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.
Alternative energy solar power information.
Select footage courtesy nasa 5.
The tremendous growth in the u s.
As of 2011 the technology produced less than one tenth of one percent of global energy demand.
Combined with the use of recycling the use of clean alternative energies such as the home use of solar power systems will help ensure man s survival into the 21st century and beyond.
Through a portfolio of r d efforts the energy department remains committed to leveraging america.
Several forms have become price competitive with energy derived from fossil fuels.
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.
These include biomass energy wind energy solar energy geothermal energy hydroelectric energy sources.