Photovoltaic, or PV, systems are fast becoming viable alternatives to standard energy sources as technology and design improvements continue to lower costs and increase efficiency. These systems, which convert the sun's radiant heat, work in all climates and can be combined with a home's primary electricity provider as a supplemental energy source - or even configured as an "off-grid" self-sustainable system.
   
    PV isn't just for homes and businesses, as applications exist for almost everything requiring electricity - from watercraft to well pumps.