Black Mountain Generating Station
Natural gas power plant in Mohave County, Arizona. 121 MW of nameplate capacity across 2 generators, operated by UNS Electric, Inc.
Also known as EIA plant 56482
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 121 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- May 2008First generator online
- Operator
- UNS Electric, IncEIA operator ID 19728
- Grid
- TEPCBalancing authority TEPC
- Price nodes
- None linkedNo verified ISO node
- Location
- Mohave County, AZ35.0361, −114.1594
- EIA plant ID
- 56482EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Black Mountain produces
Free · EIA-923Net generation, 2025
55.2 GWh
55,227 MWh, final
Capacity factor, 2025
5.2%
2024: 8.1%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
49.6–165.6
GWh a year. Low 2015, high 2020
| 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 | 102,682 | Not reported | 12 of 12 |
| 2009 | 102,682 | Not reported | 12 of 12 |
| 2010 | 87,401 | 8.2% | 12 of 12 |
| 2011 | 5,229 | 0.5% | 12 of 12 |
| 2012 | 75,615 | 7.1% | 12 of 12 |
| 2013 | 51,906 | 4.9% | 12 of 12 |
| 2014 | 52,057 | 4.9% | 12 of 12 |
| 2015 | 49,558 | 4.7% | 12 of 12 |
| 2016 | 56,868 | 5.4% | 12 of 12 |
| 2017 | 54,129 | 5.1% | 12 of 12 |
| 2018 | 79,795 | 7.5% | 12 of 12 |
| 2019 | 98,009 | 9.2% | 12 of 12 |
| 2020 | 165,574 | 15.6% | 12 of 12 |
| 2021 | 127,687 | 12.0% | 12 of 12 |
| 2022 | 93,671 | 8.8% | 12 of 12 |
| 2023 | 94,899 | 9.0% | 12 of 12 |
| 2024 | 86,351 | 8.1% | 12 of 12 |
| 2025 | 55,227 | 5.2% | 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 CAMPDCO₂, 2025
34,475
US short tons. 2024: 54,404
SO₂, 2025
1
US short tons
NOx, 2025
30
US short tons
CO₂ per MWh, calculated
0.62 t
About 1,248 lb per MWh
2 of 2 EPA units reported CO₂ in 2025 (1, 2), matched to EIA plant 56482 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 |
|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | 60.5 | May 2008 |
| 2 | Natural Gas Fired Combustion Turbine | 60.5 | May 2008 |
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 UNS Electric, Inc 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.
300 analyst questions a month, plus MCP
Query Black Mountain Generating Station and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Black Mountain
More plants operated by UNS Electric, Inc
Questions about Black Mountain
How much power does Black Mountain Generating Station produce?
Black Mountain Generating Station reported 55,227 MWh (55.2 GWh) of net generation in 2025, a 5.2% capacity factor on 121 MW of nameplate capacity.
Where is Black Mountain Generating Station?
Black Mountain Generating Station is in Mohave County, Arizona, at 35.0361, −114.1594. It is in the Tucson Electric Power Company balancing area (TEPC).
Who operates Black Mountain Generating Station?
EIA-860M for August 2026 lists UNS Electric, Inc as the operator (EIA operator ID 19728). The operator is not always the owner.
When did Black Mountain Generating Station start operating?
Its first generator began operating in May 2008, 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