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Proposed Revision Request Detail Help
PRR Life Cycle*********Closed
PRR Details
PRR #
1445
Title Updates to the list of acceptable use limitations, clarifications to the calculation of opportunity cost adders for use-limited resources
Date Submitted 6/1/2022 9:04 AM
PRR Category A
Priority Normal
Owner Martin, Michael (CAISO)
Status Closed
Status End Date 9/14/2022 11:59 PM
Related BPM Market Operations
BPM Section Market Operations: Section 2.1.15
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Existing Language
 

​See Attached

Proposed Language
 

​See Attached

Reason For Revision
 
Updates to the list of acceptable use limitations, clarifications to the calculation of opportunity cost adders for use-limited resources, and minor editorial changes.
Click here to view the Recommendation Details for this PRR
BPM PRR Submitter

Martin, Michael (CAISO)
Modified BPM language proposed by the PBM Chnage Management Coordinator

​The ISO proposes no modified BPM language beyond that proposed in the BPM PRR.

Identification of the authorship of comments

NA
Action

Approve the BPM PRR as submitted

NA
Statement of apparent requirements of the BPM PRR

NA
Priority and rank for any BPM PRR requiring a CAISO system change

NA
Proposed effective date(s) of the BPM PRR

NA
Other recommended actions

A comment was received by SCE and was answered.
Click here to view the Final Decision for this PRR
Final Decision

Proceed with original
Stakeholder Comment

Two comments addressed during initial phase

Effective Date

9/15/2022
Action

Adopt the recommendation as originally issued

NA
Announcements
No Announcements has been posted for this PRR.
Impact Analysis
Impact Analysis not available.
Initial Comments
Q.  Without the ability to use “qualifying contractual limitations” as criteria for use limitations, what should PDR units utilize going forward to model their use limitations? Does the CAISO recognize PDR contract limits as “design considerations” or as “environmental restrictions”?

A.  Assuming that the appropriate documentation is submitted, PDRs can qualify for use limitations under the “design considerations” type. As noted in section 2.1.15.1.6 of the BPM for Market Operations, PDRs “… have design limitations due to programmatic limitations that refer to the maximum events or hours per a deliverability period for which customers are expected to be willing to curtail or deploy state of charge when called upon.” This designation was discussed and concluded upon in the Commitment Costs Enhancement – Phase 3 (CCE3) initiative and was carried into the BPMs at the implementation of CCE3 in 2019.

Q. The CAISO should explain the rationale behind the proposed change and the reason of proposing rules different than CAISO Tariff.

A.  There is no difference between the requirements from the CAISO Tariff and the clarifications of the tariff provided in the BPM for Market Operations. While Tariff section 30.4.6.1.1 does enumerate qualifying contractual limitations as an acceptable use limitation, it then goes on to explain that these limitations have a sunset date of: “Effective April 1, 2022, no contractual limitations will constitute qualifying contractual limitations that satisfy the requirements of this Section.” Thus, through this PRR, the CAISO is updating the BPMs to mirror the requirements of the Tariff.

--- Kevin Head  CAISO Sr. Market Engineering Specialist
7/6/2022 3:56 PM
Logged By - Martin, Michael (CAISO)
sce initial comment prr1445.pdf    
7/5/2022 8:51 AM
Logged By - Aditya Chauhan (SCE) (Southern California Edison)
Recommendation Comments
No Recommendation Comments available for this PRR.
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