Renewable solar energy is an excellent source of electricity. Rather than using dwindling fossil fuels (if you believe in the peak oil theory) to feed power plants, we can take advantage of renewable solar energy. Renewable solar energies come with very little pollution when they convert electricity from solar panels or thermal devices and once installed will not contribute to the effects of so-called global warming.

The use of passive solar energy in housing involves the placement of the building for optimum benefit, the building design and position of suitable building components to make full use of sunlight for day lighting, passive heating, and/or passive cooling. Apart from saving energy, the primary benefit of a passive solar home is the improved comfort of its occupants.