The real test will be whether strong performance and low costs hold up over years of operation.

Engineers at Osaka Metropolitan University have built an artificial-photosynthesis system that produces liquid solar fuel ...

Researchers at the University of California, Santa Barbara developed a “rechargeable solar battery” that stores sunlight directly in molecules and later releases the energy as heat powerful enough to ...

Forbes contributors publish independent expert analyses and insights. Dianne Plummer is an Energy Consultant and Certified Energy Manager. Rooftop solar has become one of the fastest-growing clean ...