-on Energy/
                                                                                                                                                                                                                Heat Metering

                                                                                                                                                                                                                                  See page 12

                                                                                                        We choose                                                           MARCH 2021                                               www.flexim.co.uk

                                                                                                        to go to the                                                         PUBLISHER: Ralph Scrivens

                                                                                                                                                                                                                INSIDE
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                                                                                                                                                                                                                            ENERGY MANAGER MAGAZINE • MARCH 2021   3
12 CLAMP-ON ENERGY/ HEAT METERING - Energy Manager ...
NEWS

    EENSULATE PROJECT
    “Development
      of innovative
      lightweight and
      highly insulating
      energy efficient
      components
      and associated
      enabling materials
      for cost-effective
      retrofitting and
      new construction
      of curtain wall
      facades.”

    T
               he EENSULATE project
               is a research project
               funded by the European            Figure 1: EENSULATE module
               Commission under the Horizon      installation at the Polish
               2020 programme. It gathers        demonstration site

    13 partners from 8 different European
    countries (AGC Glass Europe, SAES            EENSULATE
    Getters, Focchi, Universita Politecnica      PRODUCTS
    Delle Marche, Selena, Bergamo
                                                       The EENSULATE project
    Tecnologie, Gmina Miejska Dzierzoniow,
                                                 develops a curtain wall
    University College London, Ulster
                                                 module that consists of
    University, Evonik, UNStudio, and Fenix
                                                 two main parts. The first
    TNT). The consortium is led by RINA
                                                 one is highly insulating and
    Consulting. The project started in August
                                                 environmentally friendly
    2016 and will be concluded by May
                                                 spray foam based on
    2021 with total duration of 58 months.
                                                 mono-component (OCF)
         EENSULATE project aims to
                                                 and bi-component (TCF)
    develop an innovative lightweight (35
                                                 elements. It allows for the cost-
    % weight reduction compared to the
                                                 effective automated manufacturing
    currently best performing modules),
                                                 and insulation of the opaque
    highly insulating energy efficient
                                                 components. The curtain walls
    components. Simultaneously, it also
                                                 also enable significant reduction
    develops associated enabling materials
                                                 of thermal bridges during the
    for cost-effective retrofitting and new
                                                 installation process. The second
    construction of curtain wall façades.
                                                 product is a lightweight and thin
    EENSULATE represents an ambitious
                                                 double pane Vacuum Insulated
    project, which aims to introduce a novel
                                                 Glass (VIG) with innovative
    unitized curtain wall system capable                                                    one building is located in Pesaro, Italy
                                                 sealant and getter technologies. The
    of meeting the market demand. It is                                                     (Public library). The performance of the
                                                 VIG is used for the insulation of the
    expected to be an affordable (28 %                                                      installed EENSULATE solutions will be
                                                 transparent component of curtain walls;
    reduction of total refurbishment costs),                                                assessed and compared to the State
                                                 it is manufactured through an innovative
    high performance prefabricated façade                                                   of the art technologies already existing
                                                 low-temperature process, enabling
    retrofitting solution with reduced                                                      on the market (Triple Glazed Units).
                                                 the use of fully toughened glass.
    weight and thickness. The objective of                                                      This project has received funding
    the project is to bring existing curtain     DEMONSTRATION                              from European Union’s Horizon H2020
    wall buildings to “nearly zero energy”                                                  research and innovation programme
    standards and reducing energy bills by           The EENSULATE products are             under grant agreement No. 723868.
    at least 20 % while complying with the       being implemented at three different          Project ID: 723868
    structural limits of the original building   demonstration sites. Two buildings            Website: www.eensulate.eu
    structure and national building codes.       are located in Dzierżoniów, Poland            Project coordinator: Paola Robello
                                                 (School Building and Museum) and              Contact email: paola.robello@rina.org

4   ENERGY MANAGER MAGAZINE • MARCH 2021
12 CLAMP-ON ENERGY/ HEAT METERING - Energy Manager ...
NEWS                                                                                                                                                                                          NEWS
                                                                                                                                                                                                                                 PORTAFLOW PF333/PF222

NATURAL REFRIGERANTS:                                                                                                                              SSE TEAMS UP                                                                NEW SIMPLE CLAMP ON, NON
HOW TO ACHIEVE EFFICIENT SYSTEMS?                                                                                                                  WITH GOLDSMITHS,                                                            INVASIVE FLOW & ENERGY
                                                                                                                                                                                                                               MEASUREMENT FROM MICRONICS
                                                                                                                                                   UNIVERSITY OF
A
       new white paper examines                  as high pressures with R-744 (CO2) cycles         the unique characteristics

                                                                                                                                                   LONDON TO SLASH
       the theory behind natural                 and the flammability of hydrocarbons.             of natural refrigerants
                                                                                                                                                                                                                                    PF333
       refrigerants and the technologies            “The aim of the ‘Natural Refrigerants’ white   and in compliance with                                                                                                             now
available to optimise energy savings             paper is to systematically bring together         regulations, without sacrificing efficiency”.

                                                                                                                                                   CARBON EMISSIONS
                                                                                                                                                                                                                                   available
   Natural refrigerants are considered a         the results of years of study and research           The ‘Natural Refrigerants’ white paper is                                                                                    as energy
                                                                                                                                                                                                                                     meter
sustainable solution as they have a minimal      into natural refrigerants”, commented             divided into five parts. The first provides a
effect on the environment, with technologies     Miriam Solana, HVAC/R Technical Knowledge         summary of the characteristics of natural
that have evolved over recent years to           Specialist. “Our intention with this document     refrigerants. The second examines the
optimise their use. In several HVAC/R            is to contribute to making available as much      evolution of cycles with natural refrigerants
applications, natural refrigerants are now       theoretical information as possible, and          and the possibilities that are currently
the preferred option in new equipment,           providing an overview of the technologies         available. The last three sections describe
especially in countries that have started        for optimising energy savings and creating        examples of modulating technologies
phasing out HFCs. Nonetheless, this              systems with the lowest total CO2 emissions.      and high-efficiency solutions. The goal is
transition requires efficient systems that       At CAREL we believe in the importance of          to have an overview of the technologies
can also reduce indirect CO2 emissions.          supporting broad use of these refrigerants,       available to design high-efficiency
The use of the highest-performance               which represent a concrete and feasible           systems using natural refrigerants.                                                                                        • Ultrasonic, cross-correlation flow
                                                                                                                                                                                                                                measurement
technology is essential for combining natural    response to environmental sustainability.            The ‘Natural Refrigerants’ white
                                                                                                                                                                                                                              • Reynolds number correction
refrigerants and high efficiency. There are      We need to continue to study and carry            paper is available free-of-charge at
                                                                                                                                                                                                                              • Easy to install
several variables to consider: the unique        out research: the goal of innovation is to        this link: https://www.carel.com/-                                                                                         • Simple to follow set-up menu
characteristics of natural refrigerants, such    achieve systems that are compatible with          natural-refrigerants-white-paper                                                                                           • Clamp-on flow and temperature sensors

                                                                                                                                                   E
                                                                                                                                                         nergy solutions provider, SSE Enterprise has signed a joint

    GOVERNMENT AND INDUSTRY BACK                                                                                                                         development agreement with Goldsmiths, University of London
                                                                                                                                                         to design and deliver a low carbon campus infrastructure

