The Day-Ahead Market clearing process produces a schedule of financially binding energy commitments and ancillary services obligations that satisfies the load forecast and operating reserve requirements for an operating day. The Day-Ahead ancillary services have two distinct categories: Flexible Response Services (FRS) and Energy Imbalance Reserves (EIR). FRS obligations are cleared to meet the day’s operating reserve requirements and is comprised of three product types: Day-Ahead Ten Minute Spinning Reserve (DA TMSR), Day-Ahead Ten Minute non-Spinning Reserves (DA TMNSR) and Day-Ahead Thirty Minute Operating Reserves (DA TMOR). The participant’s hourly FRS credits are the sum of the credits by product type, which are calculated by multiplying each product’s FRS obligation by the FRS clearing price. The EIR obligations are cleared to meet the load forecast for the operating day. The participant’s hourly EIR credits are calculated by multiplying the EIR cleared obligation by the Forecast Energy Requirement (FER) price. In addition, all participants with Day-Ahead Energy Market obligation from generators, DRRs or import transactions will receive credit based on the FER price. All participants with a Day-Ahead Energy Market obligation from export transactions will receive a charge based on the FER price. The ancillary services obligations are call options with a close-out charge occurring when the Real-Time (RT) Locational Marginal Price (LMP) at the Hub is greater than the Day-Ahead Ancillary Services Strike Price.
Primary provisions for the settlement of the Day-Ahead Ancillary Services are included in Market Rule 1.
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The hourly services bill display contains a single line item netting charges and credits entitled “Day-Ahead Ancillary Services”.
BL_DAILYPOSITION—Daily financial position, including all market service settlements and miscellaneous billing adjustments generated daily, issued to all active customers
SD_DAASCLEARED—Hourly detail of a participant’s cleared ancillary services, issued upon settlement of market day
SD_DAASDT—Hourly detail of a participant’s credits and charges, issued upon settlement of the market day
SR_DAASSUM—Summary of a participant’s hourly day-ahead ancillary services charges and credits, issued upon settlement of the market day
Day-Ahead ancillary Services is reported on the SP_EQR report, available monthly one month after the given settlement, as referenced in the line item prefaced with the title “DAAS” in 快活app官网-NE Settlements to FERC EQR Product Mapping.
DA Ancillary Services Calculation Summary
