RSS Feed for Proposed Revision Request - 1547

PRR - 1547

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Initial Comment for PRR - 1547

Description: Please see attached for PG&E's comments on PRR1547.
-By MichaelVolpePGE (Pacific Gas & Electric Company) on Tuesday, February 13, 2024 10:04:31 AM

Response: The ISO is addressing two items with this PRR. First, when the Energy Storage Enhancements Track 1 project went to production on July 1, 2023 the logic for the time index for the State-of-Charge (SOC) term in the A/S SOC constraint formulation changed to the first advisory interval instead of the first binding interval but the indication of an uneconomic dispatch related to an A/S SOC constraint did not also change. Second, the ISO determined that because all advisory intervals in a market run have the ability to drive an uneconomical dispatch of the storage resource in the financially-binding interval when the storage resource has an Ancillary Service schedule within the market horizon, the A/S SOC constraint should also indicate these uneconomical dispatches that were necessary to meet future Ancillary Service schedules. Per Tariff Section 11.6.6, the ISO is required to detect when storage resources are uneconomically dispatched to have sufficient SOC to meet Ancillary Service schedules and make the storage resource ineligible for RTM Bid Cost Shortfalls. -- Yannick Degeilh and Jennie Araj
-By Martin, Michael on Wednesday, February 21, 2024 5:24:03 PM

Initial Comment for PRR - 1547

Description: Please see attached comments by Terra-Gen, LLC.
-By Chris Devon (Terra-Gen, LLC) on Tuesday, February 13, 2024 2:15:32 PM

Response: The ISO is addressing two items with this PRR. First, when the Energy Storage Enhancements Track 1 project went to production on July 1, 2023 the logic for the time index for the State-of-Charge (SOC) term in the A/S SOC constraint formulation changed to the first advisory interval instead of the first binding interval but the indication of an uneconomic dispatch related to an A/S SOC constraint did not also change. Second, the ISO determined that because all advisory intervals in a market run have the ability to drive an uneconomical dispatch of the storage resource in the financially-binding interval when the storage resource has an Ancillary Service schedule within the market horizon, the A/S SOC constraint should also indicate these uneconomical dispatches that were necessary to meet future Ancillary Service schedules. Per Tariff Section 11.6.6, the ISO is required to detect when storage resources are uneconomically dispatched to have sufficient SOC to meet Ancillary Service schedules and make the storage resource ineligible for RTM Bid Cost Shortfalls. -- Yannick Degeilh and Jennie Araj
-By Martin, Michael on Wednesday, February 21, 2024 5:23:06 PM

Announcement for PRR - 1547

Description: The ISO is addressing two items with this PRR. First, when the Energy Storage Enhancements Track 1 project went to production on July 1 2023, the time index for the State-of-Charge (SOC) term in the A/S SOC constraint formulation changed in such a way that the first advisory interval (instead of the financially-binding interval) should be checked for binding A/S SOC constraints in the effort to flag uneconomic dispatch related to A/S SOC constraints. Second, the ISO determined that because all advisory intervals in a market run have the ability to drive an uneconomical dispatch of the storage resource in the financially-binding interval when the storage resource has an Ancillary Service schedule within the market horizon, the A/S SOC flag (as published in CMRI under “Real-Time -> Market Active Resource Constraints”) should also indicate these uneconomical dispatches that were necessary to meet future Ancillary Service schedules. Per Tariff Section 11.6.6, the ISO is required to detect when storage resources are uneconomically dispatched to have sufficient SOC to meet Ancillary Service schedules and make the storage resource ineligible for RTM Bid Cost Shortfalls.
-By Martin, Michael on Friday, March 1, 2024 10:24:38 AM

Recommendation Comment for PRR - 1547

Description: Please see CAISO responses to PG&E's comments attached.
-By MichaelVolpePGE (Pacific Gas & Electric Company) on Tuesday, March 12, 2024 10:07:02 AM

Announcement for PRR - 1547

Description: Please see CAISO's responses to PGEs comments in the document "PRR1547_PGE_Comments final.docx"
-By Martin, Michael on Friday, March 29, 2024 12:58:04 PM

Recommendation for PRR - 1547

Proposed Language:

Approve the BPM PRR as submitted.

Apparent Requirement: NA
Priority: NA
Action: Approve the BPM PRR as submitted
Effective Date:
Other Actions: NA

Final Decision for PRR - 1547

Final Decision: Approve as issued.
Stakeholder Comment: CAISO provided responses to PGEs comments.
Action: Adopt the recommendation as originally issued
Effective Date: 01/01/0001