Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/1605
EIA plant 1605
Holyoke · Hampden · MA
Hadley Falls
Operated by City of Holyoke Gas and Electric Dept.
Published location
Where is Hadley Falls?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
42.211900, -72.603600
Open the interactive map ↗Map data © OpenStreetMap contributors
Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.
Equipment mix
Operating capacity by technology
Grouped from this plant’s represented generator records. Use the MA plant index for regional peers.
See the evidence
Electricity output across the year
Monthly net generation shows the seasonal shape of this plant's represented output. A negative value is retained when the source reports net consumption.
122,277
221,169
320,174
420,318
515,620
68,192
710,814
812,370
93,151
102,030
114,571
1210,456
MWh net generation · 2024 final edition · EIA 923 represented operating rows. 12 of 12 supplied rows shown; 0 missing values omitted. Months with no reported numeric value are omitted, not treated as zero.
Read the chart as a table
| Record | MWh net generation |
|---|---|
| 1 | 22,277 |
| 2 | 21,169 |
| 3 | 20,174 |
| 4 | 20,318 |
| 5 | 15,620 |
| 6 | 8,192 |
| 7 | 10,814 |
| 8 | 12,370 |
| 9 | 3,151 |
| 10 | 2,030 |
| 11 | 4,571 |
| 12 | 10,456 |
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 22,277 MWh |
| 2 | 21,169 MWh |
| 3 | 20,174 MWh |
| 4 | 20,318 MWh |
| 5 | 15,620 MWh |
| 6 | 8,192 MWh |
| 7 | 10,814 MWh |
| 8 | 12,370 MWh |
| 9 | 3,151 MWh |
| 10 | 2,030 MWh |
| 11 | 4,571 MWh |
| 12 | 10,456 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| 1 | Conventional Hydroelectric | WAT | 17.6 | OP |
| 2 | Conventional Hydroelectric | WAT | 15.8 | OP |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
1605
Sector
Electric Utility
Water source
Connecticut River
Data edition
2024-final
Use this record
Questions this evidence can answer
01What exactly is this record?
Use the name, place, date and identifiers above to confirm that you have the right Hadley Falls power plant: capacity and generation | PowerPlantFacts record.
02What does the evidence establish?
Read the reported values with their units, coverage dates and source notes. Keep observed facts separate from estimates or interpretation.
03What should I verify next?
Follow the primary-source links and check the limitations before using this evidence for a decision, comparison or citation.
A closer look at Hadley Falls
Variation in the published months
Across 12 numeric monthly generation entries, 1 has the highest recorded value (22,277 MWh) and 10 the lowest (2,030 MWh). Their difference is 20,247 MWh. Missing months have not been treated as zero.
Generator capacity in different operating conditions
| Generator ID | Technology | Nameplate MW | Summer MW | Winter MW | Minimum load MW |
|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | 17.6 | 18.1 | 18.1 | 5.0 |
| 2 | Conventional Hydroelectric | 15.8 | 15.0 | 15.0 | 10.0 |
EIA-860 2024 final source. Ratings describe capacity, not actual generation or availability. Missing ratings are not zero.
Source: US Energy Information Administration Form EIA-860 2024 plant and operable-generator workbooks; archive 2024. US EIA-authored information is generally public domain; cite EIA, preserve third-party exceptions, changes and no-endorsement context. Source-specific derived data.