News tagged with renewable energy

Grass to gas: Researchers' genome map speeds biofuel development

Researchers at the University of Georgia have taken a major step in the ongoing effort to find sources of cleaner, renewable energy by mapping the genomes of two originator cells of Miscanthus x giganteus, a large perenn ...

Biology / Biotechnology

created 10 hours ago | popularity 3.8 / 5 (5) | comments 0 | with audio podcast

New integrated building model may improve fish farming operations

Today's "locavore" movement with its emphasis on eating more locally-produced food is a natural fit for fruits and vegetables in nearly every region, but few entrepreneurs have dared to apply the concept to ...

Technology / Engineering

created Feb 09, 2012 | popularity not rated yet | comments 0

Screening Africa's renewable energies potential

The European Commission's Joint Research Centre (JRC) has published today a study mapping the potential of renewable energy sources in Africa. The report analyses the current energy consumption in Africa and ...

Technology / Energy & Green Tech

created Feb 08, 2012 | popularity not rated yet | comments 1

Solar start-ups set new efficiency records

(PhysOrg.com) -- Although Alta Devices and Semprius make different types of solar panels, both start-ups have been breaking records in the past few days. Santa Clara, Calif.-based Alta Devices announced that ...

Technology / Energy & Green Tech

created Feb 08, 2012 | popularity 4.9 / 5 (15) | comments 12 | with audio podcast report

California hits wind energy milestone: About 5 percent of power from wind

California now gets about 5 percent of its electricity from wind power, according to data released Tuesday by the California Wind Energy Association.

Technology / Energy & Green Tech

created Feb 07, 2012 | popularity 5 / 5 (4) | comments 33

Clouds gather over Spain's renewables sector as aid cut

Spain's push to become a world leader in renewable energy risks collapsing after the government slammed the brakes on generous subsidies as part of an austerity drive.

Technology / Energy & Green Tech

created Feb 02, 2012 | popularity not rated yet | comments 0

Leaked documents indicate EU looking to reclassify carbon emissions from biofuels

(PhysOrg.com) -- In order to wean themselves from their dependence on oil derived from fossil fuels, many countries, consortiums, and other groups have put incentives in place for the growing of plants that ...

Technology / Energy & Green Tech

created Jan 30, 2012 | popularity 4.8 / 5 (5) | comments 6 | with audio podcast weblog

Hydrogen peroxide goes green in undergrad's published paper on renewable energy

Most of us know hydrogen peroxide as a way to bleach hair, but MacKenzie Mayo is using it to help turn yard waste into renewable energy.

Chemistry / Other

created Jan 20, 2012 | popularity 4.3 / 5 (3) | comments 0

High-tech companies take on urban design with smart cities

Hitachi Ltd., Toshiba Corp. and other major Japanese electronics makers are increasingly turning their sights toward "smart city" projects designed to create eco-friendly, energy-efficient communities.

Technology / Energy & Green Tech

created Jan 18, 2012 | popularity not rated yet | comments 0

Tough economy curbs clean energy investment: experts

A global economic slowdown and the eurozone debt crisis have curbed government investment in renewable energy, experts warned Tuesday.

Technology / Energy & Green Tech

created Jan 17, 2012 | popularity 5 / 5 (1) | comments 3

UN chief launches sustainable energy initiative

UN Secretary General Ban Ki-moon launched on Monday an initiative designating 2012 as the International Year of Sustainable Energy for All, with the aim of reaching its set goals by 2030.

Technology / Energy & Green Tech

created Jan 16, 2012 | popularity not rated yet | comments 2

Project to pour water into volcano to make power

(AP) -- Geothermal energy developers plan to pump 24 million gallons of water into the side of a dormant volcano in Central Oregon this summer to demonstrate new technology they hope will give a boost to a ...

Technology / Energy & Green Tech

created Jan 14, 2012 | popularity 3.5 / 5 (18) | comments 27

NREL helping Virgin Islands cut fuel use

The U.S. Virgin Islands are a great place to visit, but you wouldn't want to pay energy bills there.

Technology / Energy & Green Tech

created Jan 12, 2012 | popularity not rated yet | comments 0

German jobs boom in renewable energy questioned

Optimistic predictions that Germany's decision to turn its back on nuclear energy will lead to the creation of hundreds of thousands of jobs in the renewable energy sector have met with scepticism.

Technology / Energy & Green Tech

created Jan 08, 2012 | popularity 5 / 5 (3) | comments 12

Future is bright for ONR's lightweight, sun-powered generator

The Department of the Navy continues its move toward renewable energy with an Office of Naval Research (ONR)-funded solar generator that recently entered full production, with several systems already in the ...

Technology / Energy & Green Tech

created Dec 21, 2011 | popularity 5 / 5 (3) | comments 0

Renewable energy

Renewable energy is energy generated from natural resources—such as sunlight, wind, rain, tides, and geothermal heat—which are renewable (naturally replenished). In 2006, about 18% of global final energy consumption came from renewables, with 13% coming from traditional biomass, such as wood-burning. Hydroelectricity was the next largest renewable source, providing 3% of global energy consumption and 15% of global electricity generation.

Wind power is growing at the rate of 30 percent annually, with a worldwide installed capacity of 121,000 megawatts (MW) in 2008, and is widely used in European countries and the United States. The annual manufacturing output of the photovoltaics industry reached 6,900 MW in 2008, and photovoltaic (PV) power stations are popular in Germany and Spain. Solar thermal power stations operate in the USA and Spain, and the largest of these is the 354 MW SEGS power plant in the Mojave Desert. The world's largest geothermal power installation is The Geysers in California, with a rated capacity of 750 MW. Brazil has one of the largest renewable energy programs in the world, involving production of ethanol fuel from sugar cane, and ethanol now provides 18 percent of the country's automotive fuel. Ethanol fuel is also widely available in the USA. While most renewable energy projects and production is large-scale, renewable technologies are also suited to small off-grid applications, sometimes in rural and remote areas, where energy is often crucial in human development. Kenya has the world's highest household solar ownership rate with roughly 30,000 small (20–100 watt) solar power systems sold per year.

Some renewable energy technologies are criticised for being intermittent or unsightly, yet the renewable energy market continues to grow. Climate change concerns coupled with high oil prices, peak oil and increasing government support are driving increasing renewable energy legislation, incentives and commercialization. New government spending, regulation, and policies should help the industry weather the 2009 economic crisis better than many other sectors.

For more information about Renewable energy, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.