In this post I would like to draw attention to the website www.builditsolar.com which is a very nice online repository of hundreds of DIY renewable energy and energy efficiency projects, often complete with drawings and detailed show-how.

For example, one section of projects is about Passive and Active Cooling. Like other sections, it is quite comprehensive, with information on everything from online tools to properly size and shade south facing windows to an overview of passive cooling techniques and everything in between.

There are years’ worth of projects in there for the DIY enthusiast, and they all share the same objective – reduce your monthly energy cost and have fun at the same time. Easily one of the best sites out there.