Proposed Revision Request Detail Help
PRR Life Cycle*******Final Decision**
PRR Details
Title To support the excess behind the meter production initiative, configuration enhancements to account for new energy measurement type excess behind the meter production and to settle charges to non-participating load.
Date Submitted 10/28/2020 1:12 PM
PRR Category B
Priority Normal
Owner Corona, Brenda (CAISO)
Status Final Decision
Status End Date 1/5/2021 11:59 PM
Related BPM Settlements and Billing
BPM Section CG CC 6046 Over and Under Scheduling EIM Allocation
CG CC 6474 Real-Time Unaccounted for Energy Settlement
CG CC 6788 Real Time Market Congestion Credit Settlement
CG PC Ancillary Services
CG PC Measured Demand Over Control Area Excl MSS Energy
CG PC Measured Demand Over Control Area
CG PC MSS Deviation Penalty Quantity
CG PC MSS Netting
CG PC Real Time Energy Quantity
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Existing Language
See BPM attached to this PRR
Proposed Language
See BPM attached to this PRR
Reason For Revision

The frequency and magnitude of excess behind the meter production (EBTMP) – periods when a customer’s behind the meter resources generate output above host load – are increasing as more behind the meter resources are integrated into the system. The treatment of EBTMP directly impacts downstream financial settlement allocations based on Gross Load figures that scheduling coordinators submit to the ISO. Because of these settlement impacts, it is critical that scheduling coordinators report Gross Load values to the ISO in a consistent manner.

This initiative aims to address the issue of excess behind the meter production reporting because some entities are reporting Gross Load to the ISO by netting the EBTMP and others are reporting without netting the EBTMP. In order to enforce consistent reporting, the ISO will clarify the tariff definition of Gross Load and establish a new tariff definition for EBTMP, and it will specify how EBTMP will be reported to the ISO. The determination for Unaccounted for Energy has also been updated.

The effective date of the changes is 1/1/2021 and the anticipated implementation date is 9/29/2020.
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BPM PRR Submitter

Corona, Brenda (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

No comments were received.

Approve the BPM PRR as submitted

Statement of apparent requirements of the BPM PRR

This BPM PRR contains basic language changes.
Priority and rank for any BPM PRR requiring a CAISO system change

There are system changes associated with this PRR. The system changes are planned for implementation on 12/15/2020 on a normal basis.
Proposed effective date(s) of the BPM PRR

The ISO proposes an effective date of 1/1/2021 for the BPM revisions.
Other recommended actions

The ISO does not recommend any other actions on this BPM PRR.
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Final Decision

The ISO will adopt the BPM change as proposed in the recommendation.
Stakeholder Comment

No comments submitted.

Effective Date


Adopt the recommendation as originally issued

No Announcements has been posted for this PRR.
Impact Analysis
Initial Comments
No Initial Comments available for this PRR.
Recommendation Comments
No Recommendation Comments available for this PRR.
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