Residential solar energy systems paired with battery storage—generally called solar-plus-storage systems—provide power regardless of the weather or the time of day without having to rely on backup power from the grid. Check out some of the benefits.
[pdf] The collaborative project “ AddESun ” aiming to safeguard the future of lead-acid batteries was launched in September 2017. The list of project goals includes a more sustainable production, improved charging behavior, longer service life and higher power density.
[pdf] The "Juche" Flow Battery: A National Pride Inspired by vanadium flow batteries, scientists claim a proprietary design using locally mined zinc. Early tests show 65% efficiency—not stellar, but a start. State media calls it “a revolutionary leap in energy storage self-reliance.”
[pdf] 
