So you've already traded driving for biking on short trips, started eating less meat and more local vegetables, and are consistently buying carbon offsets to counteract your plane trips. Ready for a bigger green challenge? Try switching to alternative energy at home. Instead of depending solely on the electric grid, you can harness solar energy, wind power, hydropower, or even geothermal energy to keep your home warm in the winter, cool in the summer, and buzzing with electricity.

Read on for a sampling of tips, or click on over to our guide for How to Go Green: Alternative Energy on Planet Green for the full story.

It sounds like a daunting process, but making the transition to alternative energy doesn?t have to be painful. The easiest way to simplify is to start cutting back on your energy use right now, since using less means you?ll be responsible for providing less (and trust us: come the rainy season, you and your solar panels will be grateful for that). Read on for more alternative energy tips, and for an even more comprehensive guide, head over to Planet Green?s guide for How to Go Green: Alternative Energy.