Type of solar furnace with a tower receiving focused light
This article is about a particular design of Solar thermal energy using mirrors. For the astronomical instrument and other uses of the term, see solar tower (disambiguation). For other tall structures used for electricity power generation, see Energy tower (disambiguation).
Concentrating solar power towers:
Top: Solar towers of the Ivanpah facility, the world's largest solar thermal power station in the Mojave Desert, southeastern California
Middle: PS10, the world's first commercial solar power tower in Andalusia, Spain (left) and Ashalim Power Station in Negev