    NUCLEAR FOR GREEN HYDROGEN FUTURE                                                                                                              in pursuit of the university’s ambitious net zero targets.
                                                                                                                                                      The project will see SSE Enterprise’s distributed energy
                                                                                                                                                   division look to consolidate all of Goldsmiths’ significant energy
    Government-Industry                            production near industrial clusters.                  and grants to zero-carbon                 consuming buildings onto a centralised campus-wide heat and
                                                      Advanced Modular Reactors (AMRs)                   generators of all kinds, including        power network. It is estimated that the first phase of the project
    body endorses all                              under development offer one of the                    nuclear, to install electrolysers         will save the institution an average of 1,375 tonnes of CO2 per                 The NEW Portaflow PF333/PF222
    reactor technologies                           most promising innovations for green                • Ambitious carbon pricing to make          year - the equivalent annual energy use of 144 homes.                           range brings simplicity to the non-
                                                   hydrogen production, since they will create           green hydrogen more competitive
    to create emissions-                           temperatures high enough to split water             • Five-year R&D AMR funding
                                                                                                                                                      The project has a core focus to reduce the carbon emissions
                                                                                                                                                   associated with heat, as the university pledges to become completely
                                                                                                                                                                                                                                   invasive measurement of liquid flow
                                                                                                                                                                                                                                   and is now available with an energy
    free hydrogen                                  without diverting electricity. The ability            settlements to support the                carbon neutral by 2025. The system will heat the buildings using a
                                                                                                                                                                                                                                   meter function for the PF333. Results

    N
                                                   to generate both power and hydrogen                   government’s target of a                  low-carbon heat pump, removing the majority of gas consumption
            uclear power could produce one-        would cut costs further, add flexibility,             demonstrator by the early 2030s           on site and saving up to 7,850 MWh of gas usage per year.
                                                                                                                                                                                                                                   can be achieved within minutes of
            third of the UK’s clean hydrogen       and allow co-location of reactors with              • Inclusion of nuclear-produced                By integrating all power onto a single private network, the                  opening the case.
            needs by 2050, according to            industry to aid further decarbonisation.              hydrogen in the Net Zero Hydrogen         university will be able to use a much higher proportion of any on-
    the Hydrogen Roadmap agreed by the                                                                                                                                                                                             Compact, rugged and reliable,
                                                   The UK Government has targeted an                     Production Fund and the Renewable         site renewables, without the risk of exporting that electricity onto
    Nuclear Industry Council (NIC). The            AMR demonstrator by the early 2030s.                  Fuels Transport Obligation                the grid. The new power system will expand on the university’s
                                                                                                                                                                                                                                   designed to provide sustained
    NIC, co-chaired by the Minister for               The roadmap estimates that 12-13                 • Agreement of a new financing model        existing solar resources, installing a further 400kW of solar PV                performance in: Process fluid
    Business, Energy and Clean Growth and          GW of nuclear reactors of all types                   to cut the cost of capital, for new       into the new private network, which will then be used to supply                 monitoring and Energy Management
    the Chairman of the Nuclear Industry           could use electrolysis, steam electrolysis            nuclear projects, and thus the cost of    the heat pump, further reducing carbon emissions on site.                       including Water, Glycol, DI, Diesel
    Association, sets strategic priorities for     using waste heat and thermochemical                   electricity for hydrogen production          Everton Williams, Deputy Director Estates at Goldsmiths, said:
    government-industry collaboration to                                                                                                                                                                                           and Fuel Oils. For System audits,
                                                   water splitting to produce 75 TWh                   Commenting on the report launch,            “We are excited to begin this journey with SSE Enterprise as they
    promote nuclear power in the UK.               of green hydrogen by 2050.                       Tom Greatrex, Chief Executive of the                                                                                           Pump verification, Boiler testing,
                                                                                                                                                   support us in our goals to deliver our PLAN25 strategy and achieve a
       The NIC roadmap outlines how large-            The Climate Change Committee                  Nuclear Industry Association, said:            completely carbon neutral campus by 2025. We have already made                  Leak detection and many more...
    scale and small modular reactors (SMRs)        estimates that the UK could need up                 “Nuclear power should be right at the       significant strides in this area with our investment in solar PV panels,
    can produce both the power and the             to 225 TWh of hydrogen per year to hit           heart of green hydrogen production,            but this new partnership will see us fully embracing a ‘whole systems’
    heat necessary to produce emissions-           its net zero target. Rapid deployment            alongside renewable technology. Nuclear        approach by adopting and integrating other low-carbon technologies.”
    free hydrogen, or “green hydrogen”.            of clean alternatives will be required, as       reactors offer the innovative solutions           SSE Enterprise have already designed a concept for the system
    Nuclear stations also provide a constant,      the vast majority of the UK’s hydrogen is        we need to decarbonise sectors beyond          and are currently supporting Gold-smiths with applications
    reliable supply of power that allows           currently produced using fossil fuels.           electricity as part of a robust net zero       for grant funding to enable the construction of the network
    electrolysers to operate more efficiently,        The most common method, steam                 mix, starting today and going into the         and potentially the long-term operation of the system over a
    cutting production costs. Existing             methane reformation, is low cost, but            future. We are pleased the government          25-year period. The 1MWth heat pump set to be installed will
    large-scale reactors could produce             emits 10 kilograms of carbon dioxide             has recognised that potential, and look        supply 6,500 MWh of low carbon heat to the site every year.
    green hydrogen today at scale through          for every one kilogram of hydrogen.              forward to working with them and other            SSE has been confirmed as a major partner for this year’s COP26                  For fur ther information call us on
    electrolysis, as could the next generation
    of gigawatt-scale reactors. SMRs, the
                                                      Since the main obstacle to green
                                                   hydrogen is cost, the report identifies
                                                                                                    partners to create a strong framework
                                                                                                    for green hydrogen production.”
                                                                                                                                                   climate change conference in Glasgow in November. SSE Group
                                                                                                                                                   aims to deliver a £7.5bn low carbon investment programme,
                                                                                                                                                                                                                                    + 44 ( 0 )1628 810456
    first unit of which could be deployed          immediate steps to encourage                        For further information, please contact:    developing some of the assets and infrastructure required for                      or email sales@micronicsltd.co.uk
    within the next ten years, would unlock        nuclear-hydrogen development:                    Lincoln.hill@niauk.org 44 (0)7554 701533
    further possibilities for green hydrogen          • Funding for electrolyser research
                                                                                                                                                   the UK to reach its target of net zero emissions by 2050.                            www.micronicsflowmeters.com
                                                                                                                                                      https://www.sseenterprise.co.uk/

6       ENERGY MANAGER MAGAZINE • MARCH 2021                                                                                                                                                                                  ENERGY MANAGER MAGAZINE • MARCH 2021         7
12 CLAMP-ON ENERGY/ HEAT METERING - Energy Manager ...
NEWS                                                                                                                                                                            Project Net Zero
SURGE IN DEMAND FOR ETL’S NET ZERO                                                                                                                                      Combatting climate change in the public sector with
CARBON DELIVERY FRAMEWORK RESULTS                                                                                                                                            net zero tools, insights, strategy and partners
IN RACE TO ACCESS FUNDING
E
       TL’s new Net Zero Carbon delivery               technologies, including: Solar PV and            The Framework also assists public
       procurement framework is now live               Solar thermal technology, Electric            sector organisations to meet the criteria
       and off to an impressive start with a           Vehicle charging points, air and ground       that is necessary to meet the terms for
surge in demand and supply. The Framework              source heat pump technology, power            grant funding from the Department for
                                                                                                                                                           Free net zero calculator, and guide, aims to
                                                                                                                                                     
