This document discusses various renewable energy resources including solar energy, wind energy, ocean thermal energy, geothermal energy, and biomass or biogas energy. Solar energy can be converted to electrical energy using solar plates and is a clean source that does not produce carbon dioxide or affect the environment, though it depends on weather conditions. Wind power is also renewable, clean, and free, helping to reduce dependence on fossil fuels and greenhouse gas emissions. Ocean thermal energy comes from the sun's heat and tidal/wave mechanical energy in oceans. Geothermal energy taps into heat from the Earth's core a few miles beneath the surface. Biomass/biogas comes from waste residues and managed forests/crops. Renewable resources are