Massive Solar Project Blooms in California's Central Valley

The Harris Ranch Resort solar farm will be the largest in the U.S. once completed.

Mar. 29, 2026 at 3:25pm

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A massive new solar energy project is taking shape in California's San Joaquin Valley, centered around the Harris Ranch Resort rest stop along Interstate 5. The sprawling solar farm, which will cover over 2,000 acres, is set to become the largest solar project in the United States once completed.

Why it matters

The Harris Ranch solar project is a significant milestone in California's push to transition to renewable energy sources and reduce its carbon footprint. As the state aims to achieve 100% clean electricity by 2045, projects like this will play a crucial role in meeting those ambitious climate goals.

The details

The solar farm, which is being developed by Recurrent Energy, a subsidiary of Canadian Solar, will feature over 2 million solar panels and generate up to 400 megawatts of electricity. This will make it the largest solar project in the U.S., surpassing the current record holder, the 392-megawatt Solar Star project in Rosamond, California.

  • Construction on the Harris Ranch solar project began in 2024.
  • The project is expected to be fully operational by the end of 2026.

The players

Recurrent Energy

A subsidiary of Canadian Solar that is developing the Harris Ranch solar project.

Canadian Solar

A global solar energy company that owns Recurrent Energy.

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What’s next

The project is expected to be fully operational by the end of 2026, at which point it will become the largest solar farm in the United States.

The takeaway

The Harris Ranch solar project represents a significant milestone in California's transition to renewable energy, showcasing the state's commitment to reducing its carbon footprint and leading the nation in the adoption of large-scale solar power.