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Chokepoints
Grid Storage
Northfield Mountain hydroelectric plant
17th-largest grid storage in United States of 101 · top 45% worldwide (#426 of 965)
- Operator
- Firstlight Power Resources
- Owner
- Firstlight Power Resources Inc
- Status
- operating
- Capacity
- 1,168 MW
- Technology
- pumped storage
- Commissioned
- 1973
- Also listed as
- A power plant — this site generates as well as stores
Comparable grid storages · United States · 101 ranked
- #1Red Lake Pumped hydroelectric plant3.0 GW
- #15Eagle Mountain Pumped hydroelectric plant1.3 GW
- #16Goldendale Pumped Storage hydroelectric plant1.2 GW
- #17Northfield Mountain hydroelectric plant1.2 GW
- #18Muddy Run hydroelectric plant1.1 GW
- #19Helms hydroelectric plant1.1 GW
Grid connection · within 50 km
- Nearest substation
- Northfield Substation
- Its voltage
- 345 kV
- Distance
- 265 m
Mapped grid infrastructure from OpenStreetMap, whose coverage is excellent in some regions and sparse in others. Nothing shown here means nothing is mappednearby — not that the site is unconnected. Lines are matched on a segment’s midpoint, so a corridor passing directly overhead can be missed; this under-reports rather than invents.
Co-located infrastructure · within 25 km
- Northfield Mountain hydroelectric plant0 m · Power Plant · 1.2 GW · hydro
- Northfield Substation265 m · Substation / Converter
- Vermont Yankee nuclear power plant19 km · Power Plant · 635 MW · nuclear
- Vermont Yankee Substation19 km · Substation / Converter
- Vernon VT Substation20 km · Substation / Converter
On the interactive map
Watercourse: Connecticut River
SOURCE: Global Energy Monitor · Global Integrated Power, March 2026 (CC BY 4.0)