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Rambler — Power plant · Solar · Deriva Energy
  • Wind & solar
  • Operating
  • 10 · 100 · 1,000 MW

Rambler

Power plant · Solar

Key facts

Power plant · Solarran 22% of 2025 Operating
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
2020
Net generation, 2025
376,921 MWh
Grid
345 kV to Lower Colorado River Authority (ERCO)
Location
Tom Green County, Texas
Operated by
Deriva Energy
Net generation, 2025
376,921MWh
Fuel burned, 2025
1,286,055MMBtu
Capacity factor, 2025
21.5%
Heat rate, 2025
Not stated
Capacity factor % of full output, by year
YearNet generation (MWh)Fuel burned (MMBtu)Capacity factorHeat rate (Btu/kWh)
2026 (8 of 12 months)237,839811,507——
2025376,9211,286,05521.5%—
2024439,8641,500,81525.0%—
2023452,0841,542,51325.8%—
2022360,5281,230,12220.6%—
2021422,2853,734,68824.1%—
2020 (7 of 12 months)254,9302,234,970——
How these are worked out

Net generation and fuel burned are the monthly figures EIA publishes in its bulk electricity file, from the plant's Form 923 reports; a year is the sum of its months. Capacity factor is a full year's net generation over today's nameplate capacity times the hours in that year (8,784 in a leap year), so a plant uprated or partly retired since reads against its current size; heat rate is fuel burned over net generation, for plants that burn fuel. A year with fewer than twelve months stated has no capacity factor, and a value outside the plausible range is left blank rather than shown. By month, the charts apply the same rules to each month's own hours and fuel.

Sources

3 sources

Sources EIA-860M · GEM · EIA

Sources

  • EIA-860MOpen license · retrieved Nov 4, 2026
  • GEMOpen license, with credit · retrieved Oct 26, 2026Global Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
  • EIAOpen license · retrieved Nov 1, 2026Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)

Every source and license · Attribution

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