Renewable energy
SummaryOverviewMainstream technologiesEmerging technologiesComparison of the theoretical and practical potentials of different renewable energy technologiesMarket and industry trendsPolicyFinance
Renewable energy is usually understood as energy harnessed from continuously occurring natural phenomena. The International Energy Agency defines it as "energy derived from natural processes that are replenished at a faster rate than they are consumed". Solar power, wind power, hydroelectricity, geothermal energy, and biomass are widely agreed to be the main types of renewable energy. Renewable energy ofte