Spindle Hill Energy Center
Natural gas power plant in Weld County, Colorado. 420 MW of nameplate capacity across 2 generators, operated by Invenergy Services LLC.
Also known as EIA plant 56445
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 420 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- May 2007First generator online
- Operator
- Invenergy Services LLCEIA operator ID 49893
- Grid
- PSCOBalancing authority PSCO
- Price nodes
- None linkedNo verified ISO node
- Location
- Weld County, CO40.0922, −104.8878
- EIA plant ID
- 56445EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Spindle Hill produces
Free · EIA-923Net generation, 2025
705 GWh
705,438 MWh, final
Capacity factor, 2025
19.2%
2024: 12.8%
January to July 2026
106 GWh
Provisional
Range, 2015 to 2025
57.1–705.4
GWh a year. Low 2016, 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 | 506,487 | Not reported | 9 of 12 |
| 2008 | 177,718 | Not reported | 12 of 12 |
| 2009 | 944,044 | Not reported | 12 of 12 |
| 2010 | 568,882 | 16.5% | 12 of 12 |
| 2011 | 423,562 | 12.3% | 12 of 12 |
| 2012 | 288,102 | 8.3% | 12 of 12 |
| 2013 | 514,807 | 14.9% | 12 of 12 |
| 2014 | 246,999 | 7.2% | 12 of 12 |
| 2015 | 184,280 | 5.3% | 12 of 12 |
| 2016 | 57,133 | Not reported | 12 of 12 |
| 2017 | 122,186 | 3.3% | 12 of 12 |
| 2018 | 331,463 | 9.0% | 12 of 12 |
| 2019 | 270,184 | 7.3% | 12 of 12 |
| 2020 | 426,188 | 11.6% | 12 of 12 |
| 2021 | 237,968 | 6.5% | 12 of 12 |
| 2022 | 322,513 | 8.8% | 12 of 12 |
| 2023 | 252,708 | 6.9% | 12 of 12 |
| 2024 | 472,183 | 12.8% | 12 of 12 |
| 2025 | 705,438 | 19.2% | 12 of 12 |
| 2026 (provisional, partial year) | 105,919 | 5.0% | 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 CAMPDCO₂, 2025
473,340
US short tons. 2024: 310,308
SO₂, 2025
2
US short tons
NOx, 2025
142
US short tons
CO₂ per MWh, calculated
0.67 t
About 1,342 lb per MWh
2 of 2 EPA units reported CO₂ in 2025 (CT-01, CT-02), matched to EIA plant 56445 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
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 |
|---|---|---|---|
| GEN1 | Natural Gas Fired Combustion Turbine | 210.0 | May 2007 |
| GEN2 | Natural Gas Fired Combustion Turbine | 210.0 | May 2007 |
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 Invenergy Services LLC 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 Spindle Hill
More plants operated by Invenergy Services LLC
Questions about Spindle Hill
How much power does Spindle Hill Energy Center produce?
Spindle Hill Energy Center reported 705,438 MWh (705 GWh) of net generation in 2025, a 19.2% capacity factor on 420 MW of nameplate capacity. From January to July 2026 it reported 106 GWh, which is provisional.
Where is Spindle Hill Energy Center?
Spindle Hill Energy Center is in Weld County, Colorado, at 40.0922, −104.8878. It is in the Public Service Company of Colorado balancing area (PSCO).
Who operates Spindle Hill Energy Center?
EIA-860M for August 2026 lists Invenergy Services LLC as the operator (EIA operator ID 49893). The operator is not always the owner.
When did Spindle Hill Energy Center start operating?
Its first generator began operating in May 2007, 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)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page