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 cited sources give 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 table below; a product's full record lists the official sources behind it.
Every value below comes from the official sources listed in that product's full record. Most products cite more than one, and the published sources do not say which of them states each individual value, so the binding is to the product's record rather than to a single document. A missing line means the source does not state that value — never that the value is zero.
Scroll the table sideways for the rest of the columns →
| Service | How it activates | Response | Sustained delivery | Procurement |
|---|---|---|---|---|
| Regulation | ||||
| Regulation and Frequency Response Service Regulation Service | Response type pre-contingency continuous Trigger continuous movement within the regulation capacity award Dispatched by automatic generation control signals normally issued every six seconds | No deadline established Six seconds is the normal signal interval, not a universal full-response deadline; resource response is governed by its qualified response rate and regulation bid. | Through day-ahead; real-time Pricing design regulation capacity and movement/performance settlement under the Services Tariff | |
Full record for Regulation and Frequency Response Service — document bound, page for these figures not recorded What it is for Follow automatic control to correct area-control error and contribute to frequency response. What the source does not state It does not state a response time or how long delivery has to be sustained, and the volume is either set per auction or not published as a standing figure — the source does not say which. Sources | ||||
| Contingency reserve | ||||
| 10-Minute Non-Synchronized Reserve | Response type post-contingency Trigger qualified capability available within ten minutes; total ten-minute reserve must cover at least the largest contingency Dispatched by NYISO instruction | Expected within 10 min | Minimum obligation at least 1 h | Through day-ahead; real-time Pricing design locational operating-reserve market-clearing price |
Full record for 10-Minute Non-Synchronized Reserve — document bound, page for these figures not recorded What it is for Provide fast-start or otherwise qualified non-synchronized operating reserve following a contingency. Checkpoint recap Expected within 10 min · Minimum sustained 1 h What the source does not state The source states the response deadline and a minimum delivery period. It does not state a maximum duration, and the volume is either set per auction or not published as a standing figure — the source does not say which. Sources
| ||||
| 10-Minute Spinning Reserve | Response type post-contingency Trigger synchronized capability available within ten minutes; statewide spinning requirement is at least one-half of the largest contingency under the current manual formula Dispatched by automatic response and/or NYISO instruction | Expected within 10 min | Minimum obligation at least 1 h | Through day-ahead; real-time Pricing design locational operating-reserve market-clearing price |
Full record for 10-Minute Spinning Reserve — document bound, page for these figures not recorded What it is for Provide synchronized operating reserve following a contingency. Checkpoint recap Expected within 10 min · Minimum sustained 1 h What the source does not state The source states the response deadline and a minimum delivery period. It does not state a maximum duration, and the volume is either set per auction or not published as a standing figure — the source does not say which. Sources
| ||||
| 30-Minute Non-Synchronized Reserve | Response type post-contingency Trigger qualified capability available within thirty minutes; total operating reserve must equal at least twice the largest contingency Dispatched by NYISO instruction | Expected within 30 min | Minimum obligation at least 1 h | Through day-ahead; real-time Pricing design locational operating-reserve market-clearing price |
Full record for 30-Minute Non-Synchronized Reserve — document bound, page for these figures not recorded What it is for Provide non-synchronized replacement operating reserve within thirty minutes. Checkpoint recap Expected within 30 min · Minimum sustained 1 h What the source does not state The source states the response deadline and a minimum delivery period. It does not state a maximum duration, and the volume is either set per auction or not published as a standing figure — the source does not say which. Sources
| ||||
| 30-Minute Spinning Reserve | Response type post-contingency Trigger synchronized capability available within thirty minutes; total operating reserve must equal at least twice the largest contingency Dispatched by NYISO instruction | Expected within 30 min | Minimum obligation at least 1 h | Through day-ahead; real-time Pricing design locational operating-reserve market-clearing price |
Full record for 30-Minute Spinning Reserve — document bound, page for these figures not recorded What it is for Provide synchronized replacement operating reserve within thirty minutes. Checkpoint recap Expected within 30 min · Minimum sustained 1 h What the source does not state The source states the response deadline and a minimum delivery period. It does not state a maximum duration, and the volume is either set per auction or not published as a standing figure — the source does not say which. Sources
| ||||
| Reactive power & voltage | ||||
| Voltage Support Service | Response type continuous or directed Trigger facility-specific voltage schedule and tested reactive capability Dispatched by automatic voltage control and NYISO instruction | Through tariff-based Pricing design Services Tariff compensation rather than a co-optimized reserve price | ||
Full record for Voltage Support Service — document bound, page for these figures not recorded What it is for Maintain transmission voltages by supplying or absorbing reactive power. What the source does not state It does not state a response time or how long delivery has to be sustained, and the volume is either set per auction or not published as a standing figure — the source does not say which. Sources | ||||
| Black start & restoration | ||||
| Black Start Capability Service Black Start | Response type restoration Trigger restoration-plan and facility-specific requirements Dispatched by NYISO restoration instruction | Through contract- or tariff-based Pricing design Services Tariff compensation | ||
Full record for Black Start Capability Service — document bound, page for these figures not recorded What it is for Start without external station power and support system restoration. What the source does not state It does not state a response time or how long delivery has to be sustained, and the volume is either set per auction or not published as a standing figure — the source does not say which. Sources | ||||
| Other services | ||||
| Energy Imbalance Service | Response type settlement service Trigger difference between scheduled and actual energy Dispatched by real-time scheduling and metered deviation | Through real-time settlement Pricing design real-time locational based marginal price under the Services Tariff | ||
Full record for Energy Imbalance Service — document bound, page for these figures not recorded What it is for Settle real-time deviations between scheduled and actual energy injections or withdrawals. What the source does not state It does not state a response time or how long delivery has to be sustained, and the volume is either set per auction or not published as a standing figure — the source does not say which. Sources | ||||
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, rendered here with wording edited for readability). 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.