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Business Requirements Specification
Market Enhancements for Summer 2021 Readiness
Document Version: 1
Current Version Date: 2/25/2021
Owner: Xie, June Program Office
Copyright 2021 California ISO
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Market Enhancements for Summer 2021 Readiness Business
Date Created: 2/25/2021
Requirements Specification - Planning
Disclaimer
All information contained in this draft Business Requirements Specification (BRS) as provided by the
California Independent System Operator Corporation (ISO) is prepared for discussion and information
purposes only. The draft BRS is provided “as is” without representation or warranty of any kind,
including, without limitation, a representation or warranty as to accuracy, completeness, or
appropriateness for any particular purpose. The draft BRS shall be revised as the development and
review of the business requirements progresses. The ISO assumes no responsibility for the
consequences of any errors or omissions. The ISO may revise or withdraw all or part of this information
at any time at its discretion without notice.
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Revision History
Date Version Description
2/25/2021 1.0 Initial Draft of BRS Document Release. The stakeholder comments due
2/26/2021 on draft final proposal. The BRS will be updated according to the
final proposal.
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Table of Contents
Disclaimer .................................................................................................................................................................... 2
1 Introduction......................................................................................................................................................... 5
1.1 Purpose ...................................................................................................................................................... 5
1.2 References .................................................................................................................................................. 5
2 Intellectual Property Ownership ....................................................................................................................... 6
2.1 Checklist ...................................................................................................................................................... 6
2.2 Acronyms and Definitions Tables ................................................................................................................ 6
3 Details of Business Need/Problem ................................................................................................................... 7
3.1 Description ................................................................................................................................................... 7
4 Business Impacts ............................................................................................................................................... 8
4.1 Business Practice Manuals (BPM) .............................................................................................................. 8
4.2 Other ............................................................................................................................................................ 9
5 Business Requirements .................................................................................................................................. 10
5.1 Business Process: Manage DAM and RTM Export and Load Priorities ................................................... 10
5.1.1 Business Requirements ........................................................................................................................ 11
5.2 Business Process: Manage RTM EIM Coordination and Resource Sufficiency Test ............................... 23
5.2.1 Business Requirements ........................................................................................................................ 23
5.3 Business Process: Manage RTM Import & Export Market Incentives during Tight System Conditions ... 28
5.3.1 Business Requirements ........................................................................................................................ 28
5.4 Business Process: Manage RTM Real-Time Price Enhancements .......................................................... 33
5.4.1 Business Requirements ........................................................................................................................ 33
5.5 Business Process: Manage DAM and RTM Reliability Demand Response Resource (RDRR) Dispatch
and Real-time Price Impacts .................................................................................................................................. 36
5.5.1 Business Requirements ........................................................................................................................ 36
5.6 Business Process: Manage OASIS Reports and Planning ....................................................................... 40
5.6.1 Business Requirements ........................................................................................................................ 40
Appendix-A – Acronym Definition ........................................................................................................................... 41
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1 Introduction
This Business requirements specification (BRS) supports Market enhancements for summer 2021
readiness project.
1.1 Purpose
A historic heat storm impacted western US for several consecutive days in mid-August 2020, causing
energy supply shortages that led to two rotating power outages in the ISO footprint on August 14th and
15th. CAISO proposes following market enhancements to prepare for this upcoming summer:
1. Export, load, and wheeling priorities
2. EIM coordination and resource sufficiency test review
3. Import market incentives during tight system conditions
4. Real-time price enhancements
5. Reliability demand response dispatch and real-time price impacts
6. OASIS report and interconnection process enhancements
1.2 References
All references represent external requirements documents or stakeholder requests, developed and
submitted by the Business Units.
https://stakeholdercenter.caiso.com/StakeholderInitiatives/Market-enhancements-for-summer-
2021-readiness
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2 Intellectual Property Ownership
Intellectual Property covers a broad array of information and materials, including written works, computer
programs, software, business manuals, processes, symbols, logos, and other work products.
Determining ownership of Intellectual Property is very important in preserving the rights of the California
ISO, and helps to avoid Intellectual Property infringement issues. In considering the business
requirements or service requirements to be performed, the business owner of the project must determine
Intellectual Property Ownership.
2.1 Checklist
The ISO retains intellectual property ownership of the following:
Related Business Practice Manuals
All rights reserved for works included within this BRS document
© California ISO, 2011-2021. All rights reserved.
2.2 Acronyms and Definitions Tables
Please refer to Appendix A for a list of Acronyms and Definitions.
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3 Details of Business Need/Problem
3.1 Description
Business Opportunity/Problem Statement:
What:
CAISO proposes enhancements to address:
1. Export, load, and wheeling priorities
2. EIM coordination and resource sufficiency test review
3. Import market incentives during tight system conditions
4. Real-time price enhancements
5. Reliability demand response dispatch and real-time price
impacts
6. OASIS report and interconnection process enhancements
The CAISO’s objectives for these enhancements are to:
Equitably balance the reliability of serving CAISO
balancing authority area load with the reliability of exports,
while providing open access to the CAISO transmission
system.
