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    Efficient Wind Power Designs Advance Clean Tech Cause

    So far, the story of the US renewable energy transformation has skipped a key chapter, which is the exploitation of our massive offshore wind power potential. In the offshore wind category, the US has been lagging far behind other nations. However, the spotlight is starting to swing out to embrace this wind power option, and […] More

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    After Record 2012, World Wind Power Set to Top 300,000 Megawatts in 2013

    Even amid policy uncertainty in major wind power markets, wind developers still managed to set a new record for installations in 2012, with 44,000 megawatts of new wind capacity worldwide. With total capacity exceeding 280,000 megawatts, wind farms generate carbon-free electricity in more than 80 countries, 24 of which have at least 1,000 megawatts. At the European level of consumption, the world’s operating wind turbines could satisfy the residential electricity needs of 450 million people. More

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    We Don't Need No Solar Panels; We've Got Hyper Kids!

    Harvesting kinetic energy produced by people walking and moving seems like a no-brainer, and the stories we’ve seen so far focus on spaces ranging from dance floors to health clubs. But if you’ve ever been to an elementary or middle school, you know that they may well be the perfect location for such experiments – there’s a lot of energy in those hallways! More

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    The Great Transition, Part I: From Fossil Fuels to Renewable Energy

    The great energy transition from fossil fuels to renewable sources of energy is under way. As fossil fuel prices rise, as oil insecurity deepens, and as concerns about pollution and climate instability cast a shadow over the future of coal, a new world energy economy is emerging. The old energy economy, fueled by oil, coal, and natural gas, is being replaced with an economy powered by wind, solar, and geothermal energy. More

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    Offshore Wind Energy Development Picking Up Pace

    Wind power is the world’s leading source of renewable electricity, excluding hydropower, with 238,000 megawatts of capacity installed at the start of 2012. Thus far, almost all of this wind power has been tapped on land; worldwide just 4,600 megawatts of offshore wind farms were operating as of mid-2012. Offshore wind capacity is growing quickly, however, expanding nearly six-fold since 2006. Twelve countries now have wind turbines spinning offshore, and more will be joining them to take advantage of the powerful winds blowing over the oceans. More

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    Global Wind Power Climbs to New Record in 2011

    Wind energy developers installed a record 41,000 megawatts of electricity-generating capacity in 2011, bringing the world total to 238,000 megawatts. With more than 80 countries now harnessing the wind, there is enough installed wind power capacity worldwide to meet the residential electricity needs of 380 million people at the European level of consumption. More

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    Harnessing the Sun's Energy for Water and Space Heating

    The pace of solar energy development is accelerating as the installation of rooftop solar water heaters takes off. Unlike solar photovoltaic (PV) panels that convert solar radiation into electricity, these “solar thermal collectors” use the sun’s energy to heat water, space, or both. More

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    UK Financial Incentives Make Now the Time to Go Solar

    The incentives to go solar at home are better than ever. Government guarantee schemes and increasing electricity bills, combined with dwindling fossil fuel resources and the dire need for solutions to climate change make solar panels a compelling solution for the eco and budget conscious homeowner. So what is solar power anyway? Solar power uses […] More

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    Hawaii: an Epicenter for Renewable Energy

    Hawaiian culture is steeped in a delicate harmony with nature. The islands boast consistently strong wind densities, great insolation characteristics, enormous reservoirs of geothermal energy, plant life that is perfect for the production of ethanol, and an incredible oceanic wave resource, all of which could be exploited by renewable technologies without damaging the environment. As […] More

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    T-shirts Made from Piezoelectric Material to Rock Glastonbury Festival

    The UK’s Glastonbury Festival isn’t just one of the biggest music events in world… it’s also become a launch pad for innovative consumer renewable energy technology. Last year, mobile communications company Orange tested out its Power Wellies (which harvested foot heat for charging phones, etc.)… I gave them some love over at SUNfiltered. This year, […] More

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    Geothermal Power Heating Up Worldwide

