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10 Things to Know about Power Plant Water Use, 10 Reasons to Care

Some things get better with age. Not power plants. The nation’s older power plants that still rely on antiquated and damaging once-through cooling systems have a huge thirst for water. These plants are capable of withdrawing approximately 100 trillion gallons each year directly from rivers, lakes, estuaries and oceans; profiting from a free public resource. […]

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Backyard Wind Turbines Cut Home Electricity Bills

Solar panels aren’t the only option for homeowners when it comes to using renewable energy to cut power bills. Sales of wind turbines for backyards and rooftops are growing strong. There’s been major growth in the last ten years with more than 10,000 wind turbine units sold in 2009 compared to 2,100 units in 2001. […]

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Wind, Water & Sun can Power Our 240 Million Cars & Everything Else

Our Promising Future of Renewable Energy The cleanest solutions to global warming, air pollution and energy security are wind, water, and solar power (WWS).  As Dr. Mark Jacobson walks me through the numbers of his, Dr. Mark Delucchi, and their teams’ multi-year study, the renewable energy solution stands out as the clear winner. Dr. Jacobson […]

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The importance of recycling rare earth metals and minerals

“Rare earth” doesn’t mean a patch of soil that’s endangered as such. It refers to a series of metallic elements that while plentiful, are difficult to find in commercially viable quantities. The elements include: Scandium Yttrium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Compounds of these elements […]

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Build Your Own Vertical-Axis Wind Turbine On The Cheap

The Zoetrope is a vertical-axis wind turbine (VAWT) made from materials commonly found at your local hardware store and a few easily purchased online, and Applied Sciences has made the decision to “open source” the turbine for everyone who wants to try their hand at making one. With videos and a downloadable PDF construction guide, […]

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3 Ways to Generate Free Electricity at Home

Unless all your bills are paid for, you probably have experienced the effects of ever-inflating taxes, gas prices, and electricity costs. While I cannot help you reduce your taxes or cost of gas, I can provide you with three methods for generating your own free electricity here in San Diego. These will require some finesse, […]

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2010 review of green technologies

From electric cars to solar-powered planes and giant turbines, 2010 has seen huge progress in green technology development… In September, the UK opened the world’s biggest offshore wind farm at Thanet, off the coast of Kent. The eight lines of turbines, running north-west to south-east, cover a total area of 35sq km off Foreness Point […]

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How to Build a Basic Wind Turbine

Making the decision to build your own wind turbine is certainly a noble one. Perhaps you want to save money on your electricity bills or want to reduce your carbon footprint. Whatever your reasons, learning how to build a basic wind turbine is often not as difficult as many people imagine. It is certainly not […]

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Coastal winds power a remote region

Video: A Nigerian seeks to solve Mozambique’s energy problems with sun, wind and car parts. Source: GlobalPost Renewable energy such as wind and solar are low-impact, clean technologies.  The initial cost of wind and solar energy installations is quite high but the savings in electricity bills usually result in a relatively quick pay-off (in South […]

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