Better ensure each balancing authority area participates in
the EIM with sufficient resources.
Provide improved incentives for supply to be available
during tight system conditions
When: These proposed enhancements are focused on changes that will
be feasible for the CAISO and stakeholders to implement by
summer 2021.
Why do we have this The proposed changes are in response to the findings in the
opportunity/problem: CAISO/CPUC/CEC Root Cause Analysis of last summer’s
controlled load shedding, the CAISO’s own analysis, and
stakeholder concerns. ISO commits to the development of actions
to prevent supply gaps in advance of summer 2021.
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Business Opportunity/Problem Statement:
Who does this Market Participants
opportunity/problem
impact: Policy
Legal
Customer Service
4 Business Impacts
4.1 Business Practice Manuals (BPM)
BPM Description of Impact(s)
Update RDRR 60, 15 and 5 minute
Demand Response
dispatch
Update Base schedule resource
sufficiency evaluation process
Energy Imbalance Market
Include uncertainty requirement in
capacity test.
Remove 100MW / 125% cap on behind-
Generator Interconnection and Deliverability the-meter expansion requests
Allocation Procedures
Update for Effective SOC Limits
publishing via CMRI.
Market Instruments
Update for gross import/export by tie via
OASIS.
Update Load, export and wheeling
priority.
Market Operations
Update for operating reserve release
under AWE.
Update provide make-whole payment for
Settlements and Billing real-time market hourly block imports
during tight system conditions.
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4.2 Other
Impact Description (optional)
Market Simulation Yes
Market Participant Impact Yes
External Training Yes
Policy Initiative Yes
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5 Business Requirements
The sections below describe the business processes and the associated business requirements involved
in the project. These may represent high-level functional, non-functional, reporting, and/or infrastructure
requirements. These business requirements directly relate to the high-level scope items determined for
the project.
5.1 Business Process: Manage DAM and RTM Export and Load Priorities
Definition:
PT (price taker) export – a self-scheduled export with a designated supporting resource with sufficient
non-RA generation bid in the market
LPT (lower price taker) export – a self-scheduled export that does not designate a supporting resource
with sufficient non-RA generation bid in the market
Economic export – an export with economic bid
RUC export – any export deemed physically feasible in the residual unit commitment process
Current Summer 2021
Day-Ahead Market
Day-Ahead Market
1. PT Export, Load & SS Wheel
1. SS Wheel 2. LPT Export
2. PT Export & Load 3. Economic Export & Economic Wheel
3. LPT Export
4. Economic Export & Economic Wheel
Real-Time Market Real-Time Market
1. SS Wheel 1. PT Export, Load & SS Wheel
2. RUC Export 2. RUC Export w/o Gen
3. PT Export & Load 3. LPT Export
4. LPT Export 4. Economic Export & Economic Wheel
5. Economic Export & Economic Wheel
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5.1.1 Business Requirements
Requirement Potential
ID# Business Feature Type Application(s)
Impacted
Set MF Flag to identify Resource that
SUMR21- can support Export Core Master File
BRQ100
Define flag for the generating resource GenRDT
indicate whether it can be designated Transcript
for export, with default as NO
o The resource must be CAISO
internal resource.
o The resource must be a
generating resource, No NGR,
PDR, RDRR, Pump only
(PMPP).
Receive SC submitted flag and indicate
the resource that can be designated for
export, through Resource Data
Template (RDT)
o SC of designated resource
must attest that the resource is
capable at the time of bid
submission of supporting an
hourly block schedule over the
entire relevant operating hour
equal to the PT export quantity.
o SC of designated resource
must attest the capacity has
been forward contracted with
an external load serving entity.
o SC of Designated resource
must participate in RUC up to
the PT export.
o SC of Designated resource
must rebid in RTM up to the PT
export, if the resource not
receive a RUC schedule.
o SC cannot designated an
Energy-only resource
Pass to the market
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
Receive resource flag that can support
SUMR21- Export Core SIBR
BRQ112
For generating resources, system shall
receive data determining whether the
resource can or cannot potentially support
a self-scheduled export.
SUMR21- SC submit self-scheduled export use Existing SIBR
BRQ113 existing function:
System shall receive:
SC submitted Self-scheduled
export with designated Supporting
Resource ID.
Self-scheduled export without
designated resource ID.
Set RUC bid to 0$/MWH for resources
SUMR21- supporting self-scheduled exports Core SIBR
BRQ114
For Designated resource RUC bid, system
shall:
Insert/replace/extend $0 RUC
availability bids on all resources
supporting self-scheduled exports.
$0 RUC availability bids shall cover
the capacity range that supports
the sum of self-schedules which
are associated with the resource
Set the portion above the PT export
quantity to the submitted RUC
availability bid price
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
System shall validate DA non-RA
SUMR21- supply, setting priority of the export in Core SIBR
BRQ122 DAM
Specify priorities from high to low for self-
scheduled export: DAPT, DALPT
For SC submitted Self-scheduled export
with designated Supporting Resource
ID
Supporting resource shall be the
resources that have flag to support
export
The total supported PT export capacity
shall be limited to the non-RA capacity
bid in the market excluding ancillary
services self-provision and awards, as
applicable.
