Amistad Dam & Power
Val Verde County, Texas · EIA plant ID 6128 · Operator: International Bound & Wtr Comm
Nameplate66MWSummer 58 MW
Generators2in service
Net generation39GWh12 mo to Dec 2025
Capacity factor8%hydro units, summer MW
Heat rate—thermal plants only
First online1983
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), hydro units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 74.5 | 12.1% | — |
| 2002 | 45 | 7.3% | — |
| 2003 | 31.1 | 5.1% | — |
| 2004 | 2.2 | 0.4% | — |
| 2005 | 107.6 | 21.2% | — |
| 2006 | 90 | 17.7% | — |
| 2007 | 148.4 | 29.2% | — |
| 2008 | 167.7 | 32.9% | — |
| 2009 | 83.2 | 16.4% | — |
| 2010 | 147 | 28.9% | — |
| 2011 | 78.7 | 15.5% | — |
| 2012 | 166.9 | 32.8% | — |
| 2013 | 85.9 | 16.9% | — |
| 2014 | 74.6 | 14.7% | — |
| 2015 | 48.5 | 9.6% | — |
| 2016 | 48.6 | 9.5% | — |
| 2017 | 145.7 | 28.7% | — |
| 2018 | 93.4 | 18.4% | — |
| 2019 | 96.2 | 18.9% | — |
| 2020 | 105.2 | 20.7% | — |
| 2021 | 59.5 | 11.7% | — |
| 2022 | 63.8 | 12.6% | — |
| 2023 | 87.6 | 17.3% | — |
| 2024 | 50.6 | 9.9% | — |
| 2025 | 39.2 | 7.7% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 33 | 29 | Jun 1983 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 33 | 29 | Oct 1983 | Operating | — | coming soon |
Owner / operator
Operator: International Bound & Wtr Comm. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| International Bound & Wtr Comm | 100.0% | 66 MW |
Nearby plants
Within 80 km.
| WAL447 | 1 MW | 16.5 km |
| Tierra Seca | 100 MW | 21.3 km |
| Hamilton BESS | 10 MW | 22.1 km |
| Evans Creek Energy Storage Project | — | 33.8 km |
| Rocksprings | 149 MW | 40.2 km |
| Antlia | 70 MW | 46.7 km |