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Hadley Falls — Power plant · Hydro · City of Holyoke Gas and Elec Dept - (MA)Hadley Falls unit 3 — Postponed · Hydro · MA · 3.5 MW · 0.0 mi awayRiverside Holyoke — Postponed · Hydro · MA · 1.1 MW · 0.9 mi awayChicopee BESS — Under construction · Storage · MA · 5 MW · 2.7 mi awayHolyoke MA BESS 1 — Under construction · Storage · MA · 5 MW · 3.8 mi awayStony Brook — Postponed · Gas, combined cycle · MA · 422 MW · 4.9 mi awayPalmer Renewable Energy — Postponed · Biomass · MA · 42 MW · 5.3 mi awayBelchertown Solar PV + Battery Project — Under construction · Solar + storage · MA · 5.6 MW · 13.4 mi away
  • Clean firm
  • Wind & solar
  • Storage
  • Under construction
  • Operating
  • 10 · 100 · 1,000 MW

Hadley Falls

Power plant · Hydro

Key facts

Power plant · Hydroran 47% of 2025 Operating
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
1952
Net generation, 2025
137,327 MWh
Grid
34 kV to City of Holyoke - (MA) (ISNE)
Location
Hampden County, Massachusetts
Operated by
City of Holyoke Gas and Elec Dept - (MA)SourceEIA-860M Preliminary Monthly Electric Generator Inventory

Output

Net generation MWh by year, 2001 to 2025

Operations detail

Details

Who’s behind it

No companies named in filings yet.

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Technology
Hydro source: “Conventional Hydroelectric”
Age
74 years since 1952
All 6 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
AttributeValue
Gem
Unit ids
G100001062805
Location id
L100001054913
Grid
Nerc region
NPCC
Report year
2025
Grid voltage kv
34.50
Transmission owner
City of Holyoke - (MA)
Balancing authority code
ISNE
Balancing authority name
ISO New England Inc.
Fuel burned (MMBtu), 2025468,561
Capacity factor, 20250.469
Net generation (MWh), 2025137,327
Balancing authority codeISNE

Timeline

  • In service · EIA-860M

Sources

4 sources

Sources EIA-860M · GEM · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory

Sources

  • EIA-860MOpen license · retrieved Nov 4, 2026
  • GEMOpen license, with credit · retrieved Oct 26, 2026Global Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
  • EIAOpen license · retrieved Nov 1, 2026Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
  • EIA-860M Preliminary Monthly Electric Generator Inventory

Every source and license · Attribution

View at source

Around this plant

Nearby

within 15 mi
ProjectKindAwayMW
Hadley Falls unit 3 Postponed Hydro 0.0 mi 3.5
Riverside Holyoke Postponed Hydro 0.9 mi 1.1
Chicopee BESS Under construction Storage 2.7 mi 5
Holyoke MA BESS 1 Under construction Storage 3.8 mi 5
Stony Brook Postponed Gas, combined cycle 4.9 mi 422
Palmer Renewable Energy Postponed Biomass 5.3 mi 42
Belchertown Solar PV + Battery Project Under construction Solar + storage 13.4 mi 5.6

Sources EIA-860M

Sources

  • EIA-860MOpen license · retrieved Nov 4, 2026

Attribution