    By J. Matthew Roney In 1904, Italy’s Prince Piero Ginori Conti became the first person to use thermal energy from within the earth to turn on the lights — five of them, to be precise. Now, more than a century after his experiment, 24 countries are using geothermal power. The 10,900 megawatts of capacity installed […] More

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    Richmond Mom Gets a Free Solar Power System

    For Tiffany Woodwards and her two little girls (above), a solar system means more than eco-friendly power from the sun. It’s an incredible help paying for utility bills. The Richmond, California family’s energy costs ranged from $150 to $180 per month, but thanks to the new 18-panel home solar array installed last month on the […] More

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    Wind: The Centerpiece of the Plan B Economy

    By Lester R. Brown For many years, a small handful of countries dominated growth in wind power, but this is changing as the industry goes global, with more than 70 countries now developing wind resources. Between 2000 and 2010, world wind electric generating capacity increased at a frenetic pace from 17,000 megawatts to nearly 200,000 […] More

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    Student to Travel the World Studying Commercial Solar Power

    A student with a passion for seeing solar energy developed globally, Arizona State University’s Steven Limpert now has the funds to continue his studies in a big way. The third-year ASU student is the latest recipient of the Circumnavigators Club Foundation grant—one that he will use to study the development and commercialization of solar energy […] More

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    Ten Commandments for Reducing Your Carbon Footprint

    When it comes to chiseling our emissions profile down to a more respectable and streamlined shape, we are all aware of the usual suspects. You know — those tweakings of lifestyle that are regularly wheeled out, just to add a splash of greenwash to a magazine article. Such actions often don’t seem capable of shifting […] More

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    Green Technology Leads to More Jobs

    The global demand for batteries is expected to grow exponentially over the next 20 years. We cannot make the conversion to clean energy without first acknowledging the need for energy storage and transfer (better batteries and a smarter grid). Despite the important role these parts play in green energy, the economic impact of this domestic […] More

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    Good News: US Solar Power to Double in 2010

    Editor’s note: Not sure why this post got pulled back into the pending queue yesterday… apologies if you clicked through and got an error page. In light of mid-October’s Solar Power International Conference, there is some great news about the industry.  The Solar Energy Industry Association  (SEIA) is reporting that solar power in the US […] More

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    Geothermal: Getting Energy from the Earth

    By Lester R. Brown The heat in the upper six miles of the earth’s crust contains 50,000 times as much energy as found in all the world’s oil and gas reserves combined. Despite this abundance, only 10,700 megawatts of geothermal electricity generating capacity have been harnessed worldwide. Partly because of the dominance of the oil, […] More

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    A Global Shift to Renewable Energy

    By Lester R. Brown As fossil fuel prices rise, as oil insecurity deepens, and as concerns about climate change cast a shadow over the future of coal, a new energy economy is emerging. The old energy economy, fueled by oil, coal, and natural gas, is being replaced by one powered by wind, solar, and geothermal […] More

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    Give Your Truck a Caffeine Jolt: Spent Coffee Grounds as a Biodiesel

    The world produces an insane amount of coffee each year, somewhere around 16 billion pounds.  The grounds are soaked in water, that’s the end of their life.  They are not really consumed, only used for a small fraction of their delightful oils and stimulating phytochemicals (read: caffeine).  If the grounds are lucky, maybe they end […] More

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    PG&E, Prop 16, and Truth in Advertising

    “But I swear it was in self defense” Bob Marley exclaims in “I Shot The Sheriff”: “Sheriff John Brown… says kill the seeds before they grow.” With Prop 16, PG&E is trying to kill the seeds of a clean energy future before they have a chance to grow. The oil spill in the Gulf of Mexico […] More

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    Offshore Wind, Not Offshore Oil

    By Janet Larsen The enormously devastating oil spill in the Gulf of Mexico is just one reminder that stretching out an addiction to a polluting and planet-warming fossil fuel poses risks to our health, our environment, and our economy. U.S. oil production peaked in 1970 at 9.6 million barrels per day. Since then production has […] More

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