Solar water heaters help homes cut energy bills by using sunlight instead of electricity. The system offers steady heating, ...

Seattle-area startup Hyviva is challenging the Tesla Powerwall with its hydrogen-fueled 'Lego brick' energy storage system.

Scientists are learning how to turn the chill of outer space into a quiet source of electricity, using the night sky itself as a heat sink. By carefully managing how surfaces shed heat after dark, ...

The startup built a compact solar-battery combo that connects directly to key household appliances, is easy to plug in, and ...

With its brilliant performance, a ridiculously good camera system, and two-day battery endurance, the Honor Magic8 Pro ends ...

Switching between Android and iOS has long meant juggling cables, cloud backups and half-working apps, but that era is ...

How Arizona’s Mesquite Solar complex became one of the nation’s largest solar sites and what its growth reveals about the ...