According to the most recent data from the World Bank, 15 percent of the world’s population—approximately 1.1 billion people—lacked access to electricity in 2014. In 1994, approximately 27 percent of ...

Our energy-hungry and environmentally aware society has been slow to make good use of the sun’s “free” power. But now it’s finally taking off. Using the sun’s heat directly, for cooking and other ...

Solar window chargers have several advantages when compared with other charger types. You can stick this DIY solar window charger to the inside of a glass window with the solar panel facing out and ...

If you want your plants to stay healthy, you need to make sure they stay watered. [Dimbit] decided to build his own solar powered circuit to help automatically keep his plants healthy. Like many ...

Solar panels are an increasingly efficient, cost-effective, and higher-power-density renewable-energy source, though most ...