Origis Energy has brought three additional phases of its Rockhound Solar complex into commercial operation, lifting the Ector County, West Texas facility's total generating capacity to nearly 1 gigawatt direct current (GWdc). The newly activated phases account for approximately 500 MW of the site's cumulative output — but the project remains only about halfway to its ultimate scale.

A Phased Build Toward 2 GW

The Rockhound complex is designed to ultimately surpass 2 GW of capacity, making the current milestone a midpoint rather than a finish line. When fully built out, the facility is expected to rank among the largest solar installations in the United States. The project is located in Ector County in West Texas, a region that has become a focal point for large-scale renewable energy development due to its high solar irradiance and available land.

The three phases now entering commercial operation represent the latest increment in what Origis Energy has structured as a staged construction effort. Rather than delivering the full project at once, the developer has progressively added capacity, allowing sections to begin generating revenue while construction continues on adjacent parcels.

Solar Plus Storage at Scale

Source reporting describes Rockhound as a solar-plus-storage complex, signaling that the project incorporates battery energy storage alongside its photovoltaic generation capacity. The addition of storage at a facility of this size is consistent with broader trends in Texas, where grid operators and developers have prioritized pairing generation with storage to improve dispatchability on the Electric Reliability Council of Texas (ERCOT) network.

No specific storage capacity figures were included in the available source material, and the precise timeline for completing the remaining phases has not been publicly disclosed in the reports reviewed. The full build-out target of more than 2 GW, however, has been consistently cited across multiple sources covering the milestone.

Origis Energy's Footprint in Texas

The Rockhound development reflects Origis Energy's continued expansion in the Texas market, where the company has pursued utility-scale solar at a pace that has placed it among the more active developers in the state. Reaching the 1 GW threshold — even on a partial-completion basis — positions Rockhound as one of the larger single-site solar projects currently operating in the country.

West Texas has attracted substantial renewable investment in recent years, with developers drawn by the region's solar resources and its proximity to ERCOT transmission infrastructure. Projects of Rockhound's scale require extensive interconnection coordination and multi-year construction schedules, and the phased approach Origis has employed allows the facility to contribute to the grid incrementally as each section clears commissioning.

With roughly half the project now operational, attention will turn to the pace at which Origis brings the remaining capacity online. The company has not announced a specific completion date for the full 2-GW-plus buildout in the sources reviewed, but the sequential phase completions to date suggest construction activity at the site remains active.