A home battery backup system can keep your devices powered during an outage. But how long does one last and is it worth the ...

Don't drain your phone's battery, use dedicated lights instead. USB rechargeable flashlights can draw power from battery banks, portable power stations, generators, and or even a car. Solar-powered ...

Perovskite solar cells are a flexible and sustainable alternative to conventional silicon-based solar cells. Researchers were able to find -- within only a few weeks -- new organic molecules that ...

Best solar panel kit for campervans - Dreaming of living off-grid? Here’s how you can power life on the road - almost for free ...