Renewable energy resources and significant opportunities for energy efficiency exist over wide geographical areas, in contrast to other energy sources, which are concentrated in a limited number of countries.

Renewable energy sources such as solar photovoltaics, wind, wave, and tidal are, due to their intermittency, not considered " base load " but can still add power to the grid.

* Erneuerbare Energien Gesetz ( Renewable Energy Law ), a German law to extend generation of electricity from renewable sources

The Amendment creates a national Renewable Energy Standard that requires electric suppliers to produce 15 percent of their energy from renewable sources, 4 percent of which can come from efficiency, by the year 2020.

Renewable sources, such as solar power and wind power may be available where cell sites are placed.

Renewable energy does not include energy sources which are traditionally thought to be dependent upon limited resources, such as fossil fuels and nuclear fission power.

In Chapter Six of the policy, titled " Nature ’ s Power: Increasing America ’ s Use of Renewable and Alternative Energy ", domestic energy sources such as wind, geothermal, solar and bio-fuel are cited as necessary to stabilize and protect the United States ' interests.

* Renewable Electricity Standard, a legal requirement for a system of regulated utilities to derive a minimum fraction of electric power from renewable sources

A Green Certificate-terminology used in Europe-also known as Renewable Energy Certificates ( RECs ) in the USA, are a tradable commodity proving that certain electricity is generated using renewable energy sources.

There are over 100 student clubs and organizations on campus, including the college radio station WMCN, the Macalester Peace and Justice Committee, the Experimental College, Student Labor Action Coalition, African Music Ensemble, Macalester Gaming Society, Macalester Mock Trial, Mac Dems, Mac GOP, Mac Greens, Bad Comedy, Fresh Concepts, The Macalester Review: A Political Magazine, The Hegemonocle Humor Magazine, The Trads and other a cappella groups, Cheeba, MacBrews, MacBike, the Macalester Outing Club, the Macalester Climbing Club, Minnesota Public Interest Research Group ( MPIRG ), Macalester Conservation and Renewable Energy Society ( MacCARES ), Macalester International Organization ( MIO ), MacPlayers, NARAL Pro-Choice Macalester, Queer Union, Macalester for Justice in Palestine, Macalester Young Artists for Revolutionary Needlework ( MacYARN ), Mac Rugby, and Medicinal Melodies.

The German Renewable Energy Act, legislations of many other member states of the European Union and the American Recovery and Reinvestment Act of 2009, all provide such market incentives.

In 2009, scientists at the National Renewable Energy Laboratory ( NREL ) and SkyFuel teamed to develop large curved sheets of metal that have the potential to be 30 % less expensive than today's best collectors of concentrated solar power by replacing glass-based models with a silver polymer sheet that has the same performance as the heavy glass mirrors, but at a much lower cost and much lower weight.

Renewable energy generators located in states that do not have a Renewable Portfolio Standard can sell their RECs to voluntary buyers, usually at a cheaper price than compliance market RECs.

A team of renewable energy developers working for the Pacific Islands Applied Geoscience Commission ( SOPAC ) and funded by the Renewable Energy and Energy Efficiency Partnership ( REEEP ), have hatched a scheme that enables these communities to access renewable energy, such as solar, without raising substantial sums of ready cash.

Renewable resources such as the movement of water ( hydropower, tidal power and wave power ), wind and radiant energy from geothermal heat ( used for geothermal power ) and solar energy ( used for solar power ) are practically infinite and cannot be depleted, unlike their non-renewable counterparts, which are likely to run out if not used sparingly.

Also, appropriately, the National Renewable Energy Laboratory, which does research on solar energy, is located in Golden, Colorado.

* Variable Renewable Energy-wind and solar, primarily

* Renewable energy with biomass pellet stoves, wood-burning stoves, solar panels, wind turbines, programmable thermostats, and geothermal exchange heat pumps ( see autonomous building )

* Renewable energy ( solar, wind, geothermal, marine including wave, biogas, and fuel cell )

Wild Horse also includes the region ’ s largest utility-owned solar array, a 500-kilowatt demonstration project ( 0. 01 % of total PSE generating capacity ), and the Renewable Energy Center, which is open to visitors from April through November.

