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Five-Minute System Load

ISO-NE's observed five-minute system load, native load, active demand response, and behind-the-meter-PV-adjusted totals.

Load dataISO-NE market
Query with the agent
Native record
ISO-NE system x five-minute interval
5-minute publication cadence
Evidence
Observed market data
Published observations from the named source
Time basis
Point-in-time records
UTC · event_time

Overview

This is a market total and must not be copied into individual load zones.

Query contract

Select the latest ingested_at revision per event_time before returning system load.

Analysis rules

  • This is a system total. Never repeat or sum it across ISO-NE load zones.
  • load_mw, native_load, and their BTM-PV-adjusted fields are related published measures, not additive categories.

Access

Query from your own tools

Use the guarded HTTP endpoint directly, or connect an MCP client and load the dataset contract with describe_data before calling query_data.

ISO-NE MCP API reference
HTTP endpoint
POST /api/v1/datasets/isone_system_load_5m/query

Schema7

Column
Type
event_timeDateTime64(6, 'UTC')
load_mwNullable(Float64)
native_loadNullable(Float64)
ard_demandNullable(Float64)
system_load_btm_pvNullable(Float64)
native_load_btm_pvNullable(Float64)
ingested_atDateTime64(6, 'UTC')

Sample data

event_timeload_mwnative_loadard_demandsystem_load_btm_pvnative_load_btm_pvingested_at
2026-09-28 07:25:00.0000009605.1949250.794354.49605.1949250.7942026-09-28 07:30:17.612746
2026-09-28 07:20:00.0000009594.0739241.773352.39594.0739241.7732026-09-28 07:25:12.934828
2026-09-28 07:15:00.0000009588.889229.68359.29588.889229.682026-09-28 07:20:13.800097
2026-09-28 07:10:00.0000009686.1349274.734411.49686.1349274.7342026-09-28 07:15:15.579746
2026-09-28 07:05:00.0000009615.4869251.286364.29615.4869251.2862026-09-28 07:10:12.484719
2026-09-28 07:00:00.0000009598.6399240.139358.59598.6399240.1392026-09-28 07:05:12.119361
2026-09-28 06:55:00.0000009626.2369231.536394.79626.2369231.5362026-09-28 07:00:18.970802
2026-09-28 06:50:00.0000009654.1119252.611401.59654.1119252.6112026-09-28 06:55:13.481350
2026-09-28 06:45:00.0000009661.0019257.601403.49661.0019257.6012026-09-28 06:50:14.455351
2026-09-28 06:40:00.0000009724.6279268.027456.69724.6279268.0272026-09-28 06:45:13.563283
2026-09-28 06:35:00.0000009709.9359279.235430.79709.9359279.2352026-09-28 06:40:12.531111
2026-09-28 06:30:00.0000009741.5739272.473469.19741.5739272.4732026-09-28 06:35:14.395215
2026-09-28 06:25:00.0000009734.8339276.533458.39734.8339276.5332026-09-28 06:30:17.769626
2026-09-28 06:20:00.0000009775.9059313.305462.69775.9059313.3052026-09-28 06:25:14.362434
2026-09-28 06:15:00.0000009811.4429343.642467.89811.4429343.6422026-09-28 06:20:15.024144
2026-09-28 06:10:00.0000009807.1659341.965465.29807.1659341.9652026-09-28 06:15:13.900466
2026-09-28 06:05:00.0000009819.289360.18459.19819.289360.182026-09-28 06:10:13.334941
2026-09-28 06:00:00.0000009795.2499331.949463.39795.2499331.9492026-09-28 06:05:13.145546
2026-09-28 05:55:00.0000009810.5719347.271463.39810.5719347.2712026-09-28 06:00:18.186852
2026-09-28 05:50:00.0000009841.0949379.594461.59841.0949379.5942026-09-28 05:55:11.895168
2026-09-28 05:45:00.0000009855.2419391.541463.79855.2419391.5412026-09-28 05:50:13.928742
2026-09-28 05:40:00.0000009872.7369408.536464.29872.7369408.5362026-09-28 05:45:17.161876
2026-09-28 05:35:00.0000009901.3979437.597463.89901.3979437.5972026-09-28 05:40:14.240993
2026-09-28 05:30:00.0000009932.6529474.252458.49932.6529474.2522026-09-28 05:35:12.806363
2026-09-28 05:25:00.0000009954.6659488.765465.99954.6659488.7652026-09-28 05:30:14.574696

Coverage

100.0% complete0 gap days391 days with data
Show coverage history
Coverage: 100.0%Days with data: 391Gaps: 0
2026
2025
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