Solar tenant power A cornerstone of energy transition Paul Krebs, SOLARIMO GmbH
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Solar tenant power A cornerstone of energy transition Paul Krebs, SOLARIMO GmbH
How solar tenant
1 power works
The rooftop solar system
converts the light of the sun into
electricity without emitting CO2
2
The electricity is consumed
on site: by the tenants and
general electricity in the
house
3
If there is no sunshine,
the electricity is produced
by hydropower
2
Around 750 million m2 of roof space in Germany is unused
57% of Germans are living in Electricity costs are relatively
rental flats high for consumers in
Germany
3.8 million households (>5 GW
PV) can be supplied with solar
tenant power
Tenants' Power Law of 2017
An approach with slow success
What is being promoted? Why is the market not picking up speed (yet)?
PV systems on residential Low motivation among many
buildings, from June 2017 (max. property owners
100 kW per building Cost driver 1: approx. 7,000 EUR
On-site consumption without measurement technology per
usage of the grid building/house connection
Electricity price at least 10% below Cost driver 2: Small plants 15-45 kW with
basic supply high costs for scaffolding etc.
Grid network operators complicate the
What are the actions taken? situation on purpose
Indirectly: No grid fees, electricity tax
Directly: "tenant power surcharge" for
electricity sold locally (2017: 3.8 ct/kWh,
2020: 0ct/kWh)
"Backup": EEG compensation for feeding
into the grid
Weitere Beispiele
Challenges aus der Praxis
of implementation
Legal issues – summary of systems
Dolgensee-Center, Berlin
12 buildings with 12 grid connections
12 separate PV systems with approx.
27 kW per system
Rheinsberg
10 buildings with 10 grid connections
10 separate PV systems, each with
approx. 40 kW per system, in total 400
kW
5
Expectations vs. reality
Implemented projects in numbers
Expectation Reality
The tenant power surcharge was intended In 2020 a total of 1.062 projects were
to support projects with an accumulated realized with combined performance of
performance of 500 MW per year. 21,77 MW, most of them below 10kW.
Conclusion
There‘s a huge gap between implemented and potential
capacity. It shows that owners especially of large
residential properties are either unwilling or unable to
fullfill the given requirements.
6
Weitere
Tenants'Beispiele aus what
Power Law- der Praxis
should come and what will come?
5 proposals of SOLARIMO Draft EEG 2021 (status Sep. 2020)
1. Eliminate tax risks
New benchmarks from
2. Adjust the tenant power surcharge (§23b) 01.01.2021 in ct/kWh: 3.79 up to
10kW / 3.52 up to 40kW / 2.37 from
40 kW
3. Enable "supply chain model" (§21 paragraph 3) but: electricity tax applies
4. Combination of systems (§24, §9 paragraph 3) replaced by new,
ineffective regulation
5. Cooperation of grid operators
7Weitere Beispiele aus der Praxis
Further proposals
Proposal of SOLARIMO Draft EEG 2021 (status Sep. 2020)
First proposals from
Enable district powering (§21 paragraph 3) Federal Council to extend
to neighborhoods and
further simplifications
Metering system operation
8Thank you for your attention!
Paul Krebs
Head of Marketing and Sales
paul.krebs@solarimo.de
Tempelhofer Weg 44
10829 Berlin
www.solarimo.deYou can also read
