The challenge of solar-powered energy has always been the means to store it. And the intermittency of solar and wind energy makes that storage capability essential. Energy from the sun and wind can ...

Chinese researchers have built a solar redox flow battery (SRFB) that can harvest sunlight and store energy at the same time, while reaching a solar-to-electricity conversion efficiency of 4.2 percent ...

CR's experts pick the best portable solar panels and battery chargers to power devices like phones and laptops, plus back-up batteries and power stations.

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 ...