supports public sector bodies in their bid             storage and voltage optimisation,             Business, Energy, and Industrial Strategy
to reduce carbon emissions in line with                low carbon heat networks and                  (BEIS). This grant fund, now closed for
legislative and sector led reduction targets.          wind and biomass technology.                  applications, has funded hundreds of                  help inform your organisation’s net zero journey
   Alexandra Hammond, Sustainability                3. Metering: metering and submetering of         public sector organisations to deliver
Director at ETL comments: “It’s now a case             electricity, gas, heat, water, air, steam,    energy efficiency and heat decarbonisation
                                                                                                                                                           The insights section offers tips and analysis
                                                                                                                                                    
of first in, best dressed. Uptake has been             and onsite power generation. Intelligent      projects, and the Net Zero Carbon Delivery
fast within the public sector and suppliers
have been keen to back the framework.
                                                       building metering can also be included.
                                                    4. Building management systems:
                                                                                                     Framework provides a mechanism for
                                                                                                     a quick and robust route to market.
                                                                                                                                                           on a range of decarbonisation topics
   “Its popularity sends a clear message that          the design, supply, install, service             Alexandra Hammond adds; “There are
public sector organisations are taking their           and maintenance of BMS.                       several alternative and flexible sources of
                                                                                                                                                           With an implementation area that aligns your needs with a
obligation to reach Net Zero seriously ahead
of 2050. The Framework is free to access for
the public sector, risk minimising and easy to
                                                    Available nationwide, the Framework
                                                 provides a model for public sector bodies
                                                 to follow when looking to implement low/
                                                                                                     funding available, such as loans offered by
                                                                                                     Salix. ETL can support with applications and
                                                                                                     support our clients throughout the process
                                                                                                                                                          business solutions partner to meet your net zero goals
access for all organisations, so those looking   zero carbon technologies. Organisations             of funding, procurement and delivery.”
for a speedy and compliant route to market       looking to form a robust partnership with              ETL is an industry-leader in providing
for low or zero carbon technology should         a delivery partner to get projects over the         sustainability advice and procurement
                                                                                                                                                           Visit
                                                                                                                                                           www.projectnetzero.co.uk
really take advantage of this opportunity.”      line will find it invaluable as it provides a one   support. In 2018/19, ETL supported over
   The following lots are available to           stop solution with a list of pre-approved           25 Trusts with NHS Energy Efficiency
access through the Framework:                    suppliers, ready to go terms and conditions         Fund (NEEF) applications and has recently
   1. All-encompassing technologies: A           plus project and specification support.             supported 12 public sector organisations
      one-stop approach enabling clients            Focusing on technology, installation and         to successfully access grant funding
      to procure holistic low/zero carbon        delivery, it has been particularly popular          through BEIS. For any other queries,
      technology solutions. All technologies     with metering, lighting and integrated              please contact ETL’s Sustainability
      are available through this lot.            technology projects. In addition, it is open        Team at sustainability@etl.co.uk
   2. Heating and renewables: Access to          to private sector organisations looking
      a range of heating and/or renewable        to source pre-approved suppliers.

    LSBU estates team wins CIBSE
    Building Performance award
L
         ondon South Bank University’s (LSBU)
         Estates and Academic Environment
         Management team has won a
    prestigious CIBSE Building Performance
    award for efficient facilities management.
       The team won their award for
    improving overall energy efficiency and
    sustainability across the University’s
    estate. They employed energy efficient
    technologies to reduce overall electric,
    gas and water consumption.
       Chris Barnes, Maintenance & Energy
    Manager for Estates & Academic
    Environment at LSBU, said: “LSBU’s
    Estates team is very proud to have won
    this CIBSE award for efficient facilities
    management across the University’s
    campus. It’s recognition of the
                                                    emissions reduction of 85% since 2010.”           projects that demonstrate engineering
    commitment we’ve given to upgrading
                                                       The awards were presented at a virtual         excellence in the built environment.
    our campus facilities and improving the
    performance of buildings, while reducing
                                                    ceremony on Thursday 25 February.
                                                    Find out more at: www.CIBSE.org/BPA
                                                                                                      Fifty-five international projects were
                                                                                                      shortlisted for 14 awards, demonstrating
                                                                                                                                                    Working with NHS, local
    our impact on the environment.
       “LSBU’s commitment to renewable
                                                       The CIBSE Building Performance                 global achievements in exceptional            authorities, housing groups,
    energy sources has resulted in a carbon
                                                    Awards 2021, now in their 14th year,
                                                    recognise the people, products and
                                                                                                      building performance within engineering.
                                                                                                                                                    national government, education
                                                                                                                                                    and institutions since 1997                                  A platform for change
8         ENERGY MANAGER MAGAZINE • MARCH 2021
12 CLAMP-ON ENERGY/ HEAT METERING - Energy Manager ...
OPINION                                                                                                                                                                                                                                                  OPINION

A HEARTENING YEAR FOR THOSE                                                                                                                                 GETTING TO CLIMATE ACTION
TACKLING THE CLIMATE CRISIS                                                                                                                                 How can we cut through the noise around climate change?
                                                                                                                                                            Manish Jain, Co-Founder of Complexity University

                                                                                                                                                            C
Vaughan Lindsay, CEO                                                          targets, many firms
                                                                              have admitted that
                                                                                                        Taskforce can help to unlock new demand
                                                                                                        and finance for project development in 2021,
                                                                                                                                                                        limate change has been a
                                                                                                                                                                        topic of discussion in our
                                                                                                                                                                                                            commitments under the Agreement do
                                                                                                                                                                                                            not get us to safety. There are a range of
                                                                                                                                                                                                                                                            certainty what path
                                                                                                                                                                                                                                                            the pigeon will take or how it will behave. The
of ClimateCare asks:                                                          they are waiting to get   helping us deliver more emission reductions                     society for decades, but            obstacles which prevent us from making          path the pigeon follows is emergent. Tackling
                                                                              this right before they    from high quality projects. As always, the
How does one even                                                             take action to reduce     devil will be in the detail and more will play
                                                                                                                                                                        now that information can
                                                                                                                                                                        now be disseminated with
                                                                                                                                                                                                            enough progress to avert catastrophic
                                                                                                                                                                                                            environmental and ecological damage.
                                                                                                                                                                                                                                                            complex challenges requires a different set
                                                                                                                                                                                                                                                            of skills to tackling complex challenges.
begin to talk about the                                                       and compensate for
                                                                              their emissions. This
                                                                                                        out on this as we move through the year.
                                                                                                        Certainly though, as this and other interest
                                                                                                                                                            a tap of a screen, the discussion and
                                                                                                                                                            contradicting opinions around the topic
                                                                                                                                                                                                                  Numerous climate change
                                                                                                                                                                                                            conventions, conferences and talks
                                                                                                                                                                                                                                                                 Our world is becoming increasingly complex.
                                                                                                                                                                                                                                                            The amount of data we are producing is multiplying
year that was 2020?                                                           attitude has been a       in the voluntary carbon market develops,            can quickly become overwhelming.                are held around the world each                  at a far greater rate than we can process and

