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ISONE ISO-NE Seasonal Peak Hours

ISO-NE seasonal hourly peak load and system peak forecast, with the settlement status of each peak.

Published by ISO-NE Web Services (opens in a new tab)Cadence: ISO-NE source publicationLoadISO-NE market

About this data

Each row records a seasonal peak hour in ISO-NE, along with the system peak forecast and the settlement status of the figure. Seasonal peaks matter for capacity obligations and for planning, and the data shows when New England's loads were highest in a season and how that compared with expectations.

What people use it for

  • Find New England's seasonal peak hours
  • Compare peak outcomes with the peak forecast
  • Check whether peak figures have settled

Where to use it

In Ask the Grid

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Follow the live ISO-NE market in Ask the Grid: prices, load, generation and the grid map.

In ATG Data

Build with the full table

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 Seasonal Peak Hours data?
Ask the Grid has it, from ISO-NE Web Services. You can browse every row in Ask the Grid Data or query it with SQL or the Ask the Grid API.
Where does ISONE ISO-NE Seasonal Peak Hours 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 Seasonal Peak Hours?
Open the iso_ne.seasonal_peak_hour table in Ask the Grid Data to browse every row and run SQL against it, or call it from code through the Ask the Grid API. Full history can be delivered on a schedule to Snowflake, Databricks or your own storage.