Primary energy consumption by energy source 2019 total 100 2 quadrillion british thermal units btu total 11 4 quadrillion btu 2 geothermal 9 solar 24 wind 4 biomass waste 20 biofuels 20 wood 22 hydroelectric biomass 43 renewable energy 11 natural gas 32 petroleum 37 nuclear electric power 8.
Alternative energy solar power information.
Select footage courtesy nasa 5.
From solar to wind find out more about alternative energy the fastest growing source of energy in the world and how we can use it to combat climate change.
Over the past few years the cost of a solar energy system has dropped significantly helping to give more american families and business access to affordable clean energy.
Renewable energy usable energy derived from replenishable sources such as the sun solar energy wind wind power rivers hydroelectric power hot springs geothermal energy tides tidal power and biomass biofuels.
The tremendous growth in the u s.
Solar energy is the technology used to harness the sun s energy and make it useable.
These include biomass energy wind energy solar energy geothermal energy hydroelectric energy sources.
Through a portfolio of r d efforts the energy department remains committed to leveraging america.
Solar industry is helping to pave the way to a cleaner more sustainable energy future.