I
                                                                              concern for us over       our primary concern and focus remains on                Fifty percent of all historic emissions     year. Unfortunately, the talk is not            understand it. We cannot know everything about a
   t was a year full of uncertainly and one                                   the past 12 months.       continuing to scale our activity to finance,        have occurred since 1992 – when                 resulting in enough action to get               situation or challenge, and as soon as we think we
   which presented challenges for so many          Because, whilst these plans and long-term            manage and develop robust and effective             the world came together to form the             us to these targets at the pace and             do – it has all changed again. To help us navigate
   people. Not only has the pandemic               targets are truly commendable, they do little        carbon reduction projects that both cut             UNFCCC at the Rio Earth Summit. Climate         scale that science dictates. It seems           an increasingly complex world, we need leaders
   affected our health and personal lives,         for the environmental damage that is being           carbon and improve lives. This, of course,          campaigners and scientists have for             we know what needs to be done, but              who understand the nature of complex challenges,
   but it has also fundamentally challenged        done right now; today and tomorrow. In fact,         has been a major focus throughout 2020,             years voiced their concerns and issued          struggle when it comes to building and          and recognise that we need to try a different
our political, social, and economic norms          there is a risk of action hiding behind plans.       despite the pandemic, and will continue to          warnings about approaching tipping              executing an effective approach.                approach than the ones we are familiar with taking.
too. And indeed, it continues to do so too              Many in the industry will be aware that         be this year as we move through 2021 too.           points as deadlines for action fly by.                Given that our current efforts are             With this in mind, new organisations such as
as we remain in lockdown and continue              we need to more than halve emissions by                                                                  Meanwhile, a vocal minority of politicians,     falling short, the need for new strategic       Complexity University are working to cut through
to see rates of infection increasing.              2030. This is equivalent to reducing the             TURNING PLANS                                       scientists and industry leaders denounce        responses is now clear. The complexity of       the noise that has built up around challenges
    I think most notably though, the impact        current emissions of China, India, the EU            INTO ACTION                                         the threat of climate change altogether.        a challenge like the climate crisis naturally   like climate change. We are bypassing endless
that the pandemic has had on how many of us        and the US combined. This is, quite frankly,               As we look ahead in this year, we should          With all the noise and contradictory        leads to extended debate and a scattered        debate about what needs to be done, and taking
think about tackling the big issues like climate   a mammoth task. Our advice therefore                 also see more of these ambitious plans and          opinions circulating around the issue of        approach to developing solutions. While         a hands on, practice-based approach to doing it.
change has been huge. It’s because of this         to clients over this past year has been to           statements put into practice, as companies          climate change, it is hard to understand        it is of course important to engage                  Teams and individuals are increasingly
– and despite its challenges – that 2020 was       consider driving actions simultaneously and          continue to turn their plans (and pledges)          how to approach the challenge. So               in thought-provoking discussion to              recognising the need to develop an understanding
actually quite an encouraging year for those       at pace, and then modifying and adjusting            into action. Ultimately the environment for         where do we truly stand in the fight            entertain different ways of tackling            of the nature of complexity and complex
of us involved in fighting the climate crisis.     moving forward. In simple terms, there               ambitious action has never been better, be          against climate change – and can                such complex issues, it is too easy to          challenges, and to practice new approaches that
                                                   really hasn’t been time, and indeed isn’t            it via the UK Government’s 10-point green           anything really be done about it?               get sucked into paralysis by analysis.          are fit for the purpose of addressing them.
INCREASING AMBITION                                time any longer, to take things one step at          plan or the recommendation to help scale the            Fortunately, the answer is yes. Despite           What we know for sure is that the              As a strategic response to the climate
FROM CORPORATES AND                                a time. We need to take action right away.           voluntary carbon markets and this certainly         continuing debate climate scientists            way we have been doing it so far has            crisis, we cannot simply focus on individual
GOVERNMENTS ALIKE                                                                                       provides an exciting outlook for next year.         have long been clear about what needs           not worked. Emissions continue to rise,         behaviour change, but more so on collective
                                                   VALIDATION AND                                             This year will also bring about the           to happen if we want to avoid climate           meaning we have a failure rate of 100% at       action. We see the real innovation as being the
    For instance, 2020 saw record levels           CONSENSUS                                            postponed COP26, which provides a real              change. With emissions rising steadily          tackling the climate crisis with our current    team, and as a result, it is essential that more
in corporate ambition on climate change,
                                                       Saying that though, there is a great             opportunity to clarify how to implement the         and showing no sign of peaking, the             approach. A classic error continues to          teams within companies and organisations
as companies looked to ‘build back
                                                   deal of hope as we move through 2021.                Paris agreement and bolster international           scientific community is now telling us          be made when attempting to address              are practiced in tackling complex problems,
better’ and place purpose at the heart
                                                   Not least because we are seeing more                 carbon markets. The US re-joining the Paris         that pathways to limit global warming are       the climate crisis, as governments,             learning to ‘fail fast’, develop dynamic
of their business. Not only this, but we
                                                   and more experienced professionals and               agreement adds further weight to this and           getting significantly harder but are still      organisations and companies are framing         strategies, and successfully execute them.
also witnessed corporates redoubling
                                                   organisations (such as WWF, SBTi, Oxford             hopefully we can help forge true international      possible. If we hope to stay within the         the issue as a simple technical problem              Complexity University’s approach to helping
their efforts to tackle the climate crisis as
                                                   University, UN and the Taskforce) all agreeing       cooperation moving forward too. These               carbon budget, we need a net reduction          of reducing emissions, as opposed               teams rapidly develop a capacity for tackling
well and saw many big brands sign up to
                                                   with the rationale that we cannot reach Net          will of course be great accelerators for the        of emissions of at least 1 billion tonnes       to a complex adaptive challenge.                complex problems is to bring together teams and
the UN Race to Zero (in fact the figures
                                                   Zero without including external emission             industry overall, however as previously             (one gigatonne) per year for the next 30 to           When we come across a challenge or        put them straight to work on prototyping and
doubled in 2020 which was fantastic).
                                                   reductions and offsetting emissions. This            mentioned, the key here is for corporates           50 years. More critically, if emissions don’t   crisis, often our first response is to call a   delivering emissions reduction interventions in
    Global politics also started to align
                                                   acknowledgement by experts across the                to act now rather than waiting on policy            peak and decline within the next decade,        meeting and make a plan. We talk about          their local area. In a matter of weeks, companies
too. You may have seen that the US
                                                   board of the vital role of offsetting, is of         decisions because time is of the essence.           we will overshoot safe targets, heading         what we will do, we hire other people to        that embark on a Complexity University course are
made commitments to re-join the Paris
                                                   course, just the beginning and we are likely                                                             for 3 degree terrain, risking the loss of       talk with us about what we should do, and       making tangible impact, getting live feedback on
Agreement, China made a commitment
to Net Zero and the UK government also             to see this filter down more into policy too.        INCREASING ACTION                                   many hundreds of millions of people. In         we spend time and money we can’t afford         their approach and learning how to do better by
                                                                                                                                                            reality we have months and not years.           planning what we will do. Then we try to        problem solving on the job, whilst simultaneously
been pushing mandatory reporting of the                                                                     We believe that the issue of climate
business impacts of climate change by
                                                   THE TASKFORCE                                        change is now central to nearly all forward-
                                                                                                                                                                Presently, the Paris Agreement              do it, and often it fails or certainly does     receiving valuable guidance and insight from
                                                                                                                                                            represents our best strategy to curb            not turn out as our hefty report suggests       experts with decades of experience in the field of
2025. Even more recently, and towards                  Perhaps another key event of 2020, was           thinking corporates and this year will
                                                                                                                                                            emissions and limit global warming.             it will. The worst part comes when we are       tackling complex challenges like the climate crisis.
the back end of 2020, the UK also                  the Taskforce on scaling the voluntary carbon        present one of the most encouraging
                                                                                                                                                            However, the current level of political         so invested in this plan that we refuse to           By getting employees and team leaders out
increased its ambition to cut emissions            markets launching its consultation paper in          environments for them to act on this.
                                                                                                                                                                                                            acknowledge its shortcomings or failure,        from behind the desk and into the field, these
by 68% by 2030 based on 1990 levels.               November 2020. This paper aimed to identify          Never before has it been so vital to ensure
                                                                                                                                                                                                            and continue to plough resources into           teams quickly become adept at ‘failing fast’ to reach
                                                   ways to scale the voluntary carbon markets by        that the role of the voluntary carbon
ACTION HIDING                                      up to 160 times to help tackle climate change.       market delivers real additional emission
                                                                                                                                                                                                            an ineffective solution to the problem.         a more effective solution with minimal resource.
                                                                                                                                                                                                                  This kind of strategic planning           They learn to prototype and iterate - testing out
BEHIND PLANS                                       It was great to see the experts agreeing with        reductions on the ground and at scale.
                                                                                                                                                                                                            approach arose as a way of tackling             multiple responses at pace and processing live
                                                   our long-held rationale and acknowledging                With this in mind, let’s make 2021 the
      And certainly, for us here at ClimateCare,                                                                                                                                                            technical challenges, like building             feedback from the field. When it comes to taking
                                                   that taking responsibility for today’s emissions     year of increasing action to build on last
it’s been ever so encouraging to see an ever-                                                                                                                                                               roads. It’s a little like throwing a            effective strategic action in the face of a challenge
                                                   through carbon offsetting is essential if            year’s increasing ambition. Because the
increasing number of corporates committing                                                                                                                                                                  ball, we can predict, the arc it will           like the climate crisis, developing the capacities
                                                   we are to meet our Net Zero targets and              climate will not respond to targets, it will only
to achieve Net Zero status. Saying that,                                                                                                                                                                    take and how it will behave.                    within our teams to navigate complexity is key
                                                   prevent catastrophic climate change.                 respond to carbon cuts. It is action that really
whilst it is great to see firms working hard to                                                                                                                                                                   Contrast this with throwing a live        to success of any initiative – before we even out
                                                       As a project developer ourselves here at         counts this year. www.climatecare.org
measure their footprint and set reduction                                                                                                                                                                   pigeon. We cannot know with any                 pen to paper. https://complexity.university/
                                                   ClimateCare, we will be keen to see how the

