If you're trying to design your new house, think about putting in a bunch of big windows on the home's south side so that during the winter you can get a lot of sun. Make sure you have methods in place to keep excess heat out during the warmer summer months. For more help, consult a contractor who specializes in solar energy.
Find out if your local energy provider offers meter rollback programs. Once you have a solar energy system, you should consider joining one of these programs so you can sell the energy you produce to the main grid and draw the same amount of energy instead of purchasing an expensive battery system to store your power.