CleanPowerDaily

TODAY'S LEAD: California's Tumbleweed battery project has become the first major U.S. installation capable of discharging for eight hours straight — double the industry standard — marking a milestone that could reshape how grid operators think about storing renewable energy overnight. Meanwhile, the data center energy crisis is deepening, with new legislative battles erupting in Pennsylvania and environmental warnings emerging in Washington state. KEY DEVELOPMENTS California Deploys First 8-Hour