From a small California winery to a large-scale energy project in China, floating photovoltaics — or “floatovoltaics”— are gaining in popularity. Commonly installed over artificial water bodies, from irrigation ponds and reservoirs to wastewater treatment plants, floating solar projects can maximize space for producing clean energy while sparing natural lands.

As California faces pressure to grow both food and energy while protecting biodiversity — all on a finite amount of land — a trend is emerging in the field of clean energy: multi-use solar projects, or sustainable voltaics.

As part of a historic partnership between the University of California and the state of California, UC today announced it is awarding over $80 million in climate action grants. The grants will spur implementation of solutions that directly address state climate priorities. 

Four UC Davis projects are among the grantees. They include: 

People are increasingly trying to grow both food and clean energy on the same land to help meet the challenges of climate change, drought and a growing global population that just topped 8 billion. This effort includes agrivoltaics, in which crops are grown under the shade of solar panels, ideally with less water.

Now scientists from the University of California, Davis, are investigating how to better harvest the sun — and its optimal light spectrum — to make agrivoltaic systems more efficient in arid agricultural regions like California. 

A new project led by the Wild Energy Initiative at UC Davis will study pollinator habitat restoration at a photovoltaic solar facility operated on campus by SunPower Corp.

With their tough skins, pointy armor and legendary stamina, cacti are made to defend themselves from whatever nature throws at them. 

But large solar energy facilities are one threat that cacti weren’t built to withstand, according to a study by the University of California, Davis.