Proposed Revision Request Detail Help
PRR Life Cycle*******Final Decision**
PRR Details
Title To support the slow demand response enhancement, documentation changes to include business rule for comparing resource locational marginal price to day ahead bid price for slow demand response resources in cases where exceptional dispatch type of non t-mo
Date Submitted 10/28/2020 12:23 PM
PRR Category A
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 6470 Real Time Instructed Imbalance Energy Settlement
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Existing Language
 See BPM attached to this PRR
Proposed Language
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Reason For Revision

Updated CC 6470 Real Time Instructed Imbalance Energy Settlement to align with ISO commitment to operationalizing “slow DR” such that they can be useful as a local RA resource. “Slow” demand response resources are those that cannot fully respond within 20 minutes post-contingency. NERC standards and the ISO tariff specify a maximum manual adjustment time of 30 minutes after a first contingency event for the ISO to prepare the system for a subsequent contingency. Based on operational experience, the ISO has determined that ISO operators need 10 minutes to identify the contingency and assess the problem, identify a solution, and then redispatch the system, which means full resource response must occur within 20 minutes post-contingency. Because slow Proxy Demand Resources (PDRs) cannot respond within 20 minutes post-contingency, the ISO must dispatch them prior to a contingency, i.e. pre-contingency, to ensure the system can be repositioned within 30 minutes after the potential contingency event.


CC 6470 Real Time Instructed Imbalance Energy Settlement to include the business rules that account for this dispatch using the NonTModel Exceptional Dispatch Type, which result to a document only change and utilizing current active settlement configuration


11/17/2020 update     

The effective date of the change is 12/16/2020 and the anticipated implementation date is 12/16/2020.

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BPM PRR Submitter

Corona, Brenda (CAISO)
Modified BPM language proposed by the PBM Chnage Management Coordinator

The ISO proposes additional 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

Per posted Announcement from 11/17/20
Effective date changed to 12/16/2020 as communicated in the Release User Group.
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 12/16/2020 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

The solid effective date will be 12/16/2020 as communicated in the Release User Group.
Posted On - 11/17/2020 11:38 AM
Impact Analysis
Initial Comments
No Initial Comments available for this PRR.
Recommendation Comments
No Recommendation Comments available for this PRR.
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