Marble Falls
Hydro power plant in Burnet County, Texas. 39.6 MW of nameplate capacity across 2 generators, operated by Lower Colorado River Authority.
Also known as Starcke Power Plant · Marble Falls Power Plant · EIA plant 3599
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Key facts
- Capacity
- 39.6 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- September 1951First generator online
- Operator
- Lower Colorado River AuthorityEIA operator ID 11269
- Grid
- ERCOTBalancing authority ERCO
- Price nodes
- 1 ERCOT nodeResource nodes with prices
- Location
- Burnet County, TX30.5553, −98.2576
- EIA plant ID
- 3599EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Marble Falls produces
Free · EIA-923Net generation, 2025
23.8 GWh
23,788 MWh, final
Capacity factor, 2025
6.9%
2024: 4.4%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
10.1–35.0
GWh a year. Low 2022, high 2016
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 25,386 | Not reported | 12 of 12 |
| 2001 | 24,720 | Not reported | 12 of 12 |
| 2002 | 22,768 | Not reported | 12 of 12 |
| 2003 | 21,545 | Not reported | 12 of 12 |
| 2004 | 37,347 | Not reported | 12 of 12 |
| 2005 | 37,633 | Not reported | 12 of 12 |
| 2006 | 16,665 | Not reported | 12 of 12 |
| 2007 | 37,750 | Not reported | 12 of 12 |
| 2008 | 16,869 | Not reported | 12 of 12 |
| 2009 | 23,644 | Not reported | 12 of 12 |
| 2010 | 20,208 | 5.2% | 12 of 12 |
| 2011 | 15,669 | 4.1% | 12 of 12 |
| 2012 | 8,886 | 2.3% | 12 of 12 |
| 2013 | 9,015 | 2.3% | 12 of 12 |
| 2014 | 6,091 | 1.6% | 12 of 12 |
| 2015 | 13,830 | Not reported | 12 of 12 |
| 2016 | 34,982 | 10.1% | 12 of 12 |
| 2017 | 14,315 | 4.1% | 12 of 12 |
| 2018 | 16,647 | 4.8% | 12 of 12 |
| 2019 | 21,236 | 6.1% | 12 of 12 |
| 2020 | 13,663 | 3.9% | 12 of 12 |
| 2021 | 11,338 | 3.3% | 12 of 12 |
| 2022 | 10,057 | 2.9% | 12 of 12 |
| 2023 | 10,162 | 2.9% | 12 of 12 |
| 2024 | 15,233 | 4.4% | 12 of 12 |
| 2025 | 23,788 | 6.9% | 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 account · ERCOTEmissions
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 | 19.8 | October 1951 |
| 2 | Conventional Hydroelectric | 19.8 | September 1951 |
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 Lower Colorado River Authority 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 Marble Falls
More plants operated by Lower Colorado River Authority
Questions about Marble Falls
How much power does Marble Falls produce?
Marble Falls reported 23,788 MWh (23.8 GWh) of net generation in 2025, a 6.9% capacity factor on 39.6 MW of nameplate capacity.
Where is Marble Falls?
Marble Falls is in Burnet County, Texas, at 30.5553, −98.2576. It is in the Electric Reliability Council of Texas, Inc. balancing area (ERCO).
Who operates Marble Falls?
EIA-860M for August 2026 lists Lower Colorado River Authority as the operator (EIA operator ID 11269). The operator is not always the owner.
When did Marble Falls start operating?
Its first generator began operating in September 1951, according to EIA-860M.
Does InfraMap have power prices for Marble Falls?
Yes. InfraMap has ERCOT day-ahead and real-time prices at 1 price node linked to Marble Falls, 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
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page