en.wikipedia.org/wiki/Alternative_energy

Alternative energy is any energy source that is an alternative to fossil fuel. These alternatives .... Renewable energy is generated from natural resources—such as sunlight, wind, rain, tides and geothermal heat—which are renewable (naturally ...

www.renewableresourcescoalition.org/alternative-energy-sources

Nov 15, 2016 ... This has led to the rise of a number of alternative energy sources. While the viability of each can be argued, they all contribute something ...

www.eia.gov/energyexplained/?page=renewable_home

Renewable energy is energy from sources that are naturally replenishing but flow -limited; renewable resources are virtually inexhaustible in duration but limited ...

us.sunpower.com/complete-guide-7-renewable-energy-sources

All told, though, alternative energy resources pack a much lighter environmental footprint than fossil fuels. This is why renewable energy sources are so ...

www.energy.gov/science-innovation/energy-sources

The Energy Department is developing new technologies that will store renewable energy for use when the wind isn't blowing and the sun isn't shining.

www.altenergy.org

Enter, alternative energy - any energy source that provides an alternative to the ... energy will need to come from solar, wind, and other renewable resources.

ardour.snetglobalindexes.com/alternative-energy-resources

Renewable and alternative energy resources exist as huge but relatively untapped sources of clean energy to power our economy into the future. Existing in ...

alternativeenergysourcesv.com

As promising as the use of alternative sources of energy may sound, it is still under research as to how to tap energy from these resources in the most efficient  ...

www.renewableenergyworld.com/index/tech.html

The United States currently relies heavily on coal, oil, and natural gas for its energy. Fossil fuels are non-renewable, that is, they draw on finite resources that will ...