  10        ENERGY MANAGER MAGAZINE • MARCH 2021                                                                                                                                                                                             ENERGY MANAGER MAGAZINE • MARCH 2021                            11
12 CLAMP-ON ENERGY/ HEAT METERING - Energy Manager ...
NEWS STORY
               COVER
                                                                                                                                                       Don’t waste your energy.
 DON’T WASTE YOUR ENERGY.
 MEASURE IT!                                                                                                                                           Measure it.
 O
                ptimization of thermal              Thermal energy use is one of the
                energy from heat delivery      highest building operating costs and
                between central heating        there is a need to manage facilities more
                plants to real estate end      effectively to control and reduce energy
                users or heat transfer flows   consumption. Metering allows managers to
 in industrial processes: controlling and      know how their buildings are performing
 balancing the flow of energy is of utmost     and what is running efficiently. If we look at
 importance for cost conscious users.          a typical air-conditioned prestige head-
      But you can’t identify or manage         office or administrative centre 4,000m² to
 energy efficiency if you don’t effectively    20,000m², as much as 50% of the energy
 measure energy usage in the first place.      consumption could be accountable from                 Fig. 3. Clamp-on metering at a major UK airport
      To record thermal energy flows,          HVAC & Computer room cooling alone.
                                                                                                       • Avoidance of excessive water flows
 which are based on the transport of
                                                                                                       • Reduction in compressed air
 liquids or gases in pipelines, the ideal
                                                                                                         operating pressures and leaks
 measurement solution is: FLUXUS®.
                                                                                                       • Reduction in steam losses, e.g. via
 The clamp-on ultrasonic systems record
                                                                                                         blocked open steam traps, etc
 thermal energy flows from outside the
                                                                                                        FLEXIM’s FLUXUS Energy Meters
 pipe, without the pipe having to be
                                                                                                     provide the following key benefits:
 tapped or modified in any way. Portable
                                                                                                       • Ultrasonic measurement of:
 FLUXUS® meters have long been part
                                                                                                         ○    Thermal energy
 of the measurement tool kit of energy
                                               Fig. 1. Typical energy split of 4,000m² to 20,000m²       ○    Compressed air
 managers and energy consultants, but our
                                               prestige head-office or administrative centre             ○    Steam flow metering up to 400ºC
 fixed meters also offer quickly installed
                                                                                                       • Clamp-on instant feedback
 solutions at optimum cost – without any           So, even small gains in efficient use of
                                                                                                         measurement for fine tuning
 process outages for commissioning.            energy can have significant positive effects
                                                                                                         energy efficiency
      The introduction of an energy            on both annual energy bills and carbon
                                                                                                       • Zero outages for installation
 management system according to ISO            reduction. The opportunity for significant
                                                                                                       • Easy and quick installation –no leaks,
 50001, and accompanying schemes               energy reduction exists at all major
                                                                                                         no pressure drop, no contamination
 such as ESOS, the Carbon Reporting            manufacturing, entertainment, municipal

                                                                                                                                                       With FLUXUS®.
                                                                                                       • Calibrated, certified and traceable high-
 scheme, Carbon Net Zero 2030, 2050, etc.,     or administrative centres, such as:
                                                                                                         accuracy measurement with zero drift
 increases the demand for permanently             • Local Government Offices
                                                                                                       • Extremely high turndown range,
 available and comparable data. Non-              • Major corporate offices
                                                                                                         captures even the lowest energy flows
 invasive measurement with FLUXUS®                  and Data Centres
                                                                                                       • Fixed installations or portable
 provides easy and permanent recording            • Hospitals & University Campuses
 of consumption. Its ultra-wide measuring         • Major manufacturing sites
                                                                                                         survey instruments
                                                                                                                                                        Non-invasive ultrasonic measurement           Certified traceable accuracy
                                                                                                       • Practically maintenance-free – no
 turndown is a particular advantage,              • Airport Terminal Buildings
                                                                                                         parts in contact with flowing medium            of thermal energy, compressed air and
 revealing energy consumption at even the         • Entertainment stadia and Expo halls
                                                                                                                                                         steam flow rates                              Extremely high turndown range, captures
 lowest rates, unlike many conventional
 inline and mechanical meters. As a result,
                                                  • Warehouses and significant
                                                    supermarkets / wholesalers
                                                                                                                                                                                                        even the lowest flow rates
 even the lowest consumption is reliably          • Refrigeration plants – clamp-
                                                                                                                                                        Easy and exact measurement from the
 and accurately recorded. Since there               on ammonia gas metering                                                                              outside of the pipe – no interruption of      Stationary transmitters for permanent
 is no need to modify or penetrate the             Metering alone will not save energy, but                                                              operation and supply, no risk of leaks,        measurements, portable all-in-one meters
 pipe, system operators save not only          allows comparative data before and after
                                                                                                                                                         no pressure drop                               for the most diverse measuring tasks
 expensive installation work, but above all    energy improvement initiatives, such as:
 interruptions to operation or supply.            • Boiler, HVAC or CHP efficient
      UK buildings covering commercial              delta T achievement

                                                                                                                                                       The ideal system for temporary or permanent submetering,
 and public services, along with the
 manufacturing sector, are responsible
                                                                                                     Fig. 4. Clamp-on steam measurement at major

                                                                                                                                                       energy audits, plant optimisation tasks and the verification
 for 93,000 GWh of the total final UK
                                                                                                     chemical manufacturing plant
 energy consumption; this is 30 per cent