If the total supported PT export
capacity is not sufficient to cover all
associated PT export self-schedules,
all these self-schedules shall be
converted to DALPT export self-
schedules.
For Self-scheduled export without
designated resource ID
The submitted export schedule without
designated resource shall be DALPT
export.
System shall pass export and
SUMR21- associated priority to the market Core SIBR
BRQ123
SIBR shall pass the priority DAPT,
Wheel DAPT, and DALPT associate
with each export to the market.
Use existing SIBR clean bid with new self-
schedule type enumerations.
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
Notify the designated resource SC in
SUMR21- Core SIBR
DAM
BRQ124
System shall notify the SC of the
designated Resource that its resource
is supporting DAPT export. The
notification shall include:
o SC of export, export resource
ID, market, start/end time
o SC of designated resource,
designated resource ID,
designated MW
SUMR21- Specify the wheel through schedule Core SIBR
BRQ128 priority in market in DAM
Validate in self-scheduled wheel
schedule,
o No RA Import Resources
o No Export Resource LPT Self-
Schedules
o No Supporting resource
For a valid self-scheduled wheel
schedule, the export shall be wheel
DAPT export.
For self-scheduled wheel schedule
using TOR or ETC right, the import leg
and/or export leg shall have the
TOR/ETC priority if the import or export
leg use TOR/ETC right.
For economic bid wheel schedule,
energy bid price shall not be negative
for the import resource in wheel
schedule.
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
SUMR21- For a valid self-scheduled wheel Core DAM
BRQ129 schedule, the PT self-scheduled import
shall be modeled as import with
$0/MWh import bid in DAM.
Set up the higher penalty cost for
SUMR21- Core MPM, IFM,
higher priority in MPM, IFM and RUC:
BRQ136 RUC
o First priority: DAPT exports and
CAISO forecasted Load or demand
forecast and self-scheduled wheel
DAPT export
o Second priority: DALPT export
o Use economic bid for the economic
export and economic wheel.
Note:
The first priority is below TOR/ETC
schedule priority.
Optimize and Publish Export schedule
SUMR21- Existing MPM,
award and designated resource award
BRQ137 IFM,RUC
in market:
Self-scheduled Export and its
designated resource are
independently optimized in MPM,
IFM, and RUC.
Publish the export schedule and
designated resource awards.
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
If self-scheduled wheeling schedule not
SUMR21- Core SIBR
re-bid in RTM, System shall generate
BRQ138
wheel DAPT schedule that is equal to
RUC schedule for export
Import Resource with a Wheeling
Bid Component in the RTM Clean
Bid with the same Wheeling Bid
Component as in the DAM Clean
Bid
Export Resource with a Wheeling
Bid Component, a wheel DAPT
Self-Schedule equal to the RUC
Schedule will be generated in the
RTM Clean Bid with the same
Wheeling Bid Component in DAM.
If self-schedule export with DAPT
SUMR21-
schedule not re-bid in RTM:
BRQ139
System shall generate DAPT
schedule that equal to DAPT
schedule in the DAM for export
If the support resource RTM bid
can support DAPT schedule in the
DAM.
If the support resource RTM bid
cannot support export DAPT
schedule in the DAM, System shall
convert total DAPT schedule in to
DALPT schedule.
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
Supporting resource RA RUC
SUMR21- Core SIBR
obligation:
BRQ140
Expanding Supporting resource RA RUC
obligation for non-RA capacity equal to the
sum of applicable DAPT exports.
The Eligible PT Export Capacity for a
Supporting Resource shall be limited to the
capacity bid in the market, reduced by RA
capacity, excluding ancillary services self-
provision and awards, as applicable.
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Self-schedule export submitted or re-
SUMR21- submitted in real-time: Core SIBR
BRQ142
Specify priorities from high to low for self-
scheduled export: DAPT/RTPT, DALPT,
RTLPT
For Self-scheduled export with designated
supporting resource submit in RTM,
Designated resource shall be
resources defined in MF
For the DAPT export in DAM to receive
DAPT priority in RTM, sum of
applicable self-schedule exports
designate the same supporting
resource shall not exceed the
supporting resource’s RUC schedule,
and supporting resource RTM bid can
support resource RUC schedule.
Otherwise, all the applicable exports
will convert to DALPT.
Specify the export schedule with RTPT
priority that the resource’s RTM
submitted capacity, reduced by RA
capacity, can support after DAPT.
Specify the export schedule with RTPT
priority if the export with supporting
resource. The supporting resource is
not associated with DAPT in DAM. The
Resource RTM submitted capacity,
reduced by RA capacity, can support
self-scheduled export.
For the self-schedule export without
designated supporting resource submit in
RTM,
Specify the export schedule with
DALPT If the export not exceed the
RUC export after DAPT.
