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ISO New England

ISO-NE power prices

Hub prices, negative-price hours and the plant fleet, 2025 and 2026 to August.

Internal Hub real-time, 2025
$65.88 /MWh
Internal Hub day-ahead, 2025
$67.86 /MWh
Internal Hub real-time, 2026 to Aug
$72.62 /MWh
Negative real-time hours at plant nodes, 2025
1.5%

ISO-NE hourly prices through August 2026 · EIA-860M August 2026 · Updated 2026-10-27

Hub prices

1 hub, January 2025 to August 2026.

Monthly average price

  • Real-time
  • Day-ahead
$0$50$100$150$200JanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJunJulAug20252026 to Aug

USD/MWh, mean of each month’s complete hours at the hub.

ISO-NE hourly prices through August 2026.

Hours with negative real-time prices

  • Plant nodes341 nodes
  • Internal Hub
0%2%4%6%JanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJunJulAug20252026 to Aug5.4%

Negative node-hours over valid node-hours, real-time.

Real-time prices at 341 pricing nodes linked to plants. Node names are part of Pro.

Average prices by hub, USD/MWh, and the share of 2025 real-time hours below $0
Hub2025 real-time2025 day-ahead2026 to Aug real-time2026 to Aug day-aheadNegative hours, 2025
Internal Hub$65.88$67.86$72.62$76.460.8%

Plant fleet

Operating plants
1,468
Nameplate
38 GW
Plants with hourly node prices
657 of 1,468
States
7

Nameplate by fuel

  • Natural gas17 GW42%
  • Other8.5 GW21%
  • Hydro3.8 GW9%
  • Solar3.7 GW9%
  • Nuclear3.5 GW9%
  • Wind2.5 GW6%
  • Battery storage1.0 GW3%
  • Coal0.1 GW0%

EIA-860M August 2026, operating projects by ISO region.Open the map

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