                                                                                                                                                       of existing meters in the industrial sector.
 of UK consumption. And space heating
                                                                                                         FLEXIM’s FLUXUS Energy Meters
 of buildings is the most dominant energy
                                                                                                     are the ideal solution for temporary or
 usage at 49% of the non-domestic
                                                                                                     permanent submetering, energy audits,
 building stock energy consumption. When
                                                                                                     plant optimisation tasks and the verification
 looking at non-electrical energy, space
                                                                                                     of existing meters in the industrial sector.
 heating rises to 78%, and hot water 8%
 of non-electrical energy consumption.
                                                                                                     For further information on how FLEXIM
 (Source: Dept for Business, Energy &
                                               Fig. 2. Typical data centre installation              can deliver metering without supply               FLEXIM Instruments UK Ltd             Tel: 01606 781 420
 Industrial Strategy; Business Energy
 Statistical Summary, July 2018).
                                               showing clamp-on flow transducers
                                               and PT100 temperature sensors prior
                                                                                                     interruption contact: sales@flexim.co.uk          Theatre Court, London Road            sales@flexim.co.uk
                                                                                                     | 01606 781 420 | www.flexim.co.uk
                                               to reinsulating over the pipes.                                                                         Northwich, Cheshire, CW9 5HB          www.flexim.co.uk
12     ENERGY MANAGER MAGAZINE • MARCH 2021
12 CLAMP-ON ENERGY/ HEAT METERING - Energy Manager ...
PEL 103
             MONITORING & METERING

     NEW MICRONICS
                                                                                                                                                                                                 Power & Energy
     PORTAFLOW RANGE                                                                                                                                                                             Logger
     A
                  New Micronics, PORTAFLOW         flow energy measurement for hot and

                                                                                                                                             Bridge the energy gap between today and tomorrow.
                  range with the latest            chilled water applications. The PF333 is a
                  ultrasonic flow measurement      portable, simple to use ultrasonic clamp-
                  technology and Hydronic          on flow and thermal, heat/energy meter,
                  Liquid Flow Energy
     Measurement and a comprehensive data
                                                   that uses the latest cross correlation
                                                   ultrasound flow measurement system to                                                     Increase energy efficiency and reduce your costs.
     logging facility for the PF333 version.       measure flow rate and clamp-on PT100
          Building on its considerable
     experience and success with the
                                                   temperature sensors to measure flow
                                                   and return temperatures. The PF333                                                        Our future energy needs are changing and businesses need
     former PF330 and 220 range Micronics          measures energy rate and totalised
     has developed a New range of                  energy and the Hydronic thermal energy,                                                   to improve their energy efficiency. You can reduce required
     portable, clamp-on, ultrasonic flow           heat or cooling load is calculated from a
     instruments, incorporating the latest
     technology whilst still retaining the
                                                   combination of the flow rate and the flow
                                                   and return temperature difference or
                                                                                                                                             power generation, save money and increase productivity.
     key feature of simple operation, to           delta T to comply with EN1434 section 6.
     provide quick, out of the box results!
          The PORTAFLOW PF333 offers the
                                                        The integral Data Logging has a
                                                   capacity of 100,000,000 data points
                                                                                                system providing improved accuracy
                                                                                                for flow and measurement audits
                                                                                                                                             Gain a competitive advantage now with the PEL 103.
     user quick and accurate flow and energy       with 12 named sites and can be               of old and often challenging pipe-
     measurement and with its easy to              downloaded via USB to CSV files and          work in existing installations.
     follow menu and simple set up, results        export to Excel for further analysis.             For further information on this
     can be achieved within minutes of                   Compact, rugged and reliable, the      product or the Micronics range call
     opening the case! The range continues         PORTAFLOW range has been designed            Micronics on +44(0)1628 810456, or
     to bring simplicity to the non-invasive       to provide sustained performance in          visit www.micronicsflowmeters.com.
     measurement of liquid flow and now            industrial environments with the New
     with the addition of hydronic liquid          cross correlation flow measurement

     QED ENVIRONMENTAL SYSTEMS LAUNCH
     PIONEERING GEOTECH SEM5000™
     PORTABLE SURFACE EMISSIONS MONITOR
                                                                                                                                             The key to a
     L
           eading manufacturer of                  methane (CH4) only,                                                               Paul
           environmental monitoring
           and remediation equipment,
                                                   negating any cross
                                                   gas effects from other
                                                                                                                                 Gooch,
                                                                                                                                 Global      reduced carbon
                                                                                                                                             footprint & improved
     QED Environmental Systems, is                 close hydrocarbons.                                                          Sales and
     officially announcing the launch of                Data readings                                                           Marketing

                                                                                                                                             energy efficiency.
     its much anticipated SEM5000™                 including date, time,                                                         Director
     into its Geotech product range.               GPS coordinates                                                               from QED
           The SEM5000™ is a portable              and concentration                                                             said: “We
     methane detector specially designed for       value, which can then                                                       are very
     landfill surface emissions monitoring,
     reporting and detecting potential leaks
                                                   be saved internally and
                                                   transferred onto a computer using the
                                                                                                excited to officially launch the SEM5000™
                                                                                                into our Geotech product portfolio.
                                                                                                                                             Measure and monitor power usage.
     at wellheads and surface penetrations.
           The unique aspect of the product
                                                   SEMSoft™ software – QED’s proprietary
                                                   software offering multiple reporting
                                                                                                We announced the plans for the new
                                                                                                product last year and we’re looking
                                                                                                                                             Identify inefficiencies and out of hours use.
     is its patented laser technology, which
     enables the device to detect even the
                                                   functions. The SEM5000™ is equipped
                                                   with a GPS antenna and Bluetooth that
                                                                                                forward to beginning production.
                                                                                                    It offers users a safe, reliable and
                                                                                                                                             Discover power factor, phase balance and
     smallest methane emissions – ranging
     from 0.5ppm to 100% concentration – in
                                                   makes this transfer easy and efficient.
                                                   The device can also hold up to 480 hours’
                                                                                                technologically advanced method of
                                                                                                monitoring surface emissions. We’re          harmonic issues.
     less than two seconds. Its state-of-the-art   worth of scan data allowing the user         confident this product significantly
     technology ensures the user acquires the      to look back at readings and make a          advances our product and service
     highest quality readings that are a true
     representation of the air composition.
                                                   more informed decision on next steps.
                                                        The hot swap battery included in the
                                                                                                offering and that our global
                                                                                                customers will benefit from it.”
                                                                                                                                             Contact us to learn more
           Once calibrated, the SEM5000™ can       SEM5000™ can save time and enables               For more information on QED’s
     extract a sample, drawn up through an
     extendable probe across a laser path.
                                                   the user to extend their surveying
                                                   hours in the field. The product is also
                                                                                                range of products, please visit the new
                                                                                                QED website or call +44 (0)333 800                                                                     |
                                                                                                                                                                   CHAUVIN ARNOUX UK Ltd 125 YEARS IN BUSINESS 30 YEARS IN THE UK         |
     The laser technology allows the device to     ATEX Zone 1 certified and supports           0088 or contact sales@qedenv.co.uk
     scan the sample spectrum and identify         surface emissions regulations.                                                                                  1 Flagship Square | Shaw Cross Business Park | Dewsbury WF12 7TH | T: 01924 460494 | E: info@chauvin-arnoux.co.uk
14   ENERGY MANAGER MAGAZINE • MARCH 2021
12 CLAMP-ON ENERGY/ HEAT METERING - Energy Manager ...
MONITORING & METERING                                                                                                                                                                                              MONITORING & METERING

