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Today's energy system is dominated by fossil fuels: coal, natural gas, and oil. Among potential alternatives, hydropower and nuclear fission play important roles but are now relatively stagnant; solar and wind are small but rapidly growing options; and geothermal, ocean, and fusion power play niche roles or are still under development, but they may have great potential in the future.


Production Overview
Environmental Impacts of Energy
Coal
Natural Gas
Oil
Biomass and Biofuels
Hydropower
Nuclear Fission
Nuclear Fusion
Solar Power
Wind Power
Geothermal
Ocean Energy
Exotic Energy Sources