Construction begins on Twelvemile Solar 1 and 2 projects in Oklahoma

UA-based renewable energy company Leeward Renewable Energy (LRE) has commenced construction of its Twelvemile Solar 1 and 2 projects, a combined 152MW solar facility in the south of the US state of Oklahoma.

The initiatives are part of LRE’s extensive solar portfolio in the state, which totals 724MW, including the previously announced Mayes County solar portfolio.

The Twelvemile Solar projects are expected to come online in early 2026, enhancing reliable, cost-effective energy and fostering ongoing investment and economic growth in the region.

LRE chief commercial officer Eran Mahrer stated: “As America’s energy needs grow, projects like Twelvemile 1 and 2 are critical to ensuring reliable, affordable power.

“This investment not only supports a more resilient grid but also fuels regional growth by creating jobs, attracting businesses and strengthening infrastructure in southern Oklahoma, which is critical in maintaining and continuing to attract economic development so important to the region.

“Guided by responsible development and a deep commitment to domestic content, local sourcing and community-focused growth, we are delivering projects with lasting impact.”

LRE acquired the Twelvemile portfolio from Red River Renewable Energy, a collaboration between SunChase Power and Eolian. It worked closely with both entities during the initial development phases.

Eolian CEO Aaron Zubaty stated: “These solar projects will be the largest facilities of their type in Oklahoma […] and will immediately help to reduce strain on the grid during peak summer hours of demand that define resource adequacy requirements.

“Power markets and resource supply portfolios that embrace multiple technologies can best withstand the increasing impact of severe weather events and fuel supply disruptions.”

Twelvemile 1 and 2 will generate $29m in state and local property tax revenue throughout their operational life, and will create up to 350 construction jobs at peak workforce, enhancing the local economy and strengthening regional infrastructure.

SunChase Power vice-president Teran Smith stated: “The Mayes and Twelvemile Solar projects are the result of strategic siting and early collaboration. We are proud to see these investments bring long-term benefits to Oklahoma’s communities and electric grid.”

In January 2025, LRE and Google concluded power purchase agreements (PPAs) for 700 megawatts alternating current of solar energy projects.

These projects are supported by Google to improve the reliability of the state’s electric grid while also enhancing the tech giant’s data centre operations.