     THE WIRING REGS:
                                                                                                                                              they will measure currents at higher          current measurements are inaccurate,
                                                                                                                                              frequencies inaccurately if, indeed,          how can you be sure that your installation
                                                                                                                                              they measure them at all. That may            satisfies the requirements of the IET

     DO YOUR INSTALLATIONS
                                                                                                                                              not sound too bad – after all 500 Hz is       Wiring Regulations? Fortunately, there
                                                                                                                                              the tenth harmonic on a 50 Hz supply          is a simple solution to this conundrum,
                                                                                                                                              system – but experience shows that            and that’s to acquire one of the new

     REALLY COMPLY?
                                                                                                                                              today’s non-linear loads frequently           generations of clampmeters which has
                                                                                                                                              generate harmonics well beyond this           been designed from the ground up to
                                                                                                                                              – 11th, 13th, 15th and even higher            take into account the conditions likely to
                                                                                                                                              harmonics are by no means unusual.            be found in today’s electrical installations.
     If you’re responsible for an electrical installation in the UK, it                                                                            This deficiency is significant because        Excellent examples are the F407

     will almost certainly need to meet the requirements of the
                                                                                                                                              the heating effect of harmonic currents       and F607 clampmeters from Chauvin
                                                                                                                                              can often be higher than that of the          Arnoux. These measure currents up
     IET Wiring Regulations (BS 7671). Very likely it will have been                                                                          fundamental current, and in some
                                                                                                                                              equipment is proportional to the square
                                                                                                                                                                                            to and including the 25th harmonic
                                                                                                                                                                                            (1250 Hz), and they also feature true
     certified as doing so, but can you be sure? Julian Grant of                                                                              of the harmonic order. In the example         RMS measurement, which means

     Chauvin Arnoux raises some thought-provoking issues.                                                                                     shown of a CFL lighting circuit (Figure 1)    that the accuracy of the results they

     F
                                                                                                                                              there are significant quantities of odd       deliver does not depend on the
                                                                                                                                              harmonics, relative to the fundamental        current or voltage being measured
               rom the very first edition,                                                                                                                                                  having a sinusoidal waveform. They
                                                                                                                                              current. In this case a “standard”
               which was published as                                                                                                                                                       also include any DC component in
                                                                                                                                              clampmeter from a leading brand under
               long ago as 1882, the IET                                                                                                                                                    current measurement results.
                                                                                                                                              reported the RMS current by 50% –
               Wiring Regulations have                                                                                                                                                           The F407 and F607 will, therefore,
                                                                                                                                              displaying a reading of 2.9A versus the
               been formulated as an aid to                                                                                                                                                 provide complete certainty that current
                                                                                                                                              actual 6A RMS present in the circuit.
     ensuring that electrical installations                                                                                                                                                 measurements made with them reflect
                                                                                                                                                   The final problem with traditional
     are safe and pose minimal risk to                                                                                                                                                      the true operating conditions of the
                                                                                                                                              clampmeters is not connected with high
     users. An important factor is and has                                                                                                                                                  installation. But that’s not all they can
                                                                                                                                              frequencies, but with DC. This is because
     always been ensuring that conductors                                                                                                                                                   do. These versatile instruments also
                                                                                                                                              many of them simply don’t respond to DC,
     and equipment are properly sized                                                                                                                                                       measure true inrush current for motors
                                                                                                                                              so that if there’s a DC component in the                                                      but you can also use the results it
     for the currents they are required                                                                                                                                                     and inductive loads, as well as power
                                                                                                                                              current be measured, it will be ignored.                                                      produces for reassurance that your
     to handle. And final confirmation                                                                                                                                                      factor and active, reactive and apparent
                                                                                                                                                   In summary, if you’re using a typical                                                    electrical installations really do meet
     that this requirement is being met,                                                                                                                                                    power. Investing in an instrument of
                                                                                                                                              clampmeter to check an electrical                                                             the requirements of both the IET Wiring
     especially after an installation has                                                                                                                                                   this type is money well spent because
                                                                                                                                              installation, the current measurements                                                        Regulations and Electricity at Work
     been modified or extended, is to                                                                                                                                                       with it you not only have a valuable tool
                                                                                                                                              it produces may well be inaccurate, for                                                       Regulations. www.chauvin-arnoux.co.uk
     measure the current and confirm                                                                                                                                                        for installation testing and diagnostics,
                                                                                                                                              the reasons we’ve discussed. And if your
     that this is within the permissible
     ratings of the cables and equipment.
          Making measurements under
     operating conditions is without doubt
     an excellent way of assessing the
     performance and safety of an electrical
     installation – but there’s a trap for the
     unwary. This statement is only true
     if the measurements are accurate                                                                                                                                                                                      The Public Sector Sustainability
     and reliable. But why wouldn’t they
     be? Most current measurements are                                                                                                                                                                                     Association (PSSA) provides a
     likely to be made with a fairly modern
     clampmeter and, provided that this                                                                                                                                                                                    professional association and network
     was procured from a reputable
     manufacturer and has been calibrated
                                                                                                                                   Figure 1                                                                                for all those working in the Public
                                                 domestic installations, but that situation
     at appropriate intervals, surely it can
                                                 has changed. Factories, offices, shops       commercial and industrial environments.                                                                                      Sector who have a common interest in
     be relied on to give accurate results?
                                                 and even our homes are now full                   All of this is bad news if you’re trying
          The answer is yes – and no! That
                                                 of non-linear loads like LED lighting        to make accurate current measurements                                                                                        sustainability. The aim of the association
     clampmeter may well give accurate
                                                 systems, televisions, computers, audio       using a typical clampmeter. Many of
     results when used in the conditions
                                                 equipment, vacuum cleaners, air              these are designed in such a way that                                                                                        is to bring together a wide group of
     for which it was designed, but those
                                                                                              they read correctly only when the
     conditions may not reflect what’s
                                                 conditioning systems, washing machines
                                                                                              current being measured has a pure
                                                                                                                                                                                                                           people working across all areas of
                                                 and many others. All of these loads have
     going on in many of today’s electrical
     installations. Let’s cut to the chase.
                                                 the potential to produce harmonics           sinusoidal waveform or something                                                                                             the Public Sector – to educate, train,

                                                                                                                                                           www.pssa.info
                                                 so it’s no longer safe to assume that        very close to it. With instruments of
     There are two factors that may affect the
     accuracy of current measurements made
                                                 harmonics are an issue that’s confined       this type, the waveform distortions                                                                                          support and connect as we work
                                                 to large industrial installations. Some      introduced by harmonics will seriously
     with a typical clampmeter, including some
                                                 of these types of load and also some         degrade measurement accuracy.                                                                                                towards a more sustainable future.
     that are still on the market today. These
                                                 renewable energy systems, such as                 And there’s another issue: frequency
     issues are harmonics and DC currents.
                                                 solar PV installations, can also inject DC   response. A lot of clampmeters have
          A few years ago, neither of these
                                                 currents into the supply and, once again,    a frequency response that extends
     was a particular problem, especially in
                                                 this can happen in domestic as well as       no further than around 500 Hz, so

16   ENERGY MANAGER MAGAZINE • MARCH 2021                                                                                                                                                                                    ENERGY MANAGER MAGAZINE • MARCH 2021                     17
12 CLAMP-ON ENERGY/ HEAT METERING - Energy Manager ...
HEAT PUMPS                                                                                                                                                                                                                               HEAT PUMPS

     PUMP-UP THE CARBON
     SAVINGS FROM HEAT
     Heat pumps provide a proven and effective solution to
     the complex challenge of decarbonising heat, says Luke
     Bannar-Martin of Centrica Business Solutions. In this
     article he explains how organisations can take a giant
     step towards delivering on their net zero ambitions.

