TechnologyAll-Perovskite Solar Cells Crack 30% Efficiency for the First TimeChinese researchers have built the first all-perovskite tandem solar cell to surpass 30% certified efficiency, a milestone that pushes the cheap, flexible technology past long-time leader silicon.
NewsSolar and Wind With Batteries Now Beat Coal and Gas on Cost, IRENA FindsA new report from the International Renewable Energy Agency shows round-the-clock solar and wind paired with battery storage now deliver firm power at $54–$82 per megawatt-hour — undercutting new fossil fuel plants in the best regions.