Renewable energy uses energy sources that are continually replenished by nature—the sun, the wind, water, the Earth's heat, and plants. Renewable energy technologies turn these fuels into usable forms of energy—most often electricity, but also heat, chemicals, or mechanical power.
Solar collectors are the heart of most solar energy systems. The collector absorbs the sun's light energy and changes it into heat energy. Solar collectors heat a fluid, either air or liquid.
Designing and building an energy-efficient home that conforms to the many considerations faced by home builders can be a challenge. However, any house style can be made to require relatively minimal amounts of energy to heat and cool and be comfortable and healthy.
Landscaping is a critical element in building an energy efficient home. A few simple strategies can add up to big savings on your monthly electric bill.