California Is Turning Dying Farmland Into the World's Largest Solar Project

The math in California's San Joaquin Valley has stopped working for farming. Water deliveries from federal and state sources have been shrinking for decades. New state groundwater rules are about to get dramatically stricter. And the land — hundreds of thousands of acres of some of the most productive agricultural real estate in the country — is going to sit idle unless someone figures out what else to do with it.

The Westlands Water District thinks it has an answer. Turn the farmland into solar panels.

Not a few fields. Not a pilot program. The Valley Clean Infrastructure Plan would convert roughly 136,000 acres of fallowed and water-starved land into a solar and battery storage network capable of producing about 21 gigawatts of clean power — an amount roughly equal to all the large-scale solar California currently has on its grid.

"This is not only the largest project in California, or the United States," said Jeff Fortune, president of the Westlands Water District board. "This will be the largest project in the world."

Why the Water Is Gone

Westlands delivers water to farms across a 1,000-square-mile stretch of western Fresno and Kings counties — one of the most agriculturally productive regions on Earth. For years, farmers supplemented unreliable surface water deliveries by pumping deep groundwater. California's Sustainable Groundwater Management Act is shutting that door. Aquifers in the San Joaquin Valley must reach sustainability by the early 2040s, which means a dramatic reduction in how much water farmers can pump. District officials say hundreds of thousands of acres will have to be fallowed as a result.

A lot of the land targeted for solar is already essentially unworkable — drainage problems and soil salinity have made it difficult or impossible to farm regardless of water availability. The district's position is simple. If you can't grow food on it, grow energy.

"The way we look at it is as a new crop," said Jeremy Hughes, a Westlands board member and fifth-generation farmer. "We're harvesting the sun and producing electricity."

How It Would Actually Work

Westlands isn't becoming a utility. A 2024 state law gave the district authority to generate electricity, build transmission infrastructure, and sell power through California's grid. The plan involves using some electricity locally to run energy-intensive water pumping and irrigation systems — potentially lowering costs for farmers still in operation. Most power would be sold into the state grid through the California Independent System Operator.

The project also calls for roughly 70 miles of new high-voltage transmission lines and five substations — infrastructure that Hughes argues is actually the core of the whole plan.

"In that sense, this is a transmission play, not a solar play," he said. "The solar is doable because of the transmission."

Those new lines would ease a longstanding congestion problem between Northern and Southern California, making the project valuable to the state beyond just the power it generates.

The Human Cost Nobody Is Fully Answering

For farming communities in the region, the pivot to solar raises questions that don't have comfortable answers yet. Rosa Ramirez, a longtime farmworker in the area, talked about what she's watched disappear. "Back in the '90s, they used to have tomato fields, lettuce, onions. Now there's less and less."

Her son Danny asked the question directly — will his mother have work in a solar economy? She has no experience with that industry. Nobody has given a clear answer.

State law requires the project to include a community benefits plan delivering jobs, investment, and environmental improvements to nearby towns — communities already dealing with high unemployment, unsafe drinking water, and some of California's highest electricity bills. The problem is that community funding tied to solar revenues would likely only begin flowing years after construction starts. For people struggling right now, that timeline is cold comfort.

"We believe everybody should participate," said Espi Sandoval of Rural Communities Rising. "Residents want to be part of conversations before decisions are made."

Where Things Stand

Nothing has been built yet. The project is expected to roll out over the next decade or more under an environmental framework approved in late 2024. Major questions remain — which utilities will buy the electricity, how much goes local versus statewide, when community funding actually starts moving.

For the farmers themselves, the pitch isn't about abandoning agriculture. It's about surviving its limits.

"If we could keep farming all of it, we would," said Rebecca Kaser, whose family has worked the district for generations. "This is a tool in the toolbox to at least stay farming with the little that we can."

That's the honest framing of what's happening here. Not a vision for the future so much as an adaptation to a reality that has already arrived. The water isn't coming back. The land has to do something. And for 136,000 acres of California that something is starting to look a lot like solar panels.

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