WindOperatingERCOT

King Mountain Wind Ranch 1

Wind power plant in Upton County, Texas. 278 MW of nameplate capacity across 1 generator, operated by FPL Energy Upton Wind LP.

Also known as King Mtn. Wind Ranch · EIA plant 55581

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Roadrunner, LLC HybridCastle Gap Solar HybridUpton County SolarRevolutionCrossett Power Management LLCKing Mountain Wind Ranch 12 km
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6 plants within 8.3 km, from EIA coordinates.

Key facts

Capacity
278 MWNameplate
Generators
1 operatingEIA-860M, August 2026
Operating since
June 2001First generator online
Operator
FPL Energy Upton Wind LPEIA operator ID 6354
Grid
ERCOTBalancing authority ERCO
Price nodes
2 ERCOT nodesResource nodes with prices
Location
Upton County, TX31.2092, −102.2417
EIA plant ID
55581EIA plant page

Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.

How much power King Mountain Wind Ranch 1 produces

Free · EIA-923

Net generation, 2025

573 GWh

573,485 MWh, final

Capacity factor, 2025

23.5%

2024: 22.4%

January to July 2026

400 GWh

Provisional

Range, 2015 to 2025

312.8–616.4

GWh a year. Low 2018, high 2022

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
2000Not reportedNot reported0 of 12
2001135,232Not reported12 of 12
2002554,644Not reported12 of 12
2003549,959Not reported12 of 12
2004581,036Not reported12 of 12
2005648,548Not reported12 of 12
2006690,563Not reported12 of 12
2007646,380Not reported12 of 12
2008647,365Not reported12 of 12
2009580,568Not reported12 of 12
2010710,81629.2%12 of 12
2011685,33828.1%12 of 12
2012616,88425.3%12 of 12
2013616,94225.3%12 of 12
2014662,72327.2%12 of 12
2015512,49321.0%12 of 12
2016468,86719.2%12 of 12
2017462,13619.0%12 of 12
2018312,76012.8%12 of 12
2019504,28020.7%12 of 12
2020600,85724.6%12 of 12
2021504,34620.7%12 of 12
2022616,44425.3%12 of 12
2023566,79323.3%12 of 12
2024547,71322.4%12 of 12
2025573,48523.5%12 of 12
2026 (provisional, partial year)400,11228.3%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 · ERCOT

Emissions

Free · EPA CAMPD

No EPA emissions units are linked to this plant.

Water use

Free · EIA-923 cooling, USGS

No 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
GeneratorTechnologyNameplate MWOnline since
EXISOnshore Wind Turbine278.0June 2001

Ownership and offtake

Pro
Pro

Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists FPL Energy Upton Wind LP as the operator, which is not always the owner.

Modeled data

Pro

Pro adds modeled values for this plant. Everything above stays free.

Modeled

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.

Modeled

Expected vs reported generation

Monthly modeled expected output and physical potential next to EIA-923 reported output.

Analyst and MCP

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Power plants near King Mountain Wind Ranch 1

Questions about King Mountain Wind Ranch 1

How much power does King Mountain Wind Ranch 1 produce?

King Mountain Wind Ranch 1 reported 573,485 MWh (573 GWh) of net generation in 2025, a 23.5% capacity factor on 278 MW of nameplate capacity. From January to July 2026 it reported 400 GWh, which is provisional.

Where is King Mountain Wind Ranch 1?

King Mountain Wind Ranch 1 is in Upton County, Texas, at 31.2092, −102.2417. It is in the Electric Reliability Council of Texas, Inc. balancing area (ERCO).

Who operates King Mountain Wind Ranch 1?

EIA-860M for August 2026 lists FPL Energy Upton Wind LP as the operator (EIA operator ID 6354). The operator is not always the owner.

When did King Mountain Wind Ranch 1 start operating?

Its first generator began operating in June 2001, according to EIA-860M.

Does InfraMap have power prices for King Mountain Wind Ranch 1?

Yes. InfraMap has ERCOT day-ahead and real-time prices at 2 price nodes linked to King Mountain Wind Ranch 1, 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)
  • ERCOT day-ahead and real-time prices; node and hub assignments as of 2026-10-05
  • Project names from the USGS U.S. Wind Turbine Database

Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page