Just as endemic plants can grow among solar panels, so too can crops, a technique known as agrivoltaics. Researchers are finding, for example, that things like cucumbers grow like crazy on rooftops. The panels create a unique microclimate that keeps crops from getting too hot in the summer and too cold in the winter, and uses about one-third of the water compared to growing in full sun. Now scientists are trying to figure out which crops — especially high-value ones that can make up the cost of installing solar — will do the best growing under panels, both on rooftops and on the ground.