Geothermal - News, Trends, Geothermal Links
Geothermal in US
Acc to the US Dept of Energy, the geothermal resources in US alone are estimated to exceed 70,000,000 quads. That is enough to supply power for human consumption for hundreds of thousands of years
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Hydropower and geothermal employment
# employed in hydropower - 40 K and in geothermal - 25 K worldwide data (2006?)
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Geothermal heat pump costs about 2500 per T of capacity
Geothermal heat pump systems normally cost about $2,500 per ton of capacity. The typically sized home would use a three-ton unit costing roughly $7,500. The initial cost is nearly twice the price of a regular heat pump system (est. $4,000 with air conditioning), but annual heating bill can be reduced by up to 40% with an effective heat pump system. - Read More
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Geothermal components
The following are the components in a geothermal heat pump - ductwork, heat exchanger, fan and buried closed loop containing water or anti-freeze - Read More
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How much does power from a geothermal power plant cost?
Recent California Energy Commission (CEC) estimates place the levelized generation costs from new plants at 4.5-7.3 c per kwh for geothermal, which over the lifetime of the plant can be competitive with a variety of technologies, including natural gas. At current fossil fuel market prices, natural gas costs the equivalent of 8 to 9 cents per kilowatt hour. However, most developers contend that the cost for new projects is accurately reflected in a range of 5.5 and 7.5 c per kwh - 2000 data
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Factors that can affect geothermal's cost
Power plant technology:Various technological parameters can affect power plant cost. These include the power conversion and cooling system type. Knowledge of the resource: Drilling costs associated with the development of a new project in a well-known field can be 37 percent lower than drilling costs of a similar project located in an "unknown" geothermal field.
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Topics : Geothermal Energy
Geothermal power plants can take 3-5 years to build
Unlike many other renewable technologies, geothermal plants can take 3 to 5 years to build, even after all permits are in place. This long lead time prevents many new companies from benefiting from the PTC unless it is extended after the first two years. However, some companies are reluctant to take this risk when an extension is not guaranteed. 2000 data
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Capital costs account for over 655 of geothermal power plant cost
In 2001, EPRI(16) estimated that capital reimbursement and associated interest account for 65% of the total cost of geothermal power. Capital costs of a combined cycle natural gas power plant, in contrast, only represents about 22% of the levelized cost of electricity produced from the plant, while the fossil fuel cost accounts for 67%.(17) - Read More
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Geothermal - 100 million quads available, just 400 quads required
Geothermal - According to M.I.T., there are over 100 million quads of accessible geothermal energy worldwide. The world only consumes about 400 quads. Is this true? Sounds way too good to be true
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Raser specializes in low-boil geothermal
Raser, which specializes in low-boil geothermal sites, started buying leases five years ago on hundreds of thousands of acres that had been passed over because of their lower heat potential. New technology, however, has made low-boil water useable for geothermal power. Raser buys 250-kilowatt power units from UTC Power, a subsidiary of United Technologies Corp. - Read More
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Topics : Geothermal Energy