Solar Proponent's 837 MW Tehuacana Creek 1 solar farm — paired with 418 MW of battery storage — is on track to come online in Navarro County, Texas this year, making it the single largest utility-scale solar PV project to reach commercial operation in the United States in 2026.
$1.1 Billion, 1.5 Million Panels
The Plano-based developer has finished installing roughly 1.5 million solar modules across a 6,700-acre site east of Dallas. Industrial Info Resources pegs the build cost at about $1.1 billion, with EIA filings expecting first power in October.
Texas Solar Tipping Point
Tehuacana Creek 1 anchors a record build year on ERCOT. The EIA expects US developers to add 86 GW of new utility-scale capacity in 2026, 51% solar and another 28% battery storage. Texas alone is on track for roughly 40% of new US solar — large enough that solar generation is forecast to surpass coal in ERCOT for the first time this year.
Battery Storage Stacks Up Behind It
Other Texas mega-projects following Tehuacana Creek 1 include the 621 MW Lunis Creek BESS in Jackson County and the 500 MW Bellefield 2 Solar & Storage Farm in Kern County, California. For more on the storage build-out, see our coverage of Fox ESS locking 10 GWh of Australian storage and TagEnergy's 1 GW Morwell BESS Victorian approval.
Reporting based on coverage from EIA, PV Tech, PV Magazine, Industrial Info Resources and Cleanview.