You can save a little power in a lot of places. These solar gadgets cover household cooling, portable power, trickle charging ...

Lawal Sheriff Olakunle with his solar fan. Living in Lagos, 33-year-old Lawal Sheriff Olakunle is used to electricity shortages. He considers 10–15 hours of electricity a day to be stable power. But ...

There are a variety of situations where you want to cool off an area that doesn't have an electrical outlet nearby, like a shed or greenhouse, or a space that's tough to access, like an attic. You can ...

We may receive a commission on purchases made from links. In the midst of summer, we're always looking for ways to keep our vehicles as cool as possible, especially if you're on a car camping ...

Cooling your home this summer will likely cost more than ever. Across the U.S., residential electricity bills are climbing fast, just as forecasters warn of another season of unrelenting heat.

The easiest way of making a solar fan is to connect the solar PV panel to a DC fan of a matching voltage and power rating. This simple arrangement does work, but has few serious drawbacks: The system ...