William F Wyman Hybrid
Oil project in Cumberland County, Maine. 862.7 MW of nameplate capacity across 5 generators, operated by FPL Energy Wyman LLC.
Also known as Wyman Energy Center · EIA plant 1507
This project groups William F Wyman Hybrid (EIA 1507). EIA reports them as separate plants.
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 862.7 MWOil 846.0 · Battery storage 16.7
- Generators
- 5 operatingEIA-860M, August 2026
- Operating since
- January 1957First generator online
- Operator
- FPL Energy Wyman LLCEIA operator ID 31719
- Grid
- ISO-NEBalancing authority ISNE
- Price nodes
- 3 ISONE nodesResource nodes with prices
- Location
- Cumberland County, ME43.7508, −70.1567
- EIA plant ID
- 1507EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power William F Wyman Hybrid produces
Free · EIA-923Net generation, 2025
138 GWh
137,593 MWh, final
Capacity factor, 2025
1.9%
2024: 0.5%
January to July 2026
235 GWh
Provisional
Range, 2015 to 2025
5.9–485.7
GWh a year. Low 2021, high 2015
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 1,893,452 | Not reported | 12 of 12 |
| 2001 | 1,106,656 | Not reported | 12 of 12 |
| 2002 | 407,834 | Not reported | 12 of 12 |
| 2003 | 1,235,220 | Not reported | 12 of 12 |
| 2004 | 686,981 | Not reported | 12 of 12 |
| 2005 | 883,885 | Not reported | 12 of 12 |
| 2006 | 67,649 | Not reported | 12 of 12 |
| 2007 | 379,802 | Not reported | 12 of 12 |
| 2008 | 168,804 | Not reported | 12 of 12 |
| 2009 | 236,922 | Not reported | 12 of 12 |
| 2010 | 159,831 | 2.2% | 12 of 12 |
| 2011 | 87,375 | 1.2% | 12 of 12 |
| 2012 | 59,067 | 0.8% | 12 of 12 |
| 2013 | 199,647 | 2.7% | 12 of 12 |
| 2014 | 253,188 | 3.4% | 12 of 12 |
| 2015 | 485,689 | 6.6% | 12 of 12 |
| 2016 | 2,739 | Not reported | 1 of 12 |
| 2017 | 106,352 | 1.5% | 12 of 12 |
| 2018 | 156,386 | 2.1% | 12 of 12 |
| 2019 | 5,942 | 0.1% | 12 of 12 |
| 2020 | 10,567 | 0.2% | 12 of 12 |
| 2021 | 5,909 | 0.1% | 12 of 12 |
| 2022 | 234,089 | 3.2% | 12 of 12 |
| 2023 | 39,268 | 0.5% | 12 of 12 |
| 2024 | 34,988 | 0.5% | 12 of 12 |
| 2025 | 137,593 | 1.9% | 12 of 12 |
| 2026 (provisional, partial year) | 234,577 | 5.5% | 7 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 CAMPDCO₂, 2025
123,082
US short tons. 2024: 35,191
SO₂, 2025
399
US short tons
NOx, 2025
119
US short tons
CO₂ per MWh, calculated
0.89 t
About 1,789 lb per MWh
2 of 2 EPA units reported CO₂ in 2025 (1, 2, 3, 4), matched to EIA plant 1507 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
Not reported
million gallons as reported; not used, see note
Consumption, 2024
Not reported
million gallons
Source
Casco River
Surface, Saline. Once-through
0 of 48 cooling months report withdrawal. Saline, brackish or ocean intake; not tested. Consumption is below 5% of a large reported withdrawal, so the withdrawal is not used. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Petroleum Liquids | 50.0 | January 1957 |
| 2 | Petroleum Liquids | 50.0 | January 1958 |
| 3 | Petroleum Liquids | 113.6 | January 1965 |
| 4 | Petroleum Liquids | 632.4 | January 1978 |
| BESS | Batteries | 16.7 | December 2016 |
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 FPL Energy Wyman LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Questions about William F Wyman Hybrid
How much power does William F Wyman Hybrid produce?
William F Wyman Hybrid reported 137,593 MWh (138 GWh) of net generation in 2025, a 1.9% capacity factor on 862.7 MW of nameplate capacity. From January to July 2026 it reported 235 GWh, which is provisional.
Where is William F Wyman Hybrid?
William F Wyman Hybrid is in Cumberland County, Maine, at 43.7508, −70.1567. It is in the ISO New England Inc. balancing area (ISNE).
Who operates William F Wyman Hybrid?
EIA-860M for August 2026 lists FPL Energy Wyman LLC as the operator (EIA operator ID 31719). The operator is not always the owner.
When did William F Wyman Hybrid start operating?
Its first generator began operating in January 1957, according to EIA-860M.
Does InfraMap have power prices for William F Wyman Hybrid?
Yes. InfraMap has ISONE day-ahead and real-time prices at 3 price nodes linked to William F Wyman Hybrid, 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)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- ISONE day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page