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pre-geo There are two possible
sources for it: the radioactive decay of natural radio nuclides which causes the
spread of heat onto the earth's surface, and the storage of solar energy in the
top layers of the earth. For this reason, geothermal energy is available in many places and independent of the different seasons of the year. The installation in the town of Prenzlau -- which was built when this was still the German Democratic Republic, and was re-activated in 1995 -- was the first one in the world to extract heat from the Earth's interior by means of a 2.9 km deep drilling hole, without mass transfer. On 10 Nov. 1994, the new Prenzlau Geothermal Heating Plant [Geothermische Heizzentrale Prenzlau = GHZ] went into operation. pr.telephone Flat fact sheet January 20 In November 2002, Calpine received notification from the U.S. Departments of Agriculture and Interior that the Telephone Flat project would be allowed to proceed under specific mitigation measures designed to address the needs of the area's multiple uses. The Telephone Flat project will create the electrical power equivalent of almost 50,000 homes by harnessing steam from within the earth and using it to drive a turbine generator. California's economy and population growth continue to strain the State's energy resources, as is evidenced by the power emergencies declared last summer. New power projects are needed to bridge the gap and provide for our current and future power needs. feb18p6 by Judy Farrell Editor's Note: This is the first in a two-part series on the Federal government's renewable energy initiatives.This article focuses on the initiatives themselves. The second article, will focus on ways Western is helping to promote renewable resources to meet our goals. wind and sun may produce electricity for our computers and lights. It may be used to heat a building or water, or captured to generate electricity. Batteries allow solar energy to be stored for use at night or on cloudy days. Biomass energy is generated from plants or other organic material. The U.S. Department of Energy is working with partners in the building industry, other Federal agencies, the solar energy industry, financial institutions, state and local governments and nongovernmental organizations to remove market barriers to solar energy use and to develop and strengthen demand for solar energy products and applications. Ghomshei> energy, heat, fuzzy, resource, temperature, market, Vancouver, heat pump, medium grade, fuzzy parameters, solar. Rising fossil fuel prices have lead to increasing interest in alternative energy options such as solar, wind, wave, geothermal and hydrogen fuel to mention a few. While fossil fuel supplies are controlled by a volatile international market, most alternative options are locally derived and so, they are more stable. Three sets of fuzzy variables can be defined to evaluate the three fuzzy components: 1- the resource, 2- the conversion, and 3- the economy and market. Geothermal energy is the heat energy of the ground and the groundwater. While air temperature manifests strong diurnal and seasonal variations, the ground has a relatively constant temperature for all seasons. 780118> energy, solar, technology, ERDA, electricity, resource, emphasis, plan, heating, biomass, economy. The review of ERDA's Plan for solar and geothermal technology is an attempt to examine the plan with as balanced a view as possible, in order to identify and summarize for the Congress those areas of the plan in which Congressional interest might be both appropriate and useful in the national interest. There is unanimous appreciation of the problems and difficulties faced by ERDA in preparing the first National Plan for Energy, R, D&D in so short a timespan. Solar-generated electric energy is considered as one principal option for an inexhaustible energy source in the long term, Although no technical barriers exist which could preclude development of solar-generated electricity, the uncertain costs of these plants necessitate a careful development program if they are to be economically competitive. geothermalstatushttp://www.ecotopia.com/apollo2/geothermalstatus.pdf plants, power, electricity, energy, heat, costs, geothermal fluids, California, drilling, clean, exploring. Today there are over 20 plants in the western United States providing a total of about 2,200 MW of clean and reliable electricity. Currently identified resources could provide over 20,000 MW of power in the U.S., and undiscovered resources might provide 5 times that amount. Energy conversion research is aimed at reducing the delivered electricity cost by improving performance, lowering equipment cost, and reducing O&M costs of geothermal power plants. Because geothermal power plants operate at relatively low temperatures compared to other power plants, thermodynamics dictates that they reject to the environment as much as 90% of the heat extracted out of the ground. mcfarlandhttp://www.indiana.edu/~sierra/papers/2002/mcfarland.pdf water, geothermal energy, earth, production, steam, plants, heat, binary cycle, electricity, temperature, dry steam. On average, the temperature goes up about 30 degrees Celsius for every kilometer you go below the earth's crust this is called the geothermal gradient. There are 3 ways that heat can be produced: the sun, collisions from meteors (of which we thankfully have few) and the decay of radioactive isotopes. Coal and nuclear power plants produce electricity by boiling water to turn turbines, which makes electricity. Geothermal energy utilizes the hot water and steam naturally present in the Earth to run generators. There are 3 main ways of approaching the problem of turning hydrothermal fluids (hot water and steam) into electricity: dry steam, flash steam and binary cycle. The diagrams come from INEEL's page What is geothermal energy? dollars_geothermal power plants, energy, electricity, California, taxes, tax, reservoirs, oil, resources, CalEnergy, county. The drilling of production wells, such as these at The Geysers (above) and Imperial Valley (opposite) in California, accounts for a third to a half of the cost of a geothermal project. Geothermal generating capacity in the United States is currently about 2300 MW, distributed among baseload power plants located in four states --- California, Nevada, Utah, and Hawaii. Geothermal energy accounts for around 2% of the country's renewable-source electric generating capacity. Nevada's geothermal plants produce about 210 MW of electricity, saving energy imports equivalent to 800,000 tons of coal or three million barrels of oil each year. Taxes received from geothermal operations are a significant source of revenue for Nevada's local and state governments. news7_31_03> energy, Gawell, power, provisions, nation, tax credit, Senators, bill, geothermal industry, clean, Senate. "We applaud the United States Senate for reaching a compromise and passing vital national energy legislation," said Karl Gawell, Executive Director of the Geothermal Energy Association. "The US faces future shortages of affordable electricity, and the incentives in this bill will help clean, renewable power fill a significant part of that gap," GEA's Executive Director asserted. Of particular importance to the geothermal industry are the tax provisions that expand the Production Tax Credit (PTC) to new geothermal power plants. "Tapping geothermal energy's vast potential is essential to achieve healthier air and cleaner water in the West, and it will reduce the threat of global warming for the entire nation. fact_sheethttp://www2.state.id.us/adm/pubworks/facilities/energy/fact_sheet.pdf Capitol Mall, energy, Administration, employees, geothermal energy, Idaho, buildings, state employees, heating, water, parking. The Department of Administration, Division of Public Works, in partnership with the Department of Water Resources, pioneered the use of geothermal energy with completion in 1982 of the Capitol Mall Geothermal Energy Project. 'Powering Down' of Capitol Mall Buildings, Department of Administration The Division of Public Works -- Facilities Services, began the practice of 'powering down' the 17 buildings it manages in Boise, Idaho Falls and Lewiston nearly 10 years ago. Department Promotion of Alternative Transportation to Mall Employees The Department has actively promoted to state employees the use of alternative transportation methods including car-pooling, use of the city's bus system, and commuting options in the Treasure Valley. | |