July 2014

JULY 2014

Debbie CookeDEMAND RESOURCE ADMINISTRATION

Process Update July 2014

Demand Response Scheduled & Forced Curtailments

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

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• Discussed at April DRWG:

• But what about?

Process

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Pre-Curtailment (Scheduled)Post-

Curtailment

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

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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

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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

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• Curtailments are per asset, not facility

• Other assets at the facility should submit meter data during the curtailment

Unadjusted Baseline Data Submittal

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Asset Baseline Type Data SubmittalTotal Facility Load(TFL)

UBL submitted on the load channel

Facility Metered Load(FML)

UBL submitted on the load channel

Distributed Generation(DG)

UBL submitted on the generation channel

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

8MR-1, III.8A.4.4

Recap – Scheduled CurtailmentsMarket Participant Responsibilities

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Requirement Timing ProcessNotification Assets with MIC < 5

MW: 7 calendar days

Assets >= 5 MW: 15 calendar days

Submit Scheduled/Forced Curtailment Form via Service Note

Meter Data Curtailment Period No MR-1, III.13 Event during Curtailment Period:• Unadjusted Baseline values calculated for first

day of curtailment as data correction via DRMUIMR-1, III.13 Event during Curtailment Period:• Actual meter data for event intervals• Unadjusted Baseline from first day of curtailment

for all non-event intervals via DRMUI

Demand Reduction Offers

Curtailment Period Prohibited from submitting offers for an Operating Day with a scheduled curtailment

MR-1, III.8A.5; App. E1

Recap – Forced CurtailmentsMarket Participant Responsibilities

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Requirement Timing ProcessNotification Prior to Data

Reconciliation Deadline for the month

Submit Scheduled/Forced Curtailment Form via Service Note

Meter Data Curtailment Period No MR-1, III.13 Event during Curtailment Period: Unadjusted Baseline values calculated for first day of curtailment via DRMUINo MR-1, III.13 Event during Curtailment Period, or unanticipated and DA Cleared/RT Eligible :• Actual meter data for event intervals• Unadjusted Baseline from first day of curtailment

for all non-event intervals via DRMUI

Demand Reduction Offers

Curtailment Period Prohibited from submitting offers for an Operating Day with a known forced curtailment

MR-1, III.8A.5; App. E1

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