ENEL inaugurated in the first concentrating solar power plant in Sicily, Italy: the idea is not new, the mirrors of Archimedes after 23 centuries, updated by Charles Rubia, will create clean energy.
2000 years ago, Archimedes used mirrors "hot" as incendiary weapons against Roman ships besieging Syracuse in the second Punic War in 212 BC, the idea is simple, was recovered by scientists of the third millennium to produce electricity. Thus, solar thermal power plant was dedicated to the greek inventor.
ENEA, the Italian scientist and Nobel Prize for Physics Carlo Rubbia said that the cost of producing solar energy concentration will soon be similar to that of fossil fuels.
By reworking an old project solar thermal (or concentration) experiments in Priolo Gargallo (Italy) in the same area where lived Archimedes, a new system of mirrors to concentrate sunlight into a boiler, and thus produce steam at high pressure (using the heat produced by the concentration) with a capacity of about 20 MW.
Sunlight concentrated solar energy using mirrors in a single point, which increases the energy density of 100-200 times compared to a normal situation. Receuillir energy becomes kinetic energy and electricity by the same principles of a traditional power plant.
Thermal energy is stored for use time differed from that in which it collects and allowing the production of electrical energy in a continuous cycle, even at night or in the absence of sunlight, but in minor amount.
The plant, rather than using rows of parabolic mirrors to concentrate the sun does in a tube which passes an oil flow, using a molten salt companys Italian Angelantoni (www.angelantoni. it) in partnership with Siemens on Patent Enea.
is the first factory in the world using this system! is in line with major projects such as DESERTEC (www.desertec.org) where a group of companies Europe is building dozens of plants of this type in North Africa and Sub-Saharan Africa.
The Anest (National Association of solar thermal) has pointed out that in Italy there is the possibility of achieving in the next ten years that plants can produce 3000-5000 MW, with the creation of more of 30,000 jobs.
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