What is Day-Ahead NCPC?
Net Commitment Period Compensation (NCPC) is the "make whole" payment to an eligible generator and/or external transaction that did not recover its offered costs from the Energy Market during an operating day. NCPC is determined by comparing the participant's energy offer costs with its actual revenue from the market for the day. Day-Ahead NCPC is calculated for resources scheduled by ISO New England in the Day-Ahead Market. If the resource does not fully recover its Day-Ahead offer costs through the Day-Ahead Energy Market, a Day-Ahead NCPC payment will provide the cost recovery. Self-Scheduled generation is not eligible for NCPC. The complete set of rules for NCPC eligibility is detailed in Market Rule 1, Appendix F.
In what document(s) do I find details about the Day-Ahead NCPC Market?
Who can expect to incur a Day-Ahead NCPC Credit or Charge?
Market participants with an ownership share in a resource that the ISO schedules in the Day-Ahead Market and/or an external transaction cleared in the Day-Ahead Market, where the energy offer costs exceed the actual revenue from the market for the day.
Charges for Day-Ahead NCPC are allocated based on NCPC category. The NCPC categories are determined by the reason for the commitment of the resource that was paid NCPC in the Day-Ahead Market.
Charges are allocated to Market Participants based on Day-Ahead Load Obligation.
Local Second Contingency Protection Resource (LSCPR) NCPC
Charges are allocated to Market Participants based on Real-Time Load Obligation for the applicable Reliability Region.
Charges are allocated to Market Participants based on Network Load and OASIS reservations.
Regional High Voltage VAR
Charges are allocated to Market Participants based on Network Load for the applicable Reliability Region.
External Transaction NCPC
Charges for imports are allocated to Market Participants based on Day-Ahead Load Obligation at the applicable External Node. Charges for exports are allocated to Market Participants based on Day-Ahead Generation Obligation at the applicable External Node.
Related Standard Settlements
Related Billing Adjustments
The hourly services bill display contains a single line item netting charges and credits entitled "Day-Ahead NCPC". Economic, LSCPR, and External Transaction NCPC charges and credits are included in the hourly services bill. The monthly bill contains a single line item netting charges and credits entitled "OATT Schedule 2 VAR". This line item includes VAR NCPC and Regional High Voltage VAR NCPC charges and credits, as well as charges and credits associated with other VAR service as described in OATT-Schedule 2 VAR.
Day Ahead Net Commitment Period Compensation Payment Report
SD_DANCPCPAYMENT Hourly detail of Participant's credits by asset and external transaction, issued upon settlement of Market Day.
Day Ahead Unit Operations Report - Settlement Details
SD_DAUNITOP Hourly detail of Participant's generating asset operating data , issued upon settlement of Market Day.
Day Ahead Net Commitment Period Compensation Settlement Summary Report
SR_DANCPCSTLSUM Summary of Participant's daily Day-Ahead NCPC charges and credits, issued upon settlement of Market Day.
Daily Financial Position Report
BL_DAILYPOSITION Daily financial position including all market service settlements and miscellaneous billing adjustments generated on a daily basis; and, issued to all active customers registered as a Participant or Non-Participant.
Related Calculation Summary
Day-Ahead NCPC is reported on the SP_EQR report, available on a monthly basis one month after the given settlement, as referenced in the FERC EQR mapping line item NCPC - Day Ahead.