Battery energy storage systems (BESSes) are increasingly being adopted to improve efficiency and stability in power distribution networks. By storing energy from both renewable sources, such as solar ...

This story originally appeared on Vox and is part of the Climate Desk collaboration. The tricky thing about generating electricity is that for the most part, you pretty much have to use it or lose it.

More and more, big arrays of lithium-ion batteries are being hooked up to electrical grids around the U.S. to store power that can be discharged in times of high demand. But as more energy storage is ...