Photovoltaic technology converts light directly into electricity. And, in recent years, one form of photovoltaics - solar energy - has undergone enormous increase in popularity, efficiency and availability.

In fact, photovoltaic energy production has doubled every two years, (increasing by an average of 48% per year, worldwide usage, since 2002), making it the fastest-growing energy technology worldwide. Around 90% of generating capacity comes from super-efficient grid-tied electrical systems, such as Photovoltaic Solar Panels. These may be erected on the ground, or built into the roof and/or walls of a building.