     H
                  eat pumps can provide                Another driver is the proposed              to supplement cooling, they can operate
                  heating from 35°C to             update to SAP (SAP10.1), which will             at a ratio of 5-9 units of heat /cooling
                  120°C and do not emit            reduce the carbon factor of electricity         per 1 unit of electricity. See Figure 1.
                  any direct emissions,            by 75%. This change will likely take effect
                  significantly reducing           when the Part L planning document               HOW TO CHOOSE THE
     or replacing an organisation’s need           is updated this year. As the new build          RIGHT HEAT PUMP?
     to burn fossil fuels on-site. Relative        market segment moves away from                      There are a range of heat pump
     to a natural gas fuelled boiler, they         natural gas and towards electrically driven     options, so which one is right for
     can reduce overall greenhouse gas             heating solutions, heat pumps offer the         your organisation? How do you
     emissions by as much as 80%.                  most efficient way to electrify heat.           choose between an air, ground,               • Simple, scalable and                      • Improved cash flow and eligible             CONSIDERATION
         There is potential to couple heat             Despite being a proven and mature                                                          straightforward installation                for green stimulus grants
                                                                                                   water or waste-source pump? What                                                                                                         • There is no ‘one-size-fits-all’
     pumps with other on-site generation           technology, heat pumps currently only                                                        • Possible to increase efficiency
                                                                                                   factors should you consider in the                                                     CONSIDERATION                                       with water source systems
     technologies to improve cost and carbon       satisfy around 5% of global heat demand         selection and feasibility process?             by utilising waste heat
                                                                                                                                                                                            • Increased Capex, relative                     • Unlike ground source systems,
     performance, e.g. in combination with         from buildings, but the market is growing                                                    • Potential to integrate heat storage
                                                                                                                                                                                                                                              thermal energy management
     solar PV, heat pumps become carbon            rapidly. The International Energy Agency        1. AIR-SOURCE HEAT PUMPS                       to load shift and enable the                to an air source system
                                                                                                                                                                                            • Process to drill boreholes                      may not be possible
     neutral, whereas adding CHP into the          forecasts that, in the absence of a large            Capable of supplying hot water to         possibility to generate revenue from
                                                                                                                                                                                              can be disruptive                             • If needed, obtaining abstraction
     mix can enhance heat generation               build out of hydrogen infrastructure,           any site under most conditions, this           Demand Side Response services
                                                                                                                                                                                            • Retrofit projects can be challenging            licence can be a lengthy
     and accelerate cost returns.                  over 50% of heating in Europe could             option is the least intrusive and most
                                                                                                                                              CONSIDERATION                                   due to space required                           and complex process
                                                   be supplied by heat pumps in 2050.              capital cost-effective option. Normally
     FINANCIAL SUPPORT                                                                             fitted to the side or on the roof of a       • Efficiency is highly dependent            • More complex to retrofit on an
                                                                                                                                                                                                                                          SPECIALIST HEAT
     FOR HEAT PUMPS                                HOW DO HEAT                                     building, the heat pump draws air              on ambient conditions                       existing site than air-source
                                                                                                                                                                                                                                          PUMP SUPPORT
          Technology costs are reducing,
                                                   PUMPS WORK?                                     from outside and transfers the heat          • Reduced thermal energy
                                                                                                                                                                                          3. WATER-SOURCE
                                                                                                   by means of compression. By utilising          management                                                                                  As heat pump specialists, Centrica
     making heat pumps more cost-effective.            Heat pumps extract natural warmth                                                                                                       A similar system to a ground-source,
                                                                                                   a waste heat interface, the heat pump        • Low efficiency of the system                                                            Business Solutions provides a complete
     Importantly, several UK Government            from the ground, air, water, or other                                                                                                  they extract heat from a body of water
                                                                                                   can recover waste heat from chillers           can impact business case                                                                design, installation, operation and
     funded green stimulus grants are              source (even in winter) and use it to                                                                                                  and convert it into useful heat using
                                                                                                   or waste water, thereby improving            • Lowest lifetime carbon savings of                                                       maintenance service – with flexible
     available to support organisations in         provide heat for space heating, hot water                                                                                              submerged pipes containing a working
                                                                                                   the performance and financials.                all heat pump source options                                                            financing to ensure that projects can be
     switching to sustainable heat generation,     and certain industrial processes. This                                                                                                 fluid to absorb heat. If available to your      kept off balance sheet, if necessary.
     such as the Public Sector Decarbonisation     operates similar to an air-conditioning         ADVANTAGES                                 2. GROUND-SOURCE                           organisation, an open body of water (e.g.           Further information:
     Scheme, and the Industrial Energy             unit running in reverse. This process will                                                     HEAT PUMPS                              reservoir, lake, sea), a flowing body of        www.centricabusinesssolutions.com
                                                                                                     • Lowest Capex and maintenance
     Transformation Fund (IETF).                   typically deliver between 3 and 5 units of                                                      Heat from the sun as well as from      water (e.g. river, wastewater)
                                                                                                       cost option; currently eligible
          As approved suppliers to both            heat for every 1 unit of electricity it uses.                                              the core of the Earth keeps the ground      or underground water
                                                                                                       for government grants
     government funding schemes, Centrica          When configured to provide chilled water                                                   at a reasonably consistent temperature      (e.g. aquifer) source, can
     Business Solutions is helping public                                                                                                     all year. Ground-source Heat Pumps          provide more an even more
     bodies and industrial businesses to                                                                                                      can use thermal boreholes as a heat         advanced heating solution.
     deliver heat pump projects. We can                                                                                                       source for a year-round reliable and
     also provide project finance to spread
                                                                                                                                                                                          ADVANTAGES
                                                                                                                                              predictable source of stable temperature
     out the cost of installing a heat pump.                                                                                                                                                • Seasonal performance
                                                                                                                                              heat. The heat recovery loop can
          As a proven, scalable technology,                                                                                                                                                   similar to, or better
                                                                                                                                              be used to store heat in the ground                                                           www.energymanagermagazine.co.uk
     that’s rapid to deploy, it comes as                                                                                                                                                      than, ground-source
                                                                                                                                              during the hotter months for drawing
     no surprise that the UK government                                                                                                                                                     • Larger reduction in
                                                                                                                                              off during the cooling months.
     is targeting a massive 20-fold rise in                                                                                                                                                   associated carbon                           To receive Energy
                                                                                                                                              ADVANTAGES                                      emissions
     electric heat pump installations - from
     just 30,000 today to 600,000 by 2028.                                                                                                      • Greatly increased seasonal efficiency     • Capex and land
                                                                                                                                                                                                                                       Manager Magazine FREE
          In its recent Energy White Paper, the                                                                                                   and performance over air-source             requirement lower than            a       of charge, please visit:
     Government signalled its commitment                                                                                                        • Larger reduction in associated              ground source
     to gradually removing and replacing                                                                                                          carbon emissions                          • Can use                           the
     gas boilers with cleaner alternatives. It                                                                                                  • Ground loop system enables                  water source                      to  energymanagermagazine.
     is hoped that by the mid-2030s at the                                                                                                        seasonal thermal balancing                  provide ‘free cooling’                    co.uk/subscribe
     latest, all newly installed heating systems
     will be low carbon, such as heat pumps.

18   ENERGY MANAGER MAGAZINE • MARCH 2021                                                                                                                                                                                  ENERGY MANAGER MAGAZINE • MARCH 2021                      19
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