Using the sun's energy to heat water is a green and economical choice for many families. This article delves into easy, ...

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 ...

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 ...

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

[Darryl] figured that a supercapacitor could do the job instead, and set about building a solar supercap power supply that could run various projects. The power supply is built to use a small 60 ...

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 ...