Access NEPOOL technical committee materials and FERC filings and orders related to the Day-Ahead Ancillary Services Initiative (DASI) Key Project.
The Day-Ahead Ancillary Services Initiative (DASI) project developed a market design for procuring and transparently pricing the ancillary service capabilities needed for a reliable, next鈥恉ay operating plan with an evolving generation fleet.
One component involves procuring a new day鈥恆head ancillary service (DA A/S) to cover the “gap” when the day鈥恆head market’s physical energy supply awards are below the 91短视频’s forecast real鈥恡ime load. The second component is to procure day-ahead flexible response services to ensure the system is prepared to recover from sudden source鈥恖oss contingencies and can respond quickly to fluctuations in net load during the operating day.
DASI went live and replaced the Forward Reserve Market on the March 1, 2025 operating day.
The Day-Ahead Ancillary Services Initiative project was one of several key projects at the 91短视频 as part of its ongoing efforts to enhance the region’s competitive wholesale electricity markets and ensure reliable operation of the power grid.
