Mayaguez Plant
Oil power plant in Puerto Rico. 220 MW of nameplate capacity across 4 generators, operated by Puerto Rico Electric Pwr Authority.
Also known as EIA plant 61151
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 220 MWNameplate
- Generators
- 4 operatingEIA-860M, August 2026
- Operating since
- April 2009First generator online
- Operator
- Puerto Rico Electric Pwr AuthorityEIA operator ID 15497
- Grid
- NABalancing authority NA
- Price nodes
- None linkedNo verified ISO node
- Location
- PR18.2186, −67.1592
- EIA plant ID
- 61151EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Mayaguez Plant produces
Free · EIA-923Net generation, 2025
158 GWh
157,969 MWh, final
Capacity factor, 2025
Not reported
2024: Not reported
January to July 2026
88.2 GWh
Provisional
Range, 2017 to 2025
92.1–577.6
GWh a year. Low 2019, high 2024
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | 138,800 | Not reported | 12 of 12 |
| 2018 | 124,874 | Not reported | 12 of 12 |
| 2019 | 92,066 | Not reported | 12 of 12 |
| 2020 | 276,631 | Not reported | 12 of 12 |
| 2021 | 199,586 | Not reported | 12 of 12 |
| 2022 | 252,710 | Not reported | 12 of 12 |
| 2023 | 334,930 | Not reported | 11 of 12 |
| 2024 | 577,646 | Not reported | 12 of 12 |
| 2025 | 157,969 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | 88,241 | Not reported | 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 accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
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.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| GT-1 | Petroleum Liquids | 55.0 | April 2009 |
| GT-2 | Petroleum Liquids | 55.0 | April 2009 |
| GT-3 | Petroleum Liquids | 55.0 | April 2009 |
| GT-4 | Petroleum Liquids | 55.0 | April 2009 |
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 Puerto Rico Electric Pwr Authority 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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Power plants near Mayaguez Plant
More plants operated by Puerto Rico Electric Pwr Authority
Questions about Mayaguez Plant
How much power does Mayaguez Plant produce?
Mayaguez Plant reported 157,969 MWh (158 GWh) of net generation in 2025. From January to July 2026 it reported 88.2 GWh, which is provisional.
Where is Mayaguez Plant?
Mayaguez Plant is in Puerto Rico, at 18.2186, −67.1592.
Who operates Mayaguez Plant?
EIA-860M for August 2026 lists Puerto Rico Electric Pwr Authority as the operator (EIA operator ID 15497). The operator is not always the owner.
When did Mayaguez Plant start operating?
Its first generator began operating in April 2009, according to EIA-860M.
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)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page