Specify the export schedule with
RTLPT for the amount of the export
exceed the RUC export after
DAPT.
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
Specify the export schedule with
RTLPT if the export has no RUC
schedule.
Please see Example 5.1
System shall Pass the priority associate
SUMR21- with each export to the market in RTM. Core SIBR
BRQ143
Note: use SIBR clean bids with new self-
schedule type enumerations
Notify the designated resource SC in
SUMR21- Core SIBR
RTM
BRQ146
System shall notify the SC of the
designated Resource that its resource
supporting DAPT and RTPT export.
The notification shall include:
o SC of export resource, export
resource ID, market, start/end
time.
o SC of designated resource,
designated resource ID,
designated MW.
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
SUMR21- Specify the wheel through schedule Core SIBR
BRQ150 priority in RTM:
For wheel clear in RUC, not re-bid in
RTM, set RUC cleared wheel as wheel
DAPT export.
For self-scheduled wheel schedule bid
in RTM, the export shall be DAPT
export up to the RUC wheel schedule.
For self-scheduled wheel schedule, the
export exceed the RUC wheel
schedule shall be RTPT export.
For self-scheduled wheel schedule
using TOR or ETC right, the import leg
and/or export leg shall have the
TOR/ETC priority if the leg use
TOR/ETC right.
The wheel schedule with economic
bids shall be Economic bid for both
import and export.
SUMR21- In RTM For PT self-scheduled wheel Core RTM
BRQ151 schedule, the self-scheduled import shall
be modeled as import with $0/MWh
economic import bid.
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
Set up Penalty cost in STUC, RTPD and
SUMR21- RTD Core STUC, RTPD,
BRQ158 RTD
First priority: DAPT export, RTPT
export, load/demand, wheel DAPT
and wheel RTPT export
Second priority: DALPT export
Third priority: RTLPT export
(Existing) use economic bid for the
economic export and economic
wheel
Self-scheduled Export and its
designated resource are
independent optimized in RTM.
Note:
TOR and ETC have higher priority than
DAPT export.
All other penalty costs, relative to the PT
export shall remain.
Expand scope of UI for export by
SUMR21- priority in Hourly/FMM Intertie review Core RTPD, RTD
BRQ160 screen
Currently, there is functionality in
market on Hourly/FMM intertie review
for PT/LPT exports which are displayed
on UI for operator review before
sending instruction out.
With this implementation, there will be
DAPT, RTPT, DALPT, and RTLPT.
Wheel DAPT, Wheel RTPT. System
will allow operator review and control
the instruction of self-scheduled the
export and wheeling import/export by
priority category.
Example 5.1:
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5.2 Business Process: Manage RTM EIM Coordination and Resource
Sufficiency Test
Perform capacity test after flex ramp test. Include the uncertainty requirements in the
capacity test (RTBS)
Account resource derate in the capacity test (RTBS)
Fix defect on double count mirror resource
Require auto-matching for mirror resources mirroring system resource at ISO SP(MF)
Set priority for base intertie schedules and base ETSR for EIM entities higher than other
base schedules (RTM)
Running out of advisory transfer for EIM BAA under contingency
o Use last RTD advisory pre-contingency for EIM transfer (RTM)
5.2.1 Business Requirements
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ID# Business Feature Requirement Potential
Type Application(s)
Impacted
SUMR21- Account resource availability in EIM Core RTBS
BRQ210 base schedule capacity test
Receive resource outage/derate
data
Receive resource Manual
Dispatch instruction
Account resource outage/derate
and manual dispatch for next
trading hour 15-minute intervals in
the bid range capacity and
perform the EIM base schedule
Capacity test.
SUMR21- Fix the defect that double count of Core RTBS
BRQ212 mirror resources
The mirror resource in CAISO scheduling
point shall only be counted in EIM BAA
base schedule flex ramp test and
capacity test, not in ISO.
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SUMR21- Set auto-matching for specified mirror Core Master File
BRQ240 resources
Require the auto-mirror flag for
the mirror resources that are
mirroring system resources at
CAISO interties.
EIM entity shall provide the auto-
mirror mapping between mirror
system resources and registered
ETIE, ITIE, TG and TNGR.
Note:
The MF set auto-mirror for the mirror
resource that mirroring system resource.
In the RTM, the auto-mirroring function
will ensure the mirror resource reflect the
system resource changes. This is an
existing function in the market.
Outreach to EIM entities to provide this
mapping.
Adjust penalty cost for base ETSR,
SUMR21- Core RTM
base intertie schedule
BRQ250
Adjust penalty cost for base ETSR
and base intertie schedules higher
than other base schedules.
Use last advisory RTD schedules
SUMR21- Core RTM
BRQ260
If the contingency operation extend
beyond the advisory horizon of the last
pre-contingency RTD run, market shall
use the last solved advisory real-time
dispatch (RTD) results to set EIM
transfers.
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SUMR21- Core RTBS
Perform Independent flexible ramping
BRQ260
test first
System shall always run the
flexible ramping test first for each
EIM BAA.
