July 2014

1. July 2014 Debbie Cooke DEMAND RESOURCE ADMINISTRATION Process Update July 2014 Demand Response Scheduled & Forced Curtailments

2. Background • Enhancements to the DR baseline calculations became effective June 1, 2014 • Allows scheduled and forced curtailments of Real-Time Demand Response and Real-Time Emergency Generation assets • DR assets can preserve their baseline by submitting unadjusted baseline values during intervals of a forced or scheduled curtailment • As of July 15, ISO New England has received approximately 50 curtailment requests

3. Process • Discussed at April DRWG: • But what about? Post-Curtailment Pre-Curtailment (Scheduled)

4. Modification and Cancellation Guidelines • Scheduled curtailments only • Forced curtailments are submitted after the fact, so modifications/cancellations are unnecessary • Modification: A later curtailment start date (same end date) or earlier end date (same start date) • A change that results in a totally different date range will be treated as a cancellation and a new curtailment request • Cancellation: Entire curtailment changed or removed • Submitted through a service note • Notification should be prior to start date of scheduled curtailment

5. Reminders – Scheduled Curtailments • For days during the scheduled curtailment: • Do not submit Day Ahead Offers for any days during the curtailment and remove any existing offers that may be carried forward • Adjust Resource availability • DRMUI, Navigation > Hourly Resource Availability • Submit Unadjusted Baseline values for all intervals during the curtailment unless there’s a dispatch pursuant to MR-1, III.13 (OP-4 or audit) • Submit actual meter data during OP-4/audit dispatch intervals

6. Reminders – Forced Curtailments • For days with an anticipated forced curtailment: • Do not submit Day Ahead Offers and remove any existing offers that may be carried forward for Operating Days with an anticipated forced curtailment • Adjust Resource availability • DRMUI, Navigation > Hourly Resource Availability • Submit Unadjusted Baseline values for all intervals during the curtailment unless: • there’s a dispatch pursuant to MR-1, III.13 (OP-4 or audit), or • the asset had cleared day-ahead or become eligible in real-time pursuant to MR-1, Appendix E1 on a day with an unanticipated forced curtailment • Submit actual meter data during those intervals

7. Unadjusted Baseline Data Submittal • Curtailments are per asset, not facility • Other assets at the facility should submit meter data during the curtailment

8. What about Facilities With Distributed Gen or Multiple Assets Behind the Same Retail Meter? • Questions received regarding the impact on performance if: • A Distributed Generation asset is dispatched during a curtailment • A facility with multiple assets behind the same retail meter is dispatched • M-MVDR and MR-1 modified to allow metering at the RDP for an asset comprised of both generation and load • Existing assets at a facility can be aggregated into one • Metered demand at the RDP is used to compute the baseline and determine asset performance MR-1, III.8A.4.4

9. Recap – Scheduled CurtailmentsMarket Participant Responsibilities MR-1, III.8A.5; App. E1

10. Recap – Forced CurtailmentsMarket Participant Responsibilities MR-1, III.8A.5; App. E1