If your local surplus store is fresh out of supercapacitors but you’re just really in the mood to fire stuff at other stuff, check out [austiwawa]’s step-by-step guide to building a thermal cannon. It ...

For DIY enthusiasts in the green energy community, homemade lithium-ion battery packs have long been a holy grail. For everything from home solar energy storage to garage-built electric bicycles, ...

A CNET survey confirms that 78% of US adults are concerned about rising home energy costs. So, it's no surprise that many homeowners are embracing a DIY approach to renovations, from upgrading ...