Heat waves in Europe are becoming the norm. Strong sunlight isn’t the problem. The critical factor is temperature. Solar modules are evaluated under standard test conditions: 1,000 watts per square ...

We tend to think of sunlight as something temporary; here when the sun is up, gone when it moves to the other side of the world. But a new, molecular-scale breakthrough challenges that idea, ...

Scientists at UC Santa Barbara have created a remarkable new material that works like a “rechargeable solar battery,” storing sunlight inside tiny molecules and releasing it later as heat — even long ...