Solar Cells at 32.76% Efficiency, EV Batteries for Cities, and the EPA U-Turn: Green Tech’s Defining Week

From a record 32.76% efficiency in solar cells to EV-powered urban grids and BMW’s next-generation batteries, green technology is advancing on multiple fronts. But the US EPA’s reversal of its CO2 endangerment finding is a stark reminder that technological progress alone cannot secure the energy transition.