Quincy II Solar Garden
Solar power plant in Arapahoe County, Colorado. 1.5 MW of nameplate capacity across 1 generator, operated by Onsite Partners, LLC.
Also known as EIA plant 61752
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 1.5 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- May 2018First generator online
- Operator
- Onsite Partners, LLCEIA operator ID 60571
- Grid
- PSCOBalancing authority PSCO
- Price nodes
- None linkedNo verified ISO node
- Location
- Arapahoe County, CO39.6384, −104.6625
- EIA plant ID
- 61752EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Quincy II Solar Garden produces
Free · EIA-923Net generation, 2025
3.60 GWh
3,604 MWh, final
Capacity factor, 2025
27.4%
2024: 24.9%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2019 to 2025
2.2–3.6
GWh a year. Low 2023, 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 | 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 | Not reported | Not reported | 0 of 12 |
| 2018 | 2,335 | Not reported | 8 of 12 |
| 2019 | 3,386 | 25.8% | 12 of 12 |
| 2020 | 3,400 | 25.8% | 12 of 12 |
| 2021 | 3,170 | 24.1% | 12 of 12 |
| 2022 | 3,160 | 24.0% | 12 of 12 |
| 2023 | 2,225 | 16.9% | 12 of 12 |
| 2024 | 3,275 | 24.9% | 12 of 12 |
| 2025 | 3,604 | 27.4% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 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. 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 |
|---|---|---|---|
| PV1 | Solar Photovoltaic | 1.5 | May 2018 |
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 Onsite Partners, LLC 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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Power plants near Quincy II Solar Garden
More plants operated by Onsite Partners, LLC
Questions about Quincy II Solar Garden
How much power does Quincy II Solar Garden produce?
Quincy II Solar Garden reported 3,604 MWh (3.60 GWh) of net generation in 2025, a 27.4% capacity factor on 1.5 MW of nameplate capacity.
Where is Quincy II Solar Garden?
Quincy II Solar Garden is in Arapahoe County, Colorado, at 39.6384, −104.6625. It is in the Public Service Company of Colorado balancing area (PSCO).
Who operates Quincy II Solar Garden?
EIA-860M for August 2026 lists Onsite Partners, LLC as the operator (EIA operator ID 60571). The operator is not always the owner.
When did Quincy II Solar Garden start operating?
Its first generator began operating in May 2018, 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