Energy & Green Tech

Cooling down solar cells, naturally

A bright, sunny, cloudless day might seem like the optimal setting for solar cells. But too much sun, and too much heat, can actually reduce the efficiency of photovoltaics.

Engineering

How to make homes cooler without cranking up the air conditioning

Temperatures around the world are soaring. Both California's Death Valley and China's Xinjiang region have seen temperatures climb above the 50℃ mark. A blistering heat wave is also sweeping across the Mediterranean, causing ...

Energy & Green Tech

Cheaper, changing and crucial: the rise of solar power

Generating power from sunlight bouncing off the ground, working at night, even helping to grow strawberries: solar panel technology is evolving fast as costs plummet for a key segment of the world's energy transition.