Forbes contributors publish independent expert analyses and insights. Dianne Plummer is an Energy Consultant and Certified Energy Manager. In 2024, rooftop solar was the fastest-growing source of ...

Many homeowners are surprised to learn that most solar systems stop working during an outage — even on sunny days. That’s why many people add a backup generator (or solar batteries) to make sure their ...

One typical instance of technology that does not require electricity is solar-powered calculators. These calculators are run on solar cells, which transform sunshine into electricity. The calculator ...