Solar Power Towers Can Make The World Go Green
Solar Power Towers Can Make The World Go Green
Solar Power Towers Can Make The World Go Green
Source: Alice Maria Tiriac
Last year, eSolar opened the Sierra Sun Tower. According to their website, the Sierra facility supplies 5 MegaWatt of clean, renewable energy to the public grid. The sierra sun tower is the only commercial CSP tower in the United States. It will supplie electricity to Southern California Edison (SCE) and power up to 5,000 homes.
UBS Wealth Management, moreover, is predicting that the relatively small market for concentrated solar power tends to expand, with projected growth of almost 20 gigawatts in new capacity over the next decade. UBS analysts Gianrento Gamboni and Christoph Hugi, refers to the new projects in the United States and Spain as they say "After a long period of stagnation, the market is evolving more dynamically."
What is a solar power tower?
A major advantage: Solar thermal plants produce electricity whose current and future costs are known.
To get detailed information on these topics please visit : www.ecofuture.net
The best locations for solar power plants are massive lands, such as deserts, for which there might be few other uses; but again, then comes the problem of how to provide the necessary water.
The factsheet in the released in the webpage of governement of CA, claims that as experience is gained with this technology, the acreage requirements
will likely be reduced due to more efficient placement of the heliostats.
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Five Examples:
Solar Tres, whichis located in the city of cija, in Andalusia, Spain andreceived a subsidy of five million Euro from the European Commission, follows the Solar Two in using molten salt but is designed to be three times of it in size.
Later, in 1995 it was converted into Solar Two, with the addition of a second ring of 108larger heliostats around the existing SolarOne. The total number of heliostats became 1926 on an area of 82,750m. SolarTwo used molten salt, which is a combination of 60%sodium nitrate and 40%potassium nitrate, instead of water.
Solar One, a pilot solar-thermal project built in the Mojave Desert (CA, USA) was the first test of a large-scale thermal solar power tower plant. It was designed by the Department of Energy (DOE), Southern California Edison, LA Dept of Water and Power, and California Energy Commission. Solar One's method of collecting energy was based on producing heat to drive a steam turbine.Europe's first commercial solar tower PS10 is locatednear the Southern Spanish city of Seville. It produces electricity of 11 MW with 624 large heliostats with surfaces of 120 square meters each. The height the tower is 115 meters. The PS20 solar power tower is also nearSeville. The capacity is 20 megawatt. The tower is taller than PS10, it is 160 meters. The THEMIS solar power tower, located near the village of Targassonne, in the dpartement of Pyrnes-Orientales, South of France, is a R&D center focused on solar energy, as well as a photovoltaic power facility and a solar thermal energy plant. It had a power output of 2 MW in 1983.
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