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Home > Stay Informed > Stakeholder Processes > Energy Storage and Distributed Energy Resources

​Energy storage and distributed energy resources

The focus of this initiative is on enhancing the ability of ISO connected and distribution-connected resources to participate in the ISO market, including rooftop solar, energy storage, plug-in electric vehicles, and demand response. These resources represent an increasingly important part of the future resource mix and will help lower carbon emissions and provide operational benefits.

 

Initiative status

Phase 3
Tariff development: pending
Board of Governors approval: September 5, 2018

Phase 2 Completed

Phase 1 Completed 

 

Market notices

Phase 3

Phase 3 will continue to identify and evaluate opportunities for increased participation of transmission grid-connected energy storage and distribution-connected resources in the ISO market.  Topics suggested by stakeholders in the ESDER Phase 2 initiative will also be addressed in this phase.

Notice of decisional classification

This Notice provides the ISO Board of Governors Chair and the EIM Governing Body Chair with Management's proposed decisional classification for a policy initiative, e.g., whether the initiative falls within the primary authority of the EIM Governing Body or its advisory role. This notice requirement is described in the Guidance for Handling Policy Initiatives- EIM Governing Body.

Policy development

Completed initiatives

Phase 2

Effective November 1, 2018, this initiative provided three new types of demand response performance evaluation methods, clarified Station Power treatment for storage resources, and incorporated additional gas indices into the net benefits test calculation to reflect all real-time participation regions. The enhancements are anticipated to lower barriers and enhance the ability of energy storage and distributed energy resources to participate in the ISO market. The Phase 2 policy allowed for baselines to be performed and submitted by scheduling coordinators, resulting in all remaining demand response system (DRS) functionalities to be integrated into MRI-S (Market Results Interface – Settlements) and decommissioning of the DRS.
Implemented: November 1, 2018
FERC approval: October 24, 2018
Tariff amendment filing: May 18, 2016
Board of Governors approval: July 26, 2017
  • Energy storage and distributed energy resources phase 2
    • Aug 17, 2018 Tariff amendment - energy storage and distributed energy resources phase 2 enhancements (ER18-2242)
    • Energy storage and distributed energy resources phase 2 - implementation
    • Energy storage and distributed energy resources phase 2 - papers and proposals
    • Energy storage and distributed energy resources phase 2 - decisional classification
    • Energy storage and distributed energy resources phase 2 - tariff language
    • Energy storage and distributed energy resources phase 2 - relevant market notices
    • Energy storage and distributed energy resources phase 2 implementation customer partnership group
    • Energy storage and distributed energy resources phase 2 - working group

 

Phase 1

Phase 1 enhanced the ability of grid-connected storage and distribution-connected resources to participate in the ISO market. Improvements included the ability for submitting the state of charge as a daily bid parameter in the day-ahead market, as well as an option to not provide state of charge limits or not have the ISO co-optimize non-generator resources based on state of charge.
Implemented: Fall 2016
FERC approval: August 16, 2016
Tariff amendment filing: May 18, 2016
Board of Governors approval: February 3, 2016