The Long Duration Storage Energy EarthshotTM establishes a target to reduce the cost of grid-scale energy storage by 90% for systems that deliver 10+ hours of duration within this decade. Energy storage has the potential to accelerate full decarbonization of the electric grid. Electric vehicle applications require batteries with high energy density and fast-charging capabilities. . This report demonstrates what we can do with our industry partners to advance innovative long duration energy storage technologies that will shape our future—from batteries to hydrogen, supercapacitors, hydropower, and thermal energy. But it's not just about identifying the technologies that appear. .