Princeton University Cogeneration
Mercer County, New Jersey · EIA plant ID 58584 · Operator: Trustees of Princeton University
Nameplate32MWSummer 32 MW
Generators5in service
Net generation81GWh12 mo to Aug 2026
Capacity factor14%solar units, summer MW
Heat rate4,556Btu/kWhfossil units, electric fuel, HHV
First online1996
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), solar units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2013 | 67.4 | 20.2% | 12,381 |
| 2014 | 67.3 | 19.9% | 12,381 |
| 2015 | 74.3 | 19.8% | 12,311 |
| 2016 | 66.4 | 20.5% | 4,580 |
| 2017 | 73.2 | 18.7% | 4,579 |
| 2018 | 56.5 | 13.9% | 4,581 |
| 2019 | 59.1 | 18.8% | 4,652 |
| 2020 | 38.8 | 18.4% | 4,643 |
| 2021 | 49.5 | 16.3% | 4,613 |
| 2022 | 67.4 | 18.4% | 4,563 |
| 2023 | 54 | 14.2% | 4,583 |
| 2024 | 54.5 | 14.5% | 4,595 |
| 2025 | 77.2 | 14.2% | 4,549 |
Fuel capability
Gas-fired turbines (CT/GT/CA/CS) that can also burn liquid fuel. EIA-860 Schedule 3 for capability, EIA-923 for actual burn.
StatusLikely still dual fuel
Liquid fuel burned · 36 mo34,240 MMBtu
Last month with liquid burnMay 2026
Switch while operatingYes
Net summer MW on gas16
Net summer MW on oil16
Time gas → oilup to 1 h (EIA 1H)
Time oil → gasup to 1 h (EIA 1H)
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 |
|---|---|---|---|---|---|---|---|---|
| GT1 | Natural Gas Fired Combustion Turbine | GT | 15.5 | 15.5 | Oct 1996 | Operating | — | coming soon |
| PV1 | Solar Photovoltaic | PV | 4.5 | 4.5 | Oct 2012 | Operating | — | coming soon |
| PV2 | Solar Photovoltaic | PV | 1.2 | 1.2 | Oct 2021 | Operating | — | coming soon |
| PV3 | Solar Photovoltaic | PV | 10.5 | 10.5 | Mar 2022 | Operating | — | coming soon |
| PV4 | Solar Photovoltaic | PV | 0.4 | 0.4 | Mar 2022 | Operating | — | coming soon |
Owner / operator
Operator: Trustees of Princeton University. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Trustees of Princeton University | 48.3% | 16 MW |
| Tiger Solar Partners, LLC | 37.7% | 12 MW |
| Key Government Finance, Inc. | 14.0% | 5 MW |
Nearby plants
Within 80 km.
| 701 Carnegie Center | 1 MW | 2.1 km |
| 101 Carnegie Center Solar, LLC | 1 MW | 2.3 km |
| Princeton Energy Center, LLC | 11 MW | 2.8 km |
| 510 Carnegie Center | 1 MW | 3 km |
| Bristol Myers Squibb Lawrenceville | 11 MW | 4.7 km |
| Princeton Solar Project | 2 MW | 5 km |