This remarkable feat has been running successfully for an astonishing eight years without a single battery replacement, as ...

Pyrography pens don’t cost that much. The variable power supply they plug into, though: that’s another story. Those cost more than they probably should. [td0g] took the plunge into pyrography ...

[Guido Socher] built himself a great little bench power supply that’s able to put out 30 Volts at 2 Amps. Instead of taking the easy way out by putting a few taps on an ATX power supply ...

A solar panel array may look passive and innocent, but it's generating enough electricity to power a home, and all it takes ...

DIY solar panels are best used to power single devices or small systems like a cabin, tiny home, or RV. According to the National Renewable Energy Laboratory (NREL), they can only supply around 10 ...

Two new solar products from British ... charge an electric car or help power a home. The Solivus Arc is expected to produce 1,000 kWh a year Aiming to supply an average of 1,000 kWh a year in ...