New York, United States.
Wholesale design: nodal energy and ancillary-services markets with short-term installed-capacity auctions and bilateral capacity trading.
Energy in NYISO trades in 2 layers: Day-Ahead Market and Real-Time Market. Participation in Real-Time Market is mandatory. Scheduling and settlement, where the official sources state them, are in the table below.
| Layer | Scheduling | Settlement |
|---|---|---|
| Day-Ahead Market | hourly | locational based marginal prices for energy and market-clearing prices for regulation and operating reserve |
| Real-Time Market (mandatory) | five-minute real-time dispatch and pricing | real-time locational based marginal prices and ancillary-service market-clearing prices |
NYISO has 8 ancillary-service products, across 5 families — regulation, contingency reserve, reactive power & voltage, black start & restoration and other services: 10-Minute Non-Synchronized Reserve, 10-Minute Spinning Reserve, 30-Minute Non-Synchronized Reserve, 30-Minute Spinning Reserve, Black Start Capability Service, Energy Imbalance Service, Regulation and Frequency Response Service, Voltage Support Service. Response timing, direction and eligibility for each are in the cards below, as the official sources state them.
Facts below are stated as the official sources state them. A missing line means the source does not state that value — never that the value is zero.
Follow automatic control to correct area-control error and contribute to frequency response.
Provide fast-start or otherwise qualified non-synchronized operating reserve following a contingency.
Provide synchronized operating reserve following a contingency.
Provide non-synchronized replacement operating reserve within thirty minutes.
Provide synchronized replacement operating reserve within thirty minutes.
Maintain transmission voltages by supplying or absorbing reactive power.
Start without external station power and support system restoration.
Settle real-time deviations between scheduled and actual energy injections or withdrawals.
Yes — Installed Capacity Market is a central capacity market.
Load-serving entities must meet locational UCAP requirements. Bilateral transactions coexist with NYISO-administered auctions; the mandatory Spot Market Auction clears residual requirements against locational demand curves.
Current as of · from the Global Electricity Market Catalogue v1.2.0 (compiled to , CC BY 4.0). Facts belong to the linked official authorities; verify the current rules before design or bidding decisions.
The markets index holds the full set. For what the grid demands of a battery here, see the grid-code ride-through atlas.