Renewable Energies And Solar Power

This document provides an overview of renewable energy and solar technologies. It discusses policies promoting renewable energy in over 65 countries and investments exceeding $100 billion in 2007. Specific renewable technologies summarized include solar power (photovoltaics, concentrating solar power, solar hot water), wind power, biomass, geothermal, and hydroelectric. The history of utilizing solar energy from the 7th century BC through modern developments is also outlined.