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ISONE ISO-NE Seven-Day Capacity Forecast

ISO-NE's adequacy outlook for the next seven market days: peak load, capacity, required reserve and surplus or deficiency, published three times daily.

Published by ISO-NE Web Services (opens in a new tab)Cadence: three publications dailyLoadISO-NE market
Ask the agentOpen in Data (opens in a new tab)

About this data

ISO-NE publishes a daily assessment of whether New England will have enough capacity for the next seven market days. It covers forecast peak load, capacity including imports, required reserve, outages, the stated surplus or deficiency, and operator watch or warning flags. The figures are daily peaks, not hourly values. It is the place to look for early signs of tight conditions in New England.

What people use it for

  • Check whether ISO-NE expects a capacity surplus or deficiency
  • See forecast peak load for the week ahead
  • Watch for operator warnings

Where to use it

In Ask the Grid

Ask about it, see it live

The grid agent reads it to answer questions about ISO-NE. Every answer names the data it read and links back here.

ISO-NE market

In ATG Data

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Schema, full history, coverage and query rules live in Data, where you can browse every row, run SQL and connect it to your own code.

Plans and access

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Questions

Which data provider has ISONE ISO-NE Seven-Day Capacity Forecast data?
Ask the Grid has it, from ISO-NE Web Services. You can browse every row in Ask the Grid Data, query it with SQL or the Ask the Grid API, reach it from an AI assistant over MCP, or ask the grid agent about it in plain English.
Where does ISONE ISO-NE Seven-Day Capacity Forecast come from?
It comes from ISO-NE Web Services. This page links to the original publication, so any value can be checked against it.
How do I download or query ISONE ISO-NE Seven-Day Capacity Forecast?
Open the iso_ne.seven_day_forecast table in Ask the Grid Data to browse every row and run SQL against it, call it from code through the Ask the Grid API, or connect an MCP client. Full history can be delivered on a schedule to Snowflake, Databricks or your own storage.
Can I ask questions about ISONE ISO-NE Seven-Day Capacity Forecast in plain English?
Yes. The grid agent reads this data when a question needs it, for example "does iso-ne expect a capacity shortfall this week", and every answer names the dataset it read.