News tagged with renewable energy

Study claims 100 percent renewable energy possible by 2030

(PhysOrg.com) -- New research has shown that it is possible and affordable for the world to achieve 100 percent renewable energy by 2030, if there is the political will to strive for this goal.

Technology / Energy & Green Tech

created Jan 19, 2011 | popularity 4.1 / 5 (60) | comments 101 | with audio podcast report

Thermosolar power station in Spain works at night

A unique thermosolar power station in southern Spain can shrug off cloudy days: energy stored when the sun shines lets it produce electricity even during the night.

Technology / Energy & Green Tech

created Mar 18, 2012 | popularity 4.5 / 5 (37) | comments 243

Affordable solar: It's closer than you think

It's time to stop thinking of solar energy as a boutique source of power, says Joshua Pearce.

Technology / Energy & Green Tech

created Dec 01, 2011 | popularity 4.2 / 5 (31) | comments 59 | with audio podcast

Innovative superconductor fibers carry 40 times more electricity

Wiring systems powered by highly-efficient superconductors have long been a dream of science, but researchers have faced such practical challenges such as finding pliable and cost-effective materials. Now ...

Physics / Superconductivity

created Sep 07, 2011 | popularity 4.6 / 5 (23) | comments 23 | with audio podcast

Japan nano-tech team creates palladium-like alloy: report

Japanese researchers have created an alloy with properties similar to palladium, a precious metal used in many high-tech goods, a news report said Thursday, dubbing the breakthrough "present-day alchemy".

Nanotechnology / Nanomaterials

created Dec 30, 2010 | popularity 4.8 / 5 (19) | comments 14

Splitting water to create renewable energy simpler than first thought?

(PhysOrg.com) -- An international team, of scientists, led by a team at Monash University has found the key to the hydrogen economy could come from a very simple mineral, commonly seen as a black stain on ...

Chemistry / Materials Science

created May 16, 2011 | popularity 4.7 / 5 (19) | comments 13 | with audio podcast

China closes factories as green deadline looms

China, facing the risk of embarrassment if it misses a looming environmental deadline, has ordered thousands of companies to close high-polluting plants as its leadership vies to retool economic growth.

Space & Earth / Environment

created Aug 22, 2010 | popularity 4.5 / 5 (19) | comments 11

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 (17) | comments 12 | with audio podcast report

Scotland passes turbine test to harness tidal power

(Phys.org) -- An underwater turbine being used for harnessing tidal power to generate electricity for homes and businesses has successfully completed its testing period in the island of Eday, one of Orkney’s ...

Technology / Energy & Green Tech

created May 20, 2012 | popularity 4.6 / 5 (18) | comments 41 | with audio podcast report

Novel alloy could produce hydrogen fuel from sunlight

Scientists from the University of Kentucky and the University of Louisville have determined that an inexpensive semiconductor material can be "tweaked" to generate hydrogen from water using sunlight.

Chemistry / Materials Science

created Aug 30, 2011 | popularity 4.9 / 5 (15) | comments 16 | with audio podcast

Japan 'plans solar panels for all new buildings'

Japan is considering a plan that would make it compulsory for all new buildings and houses to come fitted with solar panels by 2030, a business daily said Sunday.

Technology / Energy & Green Tech

created May 22, 2011 | popularity 5 / 5 (14) | comments 12

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 3.6 / 5 (19) | comments 27

Germany set to abandon nuclear power for good

(AP) -- Germany is determined to show the world how abandoning nuclear energy can be done.

Technology / Energy & Green Tech

created Mar 23, 2011 | popularity 3.6 / 5 (18) | comments 154

Researcher's waste-to-energy technology moves from the lab to the marketplace

(Phys.org) -- Technology invented by a University of California, Davis, researcher that converts solid waste into renewable energy is debuting today as the first commercially available, high-solid anaerobic ...

Technology / Energy & Green Tech

created Apr 20, 2012 | popularity 4.9 / 5 (13) | comments 12 | with audio podcast

Researchers pioneer molecular catalyser

Scientists in Sweden have developed a molecular catalyser with the ability to quickly oxidise water to oxygen. Presented in the journal Nature Chemistry, the results are a significant contribution to the future ...

Chemistry / Materials Science

created Apr 16, 2012 | popularity 5 / 5 (12) | comments 10 | with audio podcast

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.