The 25-year study of California farmland found farmers who added solar panels, a practice known as agrivoltaics, made more money per acre than those who did not. The research shows crops and solar work together, especially when panels are placed on low-yield acres, or spots not growing as much food due to poor soil or too much shade.
The research indicates the approach helps farmers boost income without reducing food production.
Jake Stid, a graduate student at Michigan State and lead author of the study, said farmers can also benefit through a system called Net Energy Metering.
"A return structure where farmers can directly in many cases, interconnect so they can use the electricity to offset their own needs, as well as sell excess generation, excess electricity back to the utility for a discounted rate," Stid outlined.
Researchers estimate California land now used for solar panels could have fed 86,000 people had it stayed in crops. The study looked at the trade-off between farming and solar energy, while critics warned it could worsen food security by reducing farmland.
Stid highlighted his team chose California's Central Valley as the focus of the research due to its significant contribution to both national and global food production, particularly for a variety of orchard crops.
"It's a really, really agriculturally valuable state and it also happens to be a pretty water-stressed state," Stid pointed out. "Specifically, the Central Valley has been experiencing pretty significant drought, as well as over allocation of water resources."
Some farmers expressed concern about solar panels shading crops, affecting growth and reducing yields. Stid hopes to expand his research on solar arrays and food production nationwide, contributing to the ongoing debate among farmers on how to use land sustainably, without harming food production.