Pass the net load uncertainty
requirement used in Flexible
ramping test to the following
Capacity test.
Note:
Uncertainty requirement is defined
as each balancing authority area’s
calculated flexible ramping
requirement minus the diversity
benefit.
SUMR21- Include the uncertainty requirements Core RTBS
BRQ262 in the capacity test:
Add the uncertainty requirement
from Flexible Ramping sufficiency
test in the capacity test
requirement.
Perform capacity test after the
flexible ramping test for each EIM
BAA
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Always perform both capacity test and
SUMR21- Core RTBS
flexible ramping test
BRQ264
Regardless of fail or pass, always
perform both tests, flexible
ramping test first and then
capacity test for each EIM BAA.
Only both flexible ramping test
and capacity test are pass, the
RSE is deemed successful for the
corresponding trading hour 15-
minute intervals that tested.
Either one or both tests are failed,
the RSE is deemed failed for the
trading hour 15-minute interval
EIM BAA. The existing rule to limit
EIM transfer applies.
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5.3 Business Process: Manage RTM Import & Export Market Incentives
during Tight System Conditions
5.3.1 Business Requirements
Requirement Potential
ID# Business Feature Type Application(s)
Impacted
SUMR21- Identifications of Interties Core Settlements
BRQ325 that are Eligible for a Bid
Cost Make-Whole Payment
during Tight System
Conditions
During tight system
conditions (AWE date/time
window), System shall
identify the following interties
to be eligible for a bid cost
make-whole payment:
Each HASP Block
Intertie Import
Schedules, that bid into
RTM, based upon the
FMM Optimal Energy
above the DA Schedule
Energy, or
Each HASP Block
Intertie Export
Schedules, that bid into
RTM, based upon the
FMM Optimal Energy
below the DA Schedule
Energy.
Note:
Refer to SUMR21-
BRQ440 for
Operator’s
identification of tight
system conditions.
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
SUMR21- Calculation of Make-Whole Core Settlements
BRQ330 Energy for RTM
Incremental Import and
Decremental Export
Interties during Tight
System Conditions
During tight system
conditions (AWE date/time
window), System shall
calculate the FMM make-
whole energy (MWh) for
interties that are identified to
be eligible for bid cost make-
whole payment.
Note:
Refer to SUMR21-
BRQ325.
SUMR21- Calculation of Make-Whole Core Settlements
BRQ340 Prices for RTM
Incremental Import and
Decremental Export
Interties during Tight
System Conditions
During tight system
conditions (AWE date/time
window), System shall
calculate the make-whole
RTM hourly prices for RTM
incremental import and
decremental export interties
as the positive difference
between:
HASP Block Intertie
Schedule bid, and
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
Relevant hourly average
FMM LMPs for the
applicable Trading Hour.
SUMR21- Provide Make-Whole Core Settlements
BRQ350 Payment for RTM
Incremental Import and
Decremental Export
Interties during Tight
System Conditions
During tight system
conditions (AWE date/time
window), and for each HASP
block intertie incremental
import or decremental export
schedules, System shall
calculate make-whole
payment as the
multiplication of:
Calculated FMM Make-
Whole Energy
(SUMR21-BRQ330),
and
Calculated Hourly Make-
Whole RTM Prices
(SUMR21-BRQ340).
SUMR21- Exclusion of Import and Core Settlements
BRQ360 Export Interties from
Make-Whole Payment
during Tight System
Conditions
During tight system
conditions (AWE date/time
window), System shall
exclude any import or export
resources/transaction ids
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
from receiving make-whole
payment that are subject to:
HASP reversal rules,
or
Intertie deviation
settlement rules.
SUMR21- Distribution of Make Core Settlements
BRQ365 Whole Payment to
Appropriate BAAs
On dispatch interval basis,
system shall calculate HASP
Make-Whole cost transfer
allocation amount as:
HASP Make Whole
Amount * CISO BAA Net
Transfer Out Quantity
MW / (CISO BAA Net
Transfer Out Quantity
MW + CISO Measured
Demand).
Allocate Make-Whole
SUMR21- Core Settlements
Uplift Cost to CAISO
BRQ370
Measured Demand or EIM
Entity during Tight System
Conditions
During tight system
conditions (AWE date/time
window), System shall be
updated to:
Allocate HASP Make-
Whole Transfer Amount
to EIM Entities in
proration of their Net
BAA EIM Transfers In
Quantity over Total Net
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
EIM Transfer In
Quantity.
Allocate the remaining
Make-Whole Costs to:
o CISO measured
demand less
valid and
balanced ETCs,
TORs or
Converted Rights
Self-Schedules.
o MSS Aggregation
Net Measured
Demand, for
MSS that have
elected net
settlement.
o Net negative
deviation, for
Load following
MSSs.
Capability to Suspend
SUMR21- Core Settlements
Make-Whole Payment Rule
BRQ390
Provisions during Tight
System Conditions
System shall provide the
capability to configuration
users to suspend the entire
make-whole payment rule
provisions during tight
system conditions if CAISO
assessed that there are
adverse market outcomes
resulting from that rule.
