Access data and information related to ISO New England’s two electric energy markets: the Day-Ahead Energy Market and the Real-Time Energy Market. See Applications and Status Changes if you’d like to do business in New England’s energy markets or need to make changes to your ISO account.
See ISO Express for a large selection of real-time and historical ISO data and reports that can help market participants make informed decisions, such as five-minute and hourly data for day-ahead and real-time energy prices, constraints, demand, and interchanges with other power systems.
About the ISO’s Energy Markets
New England’s wholesale electricity marketplace includes two electric energy markets that work together in what’s called a “multi-settlement” system:
- The Day-Ahead Energy Market lets market participants commit to buy or sell wholesale electricity one day before the operating day, to help avoid price volatility. This market produces one financial settlement.
- The Real-Time Energy Market lets market participants buy and sell wholesale electricity during the course of the operating day. The Real-Time Energy Market balances the differences between day-ahead commitments and the actual real-time demand for and production of electricity. The Real-Time Energy Market produces a separate, second financial settlement. It establishes the real-time locational marginal price (LMP) that is either paid or charged to participants in the Day-Ahead Energy Market for demand or generation that deviates from the day-ahead commitments.
Rules and Resources
Other sections of the ISO website may also be helpful. Of note: