The government has set up several incentive programs to help consumers switch to renewable energy sources. Contact local government and discover the programs that exist locally. You may qualify to have wind or solar power installed at no cost to you. At a minimum they may allow you to deduct the charges from your taxes.
A great old fashioned way to heat your home and to save on energy is to use a wood burner. There are newer, more modern versions of wood burners called pellet stoves. These stoves burn pellets that are made of compressed sawdust. Both of these methods of heat burn with few emissions and do not require an EPA certification.
Visit http://CenterPointEnergy.com/HSP for more information.
A great tip for green energy use is to ensure that your home is properly insulated and has a high R value with the insulation. The best insulation has a higher R value. Not only will you save energy, but the additional insulation will keep out excessive noise from outside your home.