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Plans for solar thermal, PV, Wind, Heating, Cooling, Cooking, and energy saving projects for Do It Yourselfers Search The Renewable Energy site for Do-It-Yourselfers More than 500 renewable energy and conservation projects you can build. Distributed generation Distributed generation, also called on-site generation, dispersed generation, embedded generation, decentralized generation, decentralized energy, distributed energy or district energy,[1] generates electricity from many small energy sources. Most countries generate electricity in large centralized facilities, such as fossil fuel (coal, gas powered), nuclear, large solar power plants or hydropower plants. These plants have excellent economies of scale, but usually transmit electricity long distances and can negatively affect the environment. Distributed generation allows collection of energy from many sources and may give lower environmental impacts and improved security of supply. Local wind generator, Spain, 2010
Offshore wind power Offshore wind power or offshore wind energy is the use of wind farms constructed offshore, usually on the continental shelf, to harvest wind energy to generate electricity. Stronger wind speeds are available offshore compared to on land, so offshore wind power’s contribution in terms of electricity supplied is higher,[1] and NIMBY opposition to construction is usually much weaker. However, offshore wind farms are relatively expensive.[2] At the end of 2014, 3,230 turbines at 84 offshore wind farms across 11 European countries had been installed and grid-connected, making a total capacity of 11,027 MW.[3] As of 2013 the 630 megawatt (MW) London Array is the largest offshore wind farm in the world, with the 504 (MW) Greater Gabbard wind farm the second largest, followed by the 367 MW Walney Wind Farm. All are off the coast of the UK.
Tesla Technology: 5 Bladeless Turbines About To Revolutionize Energy Production Tesla Technology: 5 Bladeless Turbines About To Revolutionize Energy Production www.endalldisease.com “Every home in America can run on wind energy. In fact these units can be installed on existing power poles in rural areas, to catch the wind and send its energy back to the plant.” - Raymond Green, Inventor How I built an electricity producing Solar Panel Several years ago I bought some remote property in Arizona. I am an astronomer and wanted a place to practice my hobby far away from the sky-wrecking light pollution found near cities of any real size. In my attempt to escape city light pollution, I found a great piece of remote property. The problem is, it's so remote that there is no electric service available.
Renewable Energy Certificates (United States) Renewable Energy Certificates (RECs), also known as Green tags, Renewable Energy Credits, Renewable Electricity Certificates, or Tradable Renewable Certificates (TRCs), are tradable, non-tangible energy commodities in the United States that represent proof that 1 megawatt-hour (MWh) of electricity was generated from an eligible renewable energy resource (renewable electricity). Solar renewable energy certificates (SRECs) are RECs that are specifically generated by solar energy. These certificates can be sold and traded or bartered, and the owner of the REC can claim to have purchased renewable energy.
Possible Dual Rotor Technology for Wind Turbines Iowa State Aerospace Engineers Anupam Sharma and Hui Hu are exploring the possibility of adding a smaller, secondary rotor to wind turbines. The engineers studied the base of existing turbines and found two major problems. First, they are big round structural pieces that don’t harvest any wind energy because they are not shaped like an airfoil. Tesla doubles the power output of the Powerwall without changing the price Tesla Motors held its 2015 Annual Shareholders Meeting today at the Computer History Museum in Mountain View. During his presentation, Elon Musk, Tesla’s CEO, announced that Tesla will be doubling the power output of the Powerwall, Tesla’s residential energy storage system, to 7KW at peak usage and 5KW for steady usage. Musk confirmed that the price will remain the same, $3,000 for the 7KWh daily cycle version and $3,500 for the 10KWh weekly cycle version. Tesla offers 2 different versions of the Powerwall battery system. The 7KWh pack is built to be discharged daily in order to take advantage of a solar power installation or to manage usage, especially if you are paying your electric utility by time-of-use. It could also be combined with multiple packs in order to take a solar installation completely off-grid.
BLUE Ready to Rock - a "condensed" version shown for the photo, with a 3/4 hp generator, held by the inventor, Doug Selsam. Here are the blades of a 20 inch diameter turbine, that produces about half a kilowatt. They will be mounted on a shaft that projects for a long distance forward, and backward, at an angle from horizontal, so that the wind encounters the rotors like a stairway. Each additional rotor brings more power. The combined output from all these small rotors really adds up. Can We Go Green? Check Your Condo Documents Before Launching Green Initiatives By Matthew Worley Article Options As gasoline prices rise with increasing summer demand, American thoughts focus sharply on the cost of energy and ways to trim fat from their overall energy budgets. Yet for the nation’s nearly sixty million condo dwellers, considering newer energy-saving options can be a tricky proposition at best.
Invelox wind turbine claims 600% advantage in energy output SheerWind, a wind power company from Minnesota, USA, has announced the results of tests it has carried out with its new Invelox wind power generation technology. The company says that during tests its turbine could generate six times more energy than the amount produced by traditional turbines mounted on towers. Besides, the costs of producing wind energy with Invelox are lower, delivering electricity with prices that can compete with natural gas and hydropower. Invelox takes a novel approach to wind power generation as it doesn’t rely on high wind speeds.