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5.4 Business Process: Manage RTM Real-Time Price Enhancements
5.4.1 Business Requirements
Requirement Potential
ID# Business Feature Type Application(s)
Impacted
Identification of Tight System
SUMR21- Core RTM
Conditions
BRQ440
System shall provide ISO
operators the capability to
specify date/time window for
tight system conditions (AWE
date/time window) for current
calendar day and next
calendar day via UI.
The operator entered AWE
date/time window shall cover
date/time (expanded to top of
the hour) of any combinations
of the following:
o DA alert notice issued
by 3 p.m. in the day
before an operating
day that states the
CAISO anticipates an
operating reserve
deficiency for specified
hours.
o A Warning notice or
emergency stage 1-3
in real-time during an
operating day that
states the CAISO
anticipates or is
experiencing an
operating reserve
deficiency during
specified hours.
There shall be at most one
contiguous AWE date/time
window per a calendar day.
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
Release of All Applicable
SUMR21- Core RTM
(Contingent & non-Contingent)
BRQ450
Operating Reserves at the Bid
Cap Price
For the specified AWE
date/time window and if the
ISO operators triggered one of
the below functionalities,
system shall release
applicable (contingent & non-
contingent) operating reserve
capacities at the bid cap price
for all passes of RTM for
either:
o Flag In All, or
o Flag In Non-Spin
For the specified AWE
date/time window and if the
ISO operators triggered one of
the below functionalities,
system shall reset the release
of applicable (contingent &
non-contingent) operating
reserve capacities for all
passes of RTM for the
corresponding triggered
functionalities in the previous
bullet:
o Flag Out All (if Flag In
All was triggered), or
o Flag Out Non-Spin (if
Flag In Non-Spin was
triggered)
Note:
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
Outside AWE date/time
window, existing functionalities
shall persist.
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5.5 Business Process: Manage DAM and RTM Reliability Demand Response
Resource (RDRR) Dispatch and Real-time Price Impacts
Incorporate the RDRR/PDR dispatch into load forecast ALFS: ALFS, DAM/RTM.
Define RDRR 60-, 15-, 5-minute resource.
Dispatch RDRR in RTPD and RTD, 60-minute RDRR is price taker.
Operator activates function that enable 15-minute and 5-minute RDRR dispatch, then
market will allow 15-minute and 5-minute RDRR set the price.
Allow RDRR bid in RTM, spread MW between 95%-100% of soft bid cap, to send price
signals if RDRR set price.
5.5.1 Business Requirements
Requirement Potential
ID# Business Feature Type Application(s)
Impacted
SUMR21- Incorporate the RDRR and PDR market Core ALFS
BRQ505 award into market load forecast
The forecast interval shall be
aligning RTPD and RTD binding
and advisory awards intervals.
Base ALFS load forecast: For the
forecast interval, system shall
perform base ALFS forecast
(regular load following forecast).
Market load forecast: Add back the
latest RDRR and PDR binding and
advisory awards to the base ALFS
load forecast to produce market
load requirement forecast.
Publish Base ALFS load forecast
and market load forecast.
Define RDRR 60, 15, 5-minute resource
SUMR21- Core Master File
BRQ520
System shall define an eligible RDRR
resource, in the same manner as PDR, for
60-minute RDRR or
15-minute RDRR or
5-minute RDRR
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
Set RDRR Pmin in MF
SUMR21- Existing Master File
BRQ522
Set Discrete RDRR Pmin and Non-
discrete RDRR Pmin in the same manner
as regular generation resource.
Require RDRR bid in RTM
SUMR21- Existing SIBR, RTM
BRQ525
Require RDRR bid in RTM, between 95%
-100% of soft bid cap.
60 minute RDRR dispatch
SUMR21- Core HASP
BRQ530 Commit and Dispatch 60-minute
RDRR in HASP, same way as for
60-minute PDR.
Hold the RDRR HASP dispatch in
subsequent RTPD and RTD.
60-minute RDRR is a price takers,
cannot set the price in RTPD and
RTD.
15-minute and 5-minute RDRR
SUMR21- Core RTPD
resource dispatch in RTPD
BRQ535
Commit and Dispatch 15, 5-minute
RDRR in RTPD, same way as for
15-minute PDR, will account for
RDRR’s start-up and minimum run
times.
Hold the RDRR RTPD dispatch in
subsequent RTD.
If the operator does enable the
RDRR dispatch button, RDRR
resource is optimally dispatched
and RDRR is allowed to set price
in RTPD even if it is discrete.
If the operator does not enable the
RDRR dispatch button, 15-minute
RDRR resource cannot set price in
RTPD.
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
5-minute RDRR dispatch in RTD
SUMR21- Core RTD
BRQ538
If the operator enables the RDRR
dispatch button, 5-minute RDRR
resource is optimally dispatched
and RDRR is allowed to set price
in RTPD.
