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The Geysers in northern California is planning a $700 million expansion, to add 98 new MW of geothermal power. The Geysers is [already] the single largest geothermal operation in the world, producing up to 725 megawatts of green energy around the clock — enough electricity to power the entire city of San Francisco. [...] At night, geothermal production meets 50% of Reno’s needs. Geothermal is reliable and steady, producing power 24/7. Pumps pull 6,000 gallons of water a minute out of reservoirs 3,000 feet below the surface. The water, naturally heated by geologic forces to approximately 300 degrees Fahrenheit (150 C), boils a chemical refrigerant contained in sealed [...] If asked what type of renewable energy is most prevalent in California, most would choose solar or wind, but in reality, those two forms of renewable energy aren’t even close. Instead, the current California champion for renewable energy is geothermal, followed by small hydro. Say what? As an example, on Wednesday May 4, 2011, [...] Several geothermal plants on the southeastern shore of the California’s inland and saline Salton Sea have reliably been producing power for 30 years. A new 50 MW plant should be online by next February. A quake that caused cracks in buildings in August 2009 and six more perceptible temblors the next month probably came from an increase in hot-water pressure in the pores of the rock after water was forced down a bore to keep the supply of hot water going. Geothermal can produce power on a [...] CalEnergy Vice President Mark Gran introduces the company’s 340 megawatt geothermal plant on the southern shore of the Salton Sea. The plant produces enough energy to power around 300,000 homes. The Imperial Valley has the potential to produce a stunning 2300 megawatts of this renewable resource. Thats enough energy to power more than 2 [...] Every barrel of oil extracted in the US also produces ten barrels of hot fluids in addition to the oil. Why not use that potential energy in the waste heat? The Department of Energy plans a demo to show oil companies how to capture waste heat from drilling fluids and create electricity on-site, thus [...] Wind turbines on Maui, Dec. 2006. Wind, solar, hydro, biogas from waste, and their as-yet-untapped geothermal resources are the reasons why. But the group’s top recommendation was to look for more ways to conserve energy. “A megawatt saved is always going to be cheaper than a megawatt installed,” he said. Absolutely. [...] Oil drilling rigs could use this to create energy from hot water they now discard. This quite amazing new technology is from an inventor in Alaska teaming up with heavyweight United Technologies. Raser Technologies has devised a way to create geothermal energy from water only as hot as a cup of coffee. This is much cheaper than other geothermal techniques and can be done in more places too. Plus, unlike solar or wind, geothermal produces power 24/7. [...] |  | ||||
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