This friendly, hands-on guide is packed with tips for making your home more energy-efficient though solar power—and helping the planet at the same time. You’ll see how to survey your home to determine your current household energy efficiency and use, and evaluate where solar power would best benefit you. You’ll also calculate what the return on your investment will be before you make any decisions. Once you’ve decided on a project, you’ll see whether it’s best to hire a contractor or do it yourself.