If the operator does not enable the
RDRR dispatch button, 15-minute
RDRR resource cannot set price in
RTPD.
SUMR21- Enable/Disable RDRR for all, region or Core RTPD, RTD
BRQ540 subregion
Operator action:
Specify start/end time for selected
regions: all, region and subregion.
Click RDRR dispatch Enable
button for selected RDRR
region(s) to Enable RDRR in the
Region(s) or subregion(s).
Click Disable to cancel Enable.
SUMR21- Allow RDRR set price: Core HASP, RTPD,
BRQ545 RTD
If operator enables the RDRR dispatch
function:
System shall allow RDRR to set the price:
Discrete RDRR (hourly, 15-min, or
5-min) shall be treated as on/off at
Pmax in the scheduling run
(STUC, HASP, FMM, or RTD), but
in the pricing run with a zero Pmin
as non-discrete, allow RDRR to
set the price.
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Requirement Potential
ID# Business Feature Type Application(s)
Impacted
For non-discrete RDRR, use bid
curve submitted by SC run in
schedule run and pricing run, and
allow RDRR to set the price.
Settlement:
SUMR21- Existing Settlements
BRQ590 Same as PDR, exclude BCR for Function
Hourly RDRR.
Same as PDR, include BCR for 15-
minute RDRR.
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5.6 Business Process: Manage OASIS Reports and Planning
New OASIS report showing gross exports and imports by intertie
5.6.1 Business Requirements
Requireme Potential
nt Type Application(
ID# Business Feature s)
Impacted
SUMR21- System shall publish gross import/export Core IFM, RTPD,
BRQ700 by tie by BAA for CAISO: RTD
Calculate schedule by tie and by import
and export direction by BA.
Publish gross import and export by tie
and by direction for CAISO BAA only.
SUMR21- Report gross exports and imports by Core OASIS
BRQ710 intertie for CAISO:
Report the schedule breakdown by tie by
direction for CAISO for IFM, RUC, RTPD
and RTD.
Allow user to view and download the
report in the same manner as the report
EIM transfer by tie.
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Appendix-A – Acronym Definition
Acronym Definition
A2A Application-to-Application
ABC Available Balancing Capacity
ACL Access Control List
ADS Automatic Dispatch System
AGC Automatic Generation Control
AIM Access and Identity Management
ALFS Automated Load Forecast System
Anode Aggregate Node
API Application Program Interface
Apnode Aggregate Pricing Node
AS Ancillary Services
AUX Auxiliary
AWE ISO Alerts, Warnings and Emergencies (AWE)
B2B Business-to-Business
BA Business Analyst
BAA Balancing Authority Area
BAAOP Balancing Authority Area Operations Portal
BCR Bid Cost Recovery
BPM Business Process Manual
BRS Business Requirement Specifications
BSAP Base Schedule Aggregation Portal
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Acronym Definition
BSC Base Schedule Coordinator
CAISO California Independent System Operator
CB Convergence Bidding
CC Commitment Cost
CCDEBE Commitment Costs and Default Energy Bid Enhancements
CDN Conformed Dispatch Notice
CIM Common Information Model
CIP Critical Infrastructure Protection
CIRA Customer Interface for Resource Adequacy
CISO California Independent System Operator
CMRI Customer Market Results Interface
Cnode Connectivity Node
COG Constrained-Output Generator
CPM Capacity Procurement Mechanism
CRN Contract Reference Number
CRR Congestion Revenue Rights
CRRS Congestion Revenue Rights Settlements (aka CRR Clawback system)
CSS Critical Systems Support
DA Day-Ahead
DACA Day-Ahead Contingency Analysis
DAM Day-Ahead Market
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Acronym Definition
DART Day-Ahead Reliability Tool
DCPA Dynamic Competitive Path Assessment
DEB Default Energy Bid
DCC Default Commitment Cost
DGAP Default Generation Aggregation Point
DMLC Default Minimum Load Cost
DMM Department of Market Monitoring
DOP Dispatch Operating Point
DOT Dispatch Operating Target
DSA Dynamic Stability Analysis
DSTC Default State Transition Cost
DSUC Default Start Up Cost
ECIC Energy Costs and Index Calculator
ED Exceptional Dispatch
EDAM Extended Day-Ahead Market
EDR Enterprise Data Repository
EE Expected Energy
EEA Expected Energy Allocation
EESC Energy Imbalance Market Entity Scheduling Coordinator
EFC Effective Flexible Capacity
EIM Energy Imbalance Market
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Acronym Definition
EIMNPR Energy Imbalance Market Non-Participating Resource
EIMPR Energy Imbalance Market Participating Resource
EMM Enterprise Model Management
EMMS Enterprise Model Management System
EMNA Energy Management Network Application
EMS Energy Management System
EOH End Of Hour
EPI Electricity Price Index
ESL Energy Storage Limit (in MWh)
ESP Electronic Security Perimeter
ETC Existing Transmission Contract
