Mayaguez Plant
Puerto Rico · EIA plant ID 61151 · Operator: puerto rico electric pwr auth
Nameplate220MWSummer 220 MW
Generators4in service
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
Heat rate—thermal plants only
First online2009
Capacity factor by year
Net MWh ÷ (summer MW × hours), primary-fuel units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
No capacity factor available.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| GT-1 | Petroleum Liquids | GT | 55 | 55 | Apr 2009 | Operating | — | coming soon |
| GT-2 | Petroleum Liquids | GT | 55 | 55 | Apr 2009 | Operating | — | coming soon |
| GT-3 | Petroleum Liquids | GT | 55 | 55 | Apr 2009 | Operating | — | coming soon |
| GT-4 | Petroleum Liquids | GT | 55 | 55 | Apr 2009 | Operating | — | coming soon |
Owner / operator
Operator: puerto rico electric pwr auth. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| puerto rico electric pwr auth | 100.0% | 220 MW |
Nearby plants
Within 80 km.
| Cervecera de Puerto Rico | 6 MW | 2.2 km |
| Mayaguez Medical Center | 4 MW | 4.4 km |
| AMO Puerto Rico Manufacturing Inc. | 3 MW | 8.5 km |
| Hewlett Packard Puerto Rico | 6 MW | 30.2 km |
| Oriana Energy Hybrid | 67 MW | 30.9 km |
| USCG Puerto Rico PV | 2 MW | 31.2 km |