Sun Power: Class I

Renewable Energy Sources Ultimate Source of the Energy Uses
Solar Nuclear fusion in the Sun Space Heating, cooking, drying, electricity, cooling, growing plants, solar toilets, hot water, light
Wind Uneven heating of the Earth's surface by the Sun, and also kinetic energy from Earth's rotation Sailing, electricity, drying, cooling, water pumping, wind mills, irrigation
Geothermal Nuclear fission inside the Earth Electricity, heating
Biomass Solar Energy via photosynthesis Food for people, electricity (landfill gas, wood gasification plants), heating (firewood), alternative fuels (ethanol, methanol)
Hydro electricity, grinding grain