Renewable Energy

Renewable energy utilizes natural resources such as sunlight, wind, tides and geothermal heat, which are naturally replenished. Renewable energy technologies range from solar power, wind power, and hydroelectricity to biomass and biofuels for transportation. About 13 percent of primary energy comes from renewables although the technical potential for their use is very large, exceeding all other readily available sources. Renewable energy sources worldwide in 2005. Off-grid electric and ground source heat pumps not included. Source: Renewable energy technologies are sometimes criticised for being unreliable or unsightly, yet the market is growing for many forms of renewable energy