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Revisions to ISO Tariff and Schedule 2: Electric Storage Facility Reactive Resources and Administrative Changes

This update proposes revisions to the ISO Tariff and Schedule 2, incorporating electric storage facility reactive resources and making administrative changes. The revisions aim to enhance participation of storage devices in the ISO Day-Ahead and Real-Time Energy Markets. Stakeholders are invited to participate in the vote.

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Revisions to ISO Tariff and Schedule 2: Electric Storage Facility Reactive Resources and Administrative Changes

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  1. May 16, 2019 | Westborough, ma Kory Haag (413) 535-4064 | khaag@iso-ne.com Revisions to Schedule 2 of Section II of the ISO Tariff and the Schedule 2 Business Procedure to include Electric Storage Facility Reactive Resources and Other Administrative Changes Schedule 2 VAR Capacity Cost Compensation Procedure Updates Revision 1

  2. Revision 1: Updated FERC letter order date • In October 2018, the ISO, joined by NEPOOL, filed with FERC proposed revisions to Section II of the Tariff that created multiple constructs for storage devices to fully participate in the ISO Day-Ahead and Real-Time Energy Markets • FERC accepted the revisions in a February 25, 2019, letter order • These Tariff revisions required evaluation of Reactive Capability Auditing and compensation provisions for storage devices • Related revisions to Section III.1.5.3 of the Tariff, OP-23, and OP-23 Appendix G to accommodate the introduction of ESFs as well as non-generator dynamic Reactive Resources are being discussed at the Reliability Committee • The proposed Schedule 2 and Schedule 2 Business Procedure revisions are scheduled for a requested vote at today’s meeting • The proposed effective date of these revisions is August 2019, following receipt of a FERC order accepting the proposed Tariff revisions • The Tariff revisions are scheduled to be filed in mid-to-late June with a requested effective date 60 days thereafter

  3. Schedule 2: • Updated language to use Economic Min (the term defined in the Tariff) • Schedule 2 Business Procedure: • Moved language regarding how a QRR not meeting voltage schedule is compensated into the “Modifications to CC Compensation” section • Modified language regarding QRR modification that requires auditing to reference timing requirements in OP-23 (6 months from the time the ISO informs the Reactive Resource Provider of requirement to audit)

  4. Proposed Schedule 2 Revision modifications since April 17, 2019

  5. Examples of Updates to Language to Use Tariff Economic Min Definition

  6. Proposed Schedule 2 business procedure Revision modifications since April 17, 2019

  7. Revisions to Schedule 2 Business Procedure

  8. Conclusion • The proposed changes to the Schedule 2 and the Schedule 2 Business Procedure • Move requirements from the Business Procedure into the Tariff • Incorporate Electric Storage Facility language into the Schedule 2 capacity cost compensation program • Update Schedule 2 Business Procedure language for defined terms, grammar, clarity, and reorganization of content • Add Schedule 2 Business Procedure Appendices B - CCCP Reactive Capability Waiver Request Form and C - QRR Termination Request Form from stand-alone forms • The proposed revisions are scheduled for a vote at today’s meeting • The proposed effective date of these revisions is August 2019, following receipt of a FERC order accepting the proposed Tariff revisions

  9. Stakeholder Schedule

  10. Kory Haag 413) 535-4064 | khaag@iso-ne.com

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