Lennox’ new SunSource Comfort System is the industry’s first practical application of photovoltaic solar technology. * An innovative, affordable renewable-energy resource for environmentally-conscious homeowners
* Allows you to reduce your carbon footprint, lower your energy bills and improve the comfort of your home
* Patent-pending technology uses a single 190-watt solar panel to generate power for the fan motor that moves air across the unit’s outdoor coil
* Reduces energy usage even on days with limited sun exposure
* Reduces residential energy consumption during periods of peak demand on the electrical grid

Source: http://www.lennox.com/products/sunsource.asp