ISO-NE
ISO New England · New England
Load, generation by fuel, real-time prices and notices for the New England grid, summarised from the public files ISO New England publishes.
StaleAs of ·source: www.iso-ne.com/ws/wsclient, www.iso-ne.com/transform/csv/fiveminlmp/current?type=prelim, www.iso-ne.com/markets-operations/system-forecast-status/current-system-status
This reading is stale: the newest figure is more than 2 hours old. Figures below are shown only where the export holds them; for ISO-NE’s current state use ISO Express.
Raw status JSON · figures are copied from ISO-NE’s public files; nothing on this page is exclusive.
Live conditions — New England grid
New England: Normal. The current electricity capacity status in New England is NORMAL. Conditions are considered normal when electricity supply is sufficient to meet expected demand plus required operating reserves.
as of · source: www.iso-ne.com
The condition is ISO-NE’s own operating state for the New England grid — normal, a watch when reserves run thin, or an emergency. It is copied from the operator’s notices, not inferred here; where the operator publishes no feed this page can read, it says so rather than guessing.
Load — ISO-NE demand
Load is total demand served on the ISO-NE system in megawatts. Figures are the values in the export; a dash means the feed did not carry the number, not that it was zero.
as of · source: www.iso-ne.com
Fuel mix — ISO New England generation
- Natural Gas6,300 MW · 44.5%
- Nuclear3,311 MW · 23.4%
- Hydro1,745 MW · 12.3%
- Net Imports1,696 MW · 12.0%
- Wind424 MW · 3.0%
- Refuse311 MW · 2.2%
- Wood280 MW · 2.0%
- Solar41 MW · 0.3%
- Landfill Gas26 MW · 0.2%
- Batteries18 MW · 0.1%
- Other1 MW · 0.0%
as of · 5-minute · source: www.iso-ne.com
Generation by fuel is a single snapshot at its own as-of time, using ISO-NE’s own fuel categories. It moves through the day — solar at midday, gas and storage into the evening.
Prices (LMP) — ISO-NE real-time prices
as of · source: www.iso-ne.com
A locational marginal price (LMP) is the cost of serving one more megawatt-hour at a given node: energy, plus congestion, plus losses. The spread between the lowest and highest node is congestion on the ISO-NE transmission system. Negative prices mean surplus supply, usually wind or solar, at that location.
Map — New England price map
ISO-NE price map
Real-time five-minute preliminary LMP, all locations (names resolved for hub and load zones only) across 1,205 pricing nodes: low 39.18 $/MWh, average 62.18 $/MWh, high 65.76 $/MWh. The export carries no coordinates for these nodes, so the map cannot place them.
Every market on one page: nodal LMP map.
The map colours every ISO-NE pricing node by its latest real-time LMP. The power plant and balancing authority maps linked below show what generates inside the ISO-NE footprint and where its boundary runs.
Alerts & news — ISO-NE notices
Alerts are not available for ISO-NE: no public ISO-NE alert/notice feed located (see grid/iso/sources.md). An empty list here would not mean there are no alerts — check www.iso-ne.com directly.
no as-of time · stale · source: www.iso-ne.com
FAQ — ISONE
What is ISO-NE?
ISO-NE, short for ISO New England, is the independent system operator for Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont. ISONE, ISO-NE and ISO New England all name the same organisation.
Why does ISO New England watch natural gas so closely in winter?
Gas-fired plants supply a large share of New England’s electricity, and on the coldest days the same pipelines also heat homes. The Fuel mix section shows how ISO-NE’s supply splits at the as-of time.
Where is ISO-NE’s official data?
ISO Express on iso-ne.com is ISO New England’s official data portal. Every figure on this page links back to the ISO-NE file it was taken from.