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ISONE ISO-NE Real-Time and Day-Ahead LMP

ISO-NE LMP for pricing nodes, the eight load zones, the Internal Hub and external nodes: five-minute and hourly real-time, and hourly day-ahead.

Published by ISO-NE Web Services (opens in a new tab)Cadence: 5-minute real-time and hourly day-ahead/real-timePricesISO-NE market
Ask the agentOpen in Data (opens in a new tab) Open on map

About this data

Each row is the price at one ISO-NE pricing location for one interval in one market run, with total LMP and its energy, congestion and loss components. Locations include physical nodes, the eight load zones, the Internal Hub and external nodes. Five-minute real-time, hourly real-time and hourly day-ahead prices sit in the same dataset, so a comparison starts by picking the run. These prices drive the ISO-NE PNode price layer on the Ask the Grid map.

What people use it for

  • Follow ISO-NE prices at the Internal Hub or a load zone
  • Compare day-ahead and real-time prices
  • Split a price into energy, congestion and loss

TermsLocational marginal pricing (LMP)Day-ahead vs. real-time marketsCongestion

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, and the map draws it as a layer. Every answer names the data it read and links back here.

PNode prices on the ISONE mapISO-NE market

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

Latest data

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Questions

Which data provider has ISONE ISO-NE Real-Time and Day-Ahead LMP 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 Real-Time and Day-Ahead LMP 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 Real-Time and Day-Ahead LMP?
Open the iso_ne.lmp 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 Real-Time and Day-Ahead LMP in plain English?
Yes. The grid agent reads this data when a question needs it, for example "what is the iso-ne hub price right now", and every answer names the dataset it read.