Chemical
Hydro power plant in Hampden County, Massachusetts. 1.6 MW of nameplate capacity across 2 generators, operated by City of Holyoke Gas and Elec Dept - (MA).
Also known as EIA plant 1604
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 1.6 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- January 1935First generator online
- Operator
- City of Holyoke Gas and Elec Dept - (MA)EIA operator ID 8776
- Grid
- ISO-NEBalancing authority ISNE
- Price nodes
- 1 ISONE nodeResource nodes with prices
- Location
- Hampden County, MA42.1919, −72.6097
- EIA plant ID
- 1604EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Chemical produces
Free · EIA-923Net generation, 2025
5.14 GWh
5,143 MWh, final
Capacity factor, 2025
36.7%
2024: 39.0%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
0.0–7.4
GWh a year. Low 2020, high 2023
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 1,613 | Not reported | 12 of 12 |
| 2001 | 1,037 | Not reported | 12 of 12 |
| 2002 | 1,422 | Not reported | 12 of 12 |
| 2003 | 2,270 | Not reported | 12 of 12 |
| 2004 | 1,481 | Not reported | 12 of 12 |
| 2005 | 2,979 | Not reported | 12 of 12 |
| 2006 | 11,446 | Not reported | 12 of 12 |
| 2007 | 6,441 | Not reported | 12 of 12 |
| 2008 | 5,257 | Not reported | 12 of 12 |
| 2009 | 4,363 | Not reported | 12 of 12 |
| 2010 | 3,519 | 25.1% | 12 of 12 |
| 2011 | 5,469 | 39.0% | 12 of 12 |
| 2012 | 3,549 | 25.3% | 12 of 12 |
| 2013 | 4,174 | 29.8% | 12 of 12 |
| 2014 | 3,602 | 25.7% | 12 of 12 |
| 2015 | 6,814 | 48.6% | 12 of 12 |
| 2016 | 3,102 | 22.1% | 12 of 12 |
| 2017 | 2,417 | 17.2% | 12 of 12 |
| 2018 | 3,490 | 24.9% | 12 of 12 |
| 2019 | 1,598 | 11.4% | 12 of 12 |
| 2020 | 0 | 0.0% | 12 of 12 |
| 2021 | 3,139 | 22.4% | 12 of 12 |
| 2022 | 3,537 | 25.2% | 12 of 12 |
| 2023 | 7,371 | 52.6% | 12 of 12 |
| 2024 | 5,483 | 39.0% | 12 of 12 |
| 2025 | 5,143 | 36.7% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · ISONEEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Conventional Hydroelectric | 0.8 | January 1935 |
| 2 | Conventional Hydroelectric | 0.8 | January 1935 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists City of Holyoke Gas and Elec Dept - (MA) as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Power plants near Chemical
More plants operated by City of Holyoke Gas and Elec Dept - (MA)
Questions about Chemical
How much power does Chemical produce?
Chemical reported 5,143 MWh (5.14 GWh) of net generation in 2025, a 36.7% capacity factor on 1.6 MW of nameplate capacity.
Where is Chemical?
Chemical is in Hampden County, Massachusetts, at 42.1919, −72.6097. It is in the ISO New England Inc. balancing area (ISNE).
Who operates Chemical?
EIA-860M for August 2026 lists City of Holyoke Gas and Elec Dept - (MA) as the operator (EIA operator ID 8776). The operator is not always the owner.
When did Chemical start operating?
Its first generator began operating in January 1935, according to EIA-860M.
Does InfraMap have power prices for Chemical?
Yes. InfraMap has ISONE day-ahead and real-time prices at 1 price node linked to Chemical, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- ISONE day-ahead and real-time prices; node and hub assignments as of 2026-10-05
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page