Concerning environmental protection, it promotes, among others, photovoltaic energy ( solar cells ) which has in turn received massive indirect subsidies through feed-in tariffs under the Renewable Energy Law of 2000.

* Renewable Energy: Increased biomass / waste and wind energy and provide large, annual subsidies for solar and wave energy.

The lab also makes available a number of different solar resource data sets in its Renewable Resource Data Center.

Scientists at the U. S. Department of Energy's National Renewable Energy Laboratory ( NREL ) have set a world record in solar cell efficiency with a photovoltaic device that converts 40. 8 percent of the light that hits it into electricity.

* Renewable Energy-Analysis and testing for biofuels, solar, and wind energy

Renewable energy offsets commonly include wind power, solar power, hydroelectric power and biofuel.

Reported timeline of solar cell energy conversion efficiencies ( from National Renewable Energy Laboratory ( USA ))

National Renewable Energy Laboratory tests and validates solar technologies.

Renewable power generators are spread across many countries, and wind power alone already provides a significant share of electricity in some areas: for example, 14 % in the U. S. state of Iowa, 40 % in the northern German state of Schleswig-Holstein, and 20 % in Denmark.

In June 1999, as chair of Toronto's environmental task force, the Toronto Atmospheric Fund, he was instrumental in the preliminary phases of the WindShare wind power cooperative in Toronto through the Toronto Renewable Energy Co-operative.

In Drax Group began planning development of two 300MW biomass fueled plants-one power station plant was to be situated near at the Drax site, the Ouse Renewable Energy Plant Government approval was obtained in mid 2011.

* Ocean Renewable Power Corporation was the first company to deliver tidal power to the US grid in September, 2012 when its pilot TidGen system was successfully deployed in Cobscook Bay, near Eastport.

In 2010, Brookfield Renewable Enegy Partners was launched as an exchange-listed global renewable power company, with a portfolio of hydroelectric and wind power plants in Canada, the United States and Brazil.

Oregon Tech is the only completely geothermally-heated university campus in the United States, and is home to the Geo-Heat Center, a national resource for geothermal development, and the Oregon Renewable Energy Center ( OREC ), which conducts applied research on photovoltaic power systems, ground-source heating systems, fuel-cell systems, wind, biomass, biodiesel and integrated systems.

* Renewable Energy Sources, ways to produce power that deplete extremely slowly ( such as sunlight )

This Institute will help Saudi Arabia to develop the nuclear power along with King Abdullah City for Atomic and Renewable Energy < sup >( ar )</ sup >.

Renewable electricity generation methods, for example wind power and hydropower, emit no carbon from the operation, but do leave a footprint during construction phase and maintenance during operation.

Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, waves and geothermal heat, which are renewable ( naturally replenished ).

Renewable energy flows involve natural phenomena such as sunlight, wind, tides, plant growth, and geothermal heat, as the International Energy Agency explains:

The Ovaltine Egg Farm is now the site of Renewable Energy Systems Ltd. and the site of the first wind turbine visible from the M25.

Edmonds is a trustee of the Renewable Energy Foundation, ( REF ) an organisation which is strongly opposed to wind farms.

Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable ( naturally replenished ).

WindShare and its parent, the Toronto Renewable Energy Cooperative ( TREC ), have plans for more wind turbines.

Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable ( naturally replenished ).

Although the Massachusetts Institute of Technology and the National Renewable Energy Laboratory explored the concept of TLPs for offshore wind turbines in September 2006, architects had studied the idea as early as 2003.

Some of the island landowners see the wind farm project as a positive step forward for Amherst Island and have formed Citizens of Amherst Island for Renewable Energy ( CAIRE ).

In 1996, the National Renewable Energy Laboratory ( NREL ) conducted a wind resource analysis and mapping study.