Flatiron
Hydro power plant in Larimer County, Colorado. 94.5 MW of nameplate capacity across 3 generators, operated by U S Bureau of Reclamation.
Also known as Flatiron Power Plant · EIA plant 518
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 94.5 MWHydro 86.0 · Pumped storage 8.5
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- January 1954First generator online
- Operator
- U S Bureau of ReclamationEIA operator ID 2518
- Grid
- WACMBalancing authority WACM
- Price nodes
- 1 SPP nodeResource nodes with prices
- Location
- Larimer County, CO40.3650, −105.2360
- EIA plant ID
- 518EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Flatiron produces
Free · EIA-923Net generation, 2025
215 GWh
214,845 MWh, final
Capacity factor, 2025
Not reported
2024: Not reported
January to July 2026
113 GWh
Provisional
Range, 2015 to 2025
126.8–215.4
GWh a year. Low 2020, high 2021
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 170,731 | Not reported | 12 of 12 |
| 2001 | 85,416 | Not reported | 7 of 12 |
| 2002 | 160,491 | Not reported | 12 of 12 |
| 2003 | 185,218 | Not reported | 12 of 12 |
| 2004 | 169,087 | Not reported | 12 of 12 |
| 2005 | 183,097 | Not reported | 12 of 12 |
| 2006 | 238,260 | Not reported | 12 of 12 |
| 2007 | 246,799 | Not reported | 12 of 12 |
| 2008 | 170,026 | Not reported | 12 of 12 |
| 2009 | 213,045 | Not reported | 12 of 12 |
| 2010 | 170,742 | Not reported | 12 of 12 |
| 2011 | 238,735 | Not reported | 12 of 12 |
| 2012 | 221,465 | Not reported | 12 of 12 |
| 2013 | 179,931 | Not reported | 12 of 12 |
| 2014 | 222,616 | Not reported | 12 of 12 |
| 2015 | 143,563 | Not reported | 12 of 12 |
| 2016 | 208,112 | Not reported | 12 of 12 |
| 2017 | 156,385 | Not reported | 12 of 12 |
| 2018 | 199,991 | Not reported | 12 of 12 |
| 2019 | 201,574 | Not reported | 12 of 12 |
| 2020 | 126,792 | Not reported | 12 of 12 |
| 2021 | 215,394 | Not reported | 12 of 12 |
| 2022 | 150,111 | Not reported | 12 of 12 |
| 2023 | 201,650 | Not reported | 12 of 12 |
| 2024 | 169,427 | Not reported | 12 of 12 |
| 2025 | 214,845 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | 112,957 | Not reported | 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 · SPPEmissions
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 |
|---|---|---|---|
| 1 | Conventional Hydroelectric | 43.0 | January 1954 |
| 2 | Conventional Hydroelectric | 43.0 | January 1954 |
| 3 | Hydroelectric Pumped Storage | 8.5 | May 1954 |
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 U S Bureau of Reclamation as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Power plants near Flatiron
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Questions about Flatiron
How much power does Flatiron produce?
Flatiron reported 214,845 MWh (215 GWh) of net generation in 2025. From January to July 2026 it reported 113 GWh, which is provisional.
Where is Flatiron?
Flatiron is in Larimer County, Colorado, at 40.3650, −105.2360. It is in the Western Area Power Administration - Rocky Mountain Region balancing area (WACM).
Who operates Flatiron?
EIA-860M for August 2026 lists U S Bureau of Reclamation as the operator (EIA operator ID 2518). The operator is not always the owner.
When did Flatiron start operating?
Its first generator began operating in January 1954, according to EIA-860M.
Does InfraMap have power prices for Flatiron?
Yes. InfraMap has SPP day-ahead and real-time prices at 1 price node linked to Flatiron, 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)
- SPP day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page