Passive solar building design is sustainable building design that takes advantage of the climate to maintain a confortable temperature in the home. Windows, walls and floors are made to collect, store and distribute solar energy in the form of heat in winter and disperse solar heat in summer. Passive design reduces the need for you to use heating or cooling devices such as air-conditioners, gas heaters or other forms of electrical devices to control the temperature.
Solar PV systems or photovoltaic technology is technology that converts the energy from sunlight into electrical energy for your home. Solar PV technology has been used to power homes for many years and residential solar PV systems can offset much of your household electrical and power needs.