Because the cheapest form of energy is the one you never use.
Building green protects ecosystems and improves air and water quality.
Passive solar is the logical first choice of energy conscious buyers and builders.
Solar ThermalStorage of solar energy in water has been a proven method over many years.
Electricity from the sun is free and clean.
Nowhere is the potential for renewable resources more visible than in wind energy.
There are three basic alternative fuels — biodiesel, ethanol, and electricity.
Biomass is any organic form of stored solar energy used as a fuel source.