ETSR Energy Transfer System Resources
FERC Federal Energy Regulatory Commission
FMCA Fifteen-Minute Contingency Analysis
FMM Fifteen-Minute Market
FMU Frequently Mitigated Unit
FNM Full Network Model
FODD FERC Outgoing Data Depository
FRD Flexible Ramp Down
FRU Flexible Ramp Up
GDF Generation Distribution Factor
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Acronym Definition
GHG Green House Gas
GIP Generator Interconnection Procedure
GMC Grid Management Charge
GPI Gas Price Index
GRDT Generator Resource Data Template
GUI Graphical User Interface
HASP Hour-Ahead Scheduling Process
HAVGC Heat Average Cost (for non-gas resources)
HR Heat Rate
IAIQ IT Architecture, Integration and QA
ICE InterContinental Exchange
ICM Infrastructure Contracts and Management
ID Identifier
IFM Integrated Forward Market
ISL Intertie Scheduling Limit
ISO California Independent System Operator
IOOC Integrated Optimal Outage Coordination
IT Information Technology
ITC Inter-Tie Constraint
ITPD Information Technology Product Development
ITPM Information Technology Product Management
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Acronym Definition
ITS Interchange Transaction Scheduler
JOU Joint Owned Unit
LACA Look-Ahead Contingency Analysis
LEL Lower Economic Limit
LMP Locational Marginal Price
LMPM Locational Market Power Mitigation
LOL Lower Operating Limit
LRA Local Regulatory Authority
LSE Load Serving Entity
LTCA Long-Term Contingency Analysis
MCI Model and Contract Implementation
MD Manual Dispatch
MDT Minimum Down Time
MDS Maximum Daily Startups
MF Master File
MLAC Minimum Load Average Cost
MLC Minimum Load Cost
MLHAVGC Minimum Load Heat Average Cost (for non-gas resources)
MLHR Minimum Load Heat Rate
MMA Major Maintenance Adder
MMAMLC Major Maintenance Adder for Minimum Load Cost
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Acronym Definition
MMASUC Major Maintenance Adder for Start Up Cost
MMG Manage Markets & Grid
MMR Manage Market & Reliability
MOS Manage Operations Support & Settlements
MPM market Power Mitigation
MQS Market Quality System
MRID Master Resource Identifier
MRI-S Market Results Interface – Settlements
MSS Metered Sub System
MSSA Metered Sub System Agreement
MSG Multi-Stage Generator
MSOC Minimum State Of Charge
MUT Minimum Up Time
MV&A Market Validation & Analysis
MVT Market Validation Tool
N/A Not Applicable
NA Network Application
NDEB Negotiated Default Energy Bid
NGR Non-Generating Resource
NM Network Model
NQC Net Qualifying Capacity
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Acronym Definition
OASIS Open Access Same-time information System
OATI Open Access Technology International
OC Opportunity Cost
OCC Opportunity Cost Calculator
ODCP On Demand Capacity Procurement
OES Operations Engineering Services
OMS Outage Management System
OTS Operations Training Simulator
PAM Program and Application Management
PBC Power Balance Constraint
PC Pre-Calculation
PCA Price Correction Admin
PCT Price Correction Tools
PDR Proxy Demand Resource
PI Plant Information
PL Participating Load
Pmax Maximum Generation Capacity
Pmin Minimum Generation Capacity
PMO Program Management Office
PNM Public New Mexico
Pnode Pricing Node
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Acronym Definition
POC Point Of Contact
PRSC Participating Resource Scheduling Coordinator
PSH Pump Storage Hydro
PSTD Power Systems Technology Development
PSTO Power Systems Technology Operations
PTO Participating Transmission Owner
QRB Quality Review Board
RA Resource Adequacy
RC Reliability Coordinator
RC-BSAP Reliability Coordinator - Base Schedule Aggregation Portal
RCD Reliability Capacity Down
RCSA Reliability Coordinator Service Agreement
RCU Reliability Capacity Up
RDRR Reliability Demand Response Resource
RDT Resource Data Template
RIG Remote Intelligent Gateway
RIMS Resource Interconnection Management System
RMR Reliability Must Run
ROPR Operating Reserve Ramp Rate
RR Ramp Rate
RREG Regulation Ramp Rate
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Acronym Definition
RT Real-Time
RTBS Real-Time Base Scheduler
RTCA Real-Time Contingency Analysis
RTCD Real-Time Contingency Dispatch
RTD Real-Time Dispatch
RTPD Real-Time Pre-Dispatch
RTM Real-Time Market
RTUC Real-Time Unit Commitment
RUC Residual Unit Commitment
SADS System And Design Specifications
SAMQ Security, Architecture, Model Management & Quality
SC Scheduling Coordinator
SCME Scheduling Coordinator Meter Entity
SE State Estimator
SIBR Scheduling Infrastructure and Business Rules
SME Subject Matter Expert
SOA Service-Oriented Architecture
SOC State Of Charge
SQMD Settlements Quality Meter Data
SRS System Requirement Specifications
STC State Transition Cost
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