Princeton University Cogeneration
Solar and natural gas power plant in Mercer County, New Jersey. 32.1 MW of nameplate capacity across 5 generators, operated by Trustees of Princeton University.
Also known as EIA plant 58584
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 32.1 MWSolar 16.6 · Natural gas 15.5
- Generators
- 5 operatingEIA-860M, August 2026
- Operating since
- October 1996First generator online
- Operator
- Trustees of Princeton UniversityEIA operator ID 58542
- Grid
- PJMBalancing authority PJM
- Price nodes
- 1 PJM nodeResource nodes with prices
- Location
- Mercer County, NJ40.3414, −74.6572
- EIA plant ID
- 58584EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Princeton University Cogeneration produces
Free · EIA-923Net generation, 2025
77.2 GWh
77,202 MWh, final
Capacity factor, 2025
27.5%
2024: 19.3%
January to July 2026
47.1 GWh
Provisional
Range, 2015 to 2025
38.8–77.2
GWh a year. Low 2020, high 2025
| 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 | 5,037 | 33.9% | 1 of 12 |
| 2014 | 67,304 | 38.4% | 12 of 12 |
| 2015 | 74,281 | 42.4% | 12 of 12 |
| 2016 | 66,376 | 37.8% | 12 of 12 |
| 2017 | 73,163 | 41.8% | 12 of 12 |
| 2018 | 56,518 | 32.3% | 12 of 12 |
| 2019 | 59,133 | 33.8% | 12 of 12 |
| 2020 | 38,755 | 22.1% | 12 of 12 |
| 2021 | 49,489 | Not reported | 12 of 12 |
| 2022 | 67,384 | Not reported | 12 of 12 |
| 2023 | 54,034 | 19.2% | 12 of 12 |
| 2024 | 54,460 | 19.3% | 12 of 12 |
| 2025 | 77,202 | 27.5% | 12 of 12 |
| 2026 (provisional, partial year) | 47,090 | 28.8% | 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 · PJMEmissions
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. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| GT1 | Natural Gas Fired Combustion Turbine | 15.5 | October 1996 |
| PV1 | Solar Photovoltaic | 4.5 | October 2012 |
| PV2 | Solar Photovoltaic | 1.2 | October 2021 |
| PV3 | Solar Photovoltaic | 10.5 | March 2022 |
| PV4 | Solar Photovoltaic | 0.4 | March 2022 |
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 Trustees of Princeton University as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Modeled curtailment
A range, not one number. The lower bound counts hours inside the production tax credit window; the upper bound is the no-credit case.
Expected vs reported generation
Monthly modeled expected output and physical potential next to EIA-923 reported output.
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Questions about Princeton University Cogeneration
How much power does Princeton University Cogeneration produce?
Princeton University Cogeneration reported 77,202 MWh (77.2 GWh) of net generation in 2025, a 27.5% capacity factor on 32.1 MW of nameplate capacity. From January to July 2026 it reported 47.1 GWh, which is provisional.
Where is Princeton University Cogeneration?
Princeton University Cogeneration is in Mercer County, New Jersey, at 40.3414, −74.6572. It is in the PJM Interconnection, LLC balancing area (PJM).
Who operates Princeton University Cogeneration?
EIA-860M for August 2026 lists Trustees of Princeton University as the operator (EIA operator ID 58542). The operator is not always the owner.
Is Princeton University Cogeneration a solar or a natural gas plant?
Both. Solar capacity totals 16.6 MW and natural gas capacity totals 15.5 MW.
When did Princeton University Cogeneration start operating?
Its first generator began operating in October 1996, according to EIA-860M.
Does InfraMap have power prices for Princeton University Cogeneration?
Yes. InfraMap has PJM day-ahead and real-time prices at 1 price node linked to Princeton University Cogeneration, 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)
- PJM day-ahead and real-time prices; node and hub assignments as of 2026-10-05
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page