Tidal power Bioenergy 1 Biofuels 1 Biomass 1 Fluid dynamics 1 Fossil fuels 1 Geothermal Energy 1 Geothermal energy 1 Heat transfer 1 Hydro electricity 1 OTEC ( Ocean Thermal Power Energy Conversion) 1 Ocean Thermal Power Energy Conversion 1 Photovoltaic generation 1 Renewable energy 1 Solar radiation 1 Solar thermal energy 1 Solar water heating 1 Wave energy 1 Wave power 1 Wind energy 1 Wind power 1