Want to put solar panels on the house? Start saving… solar power is a great investment, but it is an investment… often a hefty one. If you’d like to get started with something a little less ambitious (but more affordable), you’ll find a number of good sources out there for a whole range of solar DIY projects. Voltaic, best known for its solar backpack, has joined more well-known sites such as Gary Reysa ’s Build It Solar and Mother Earth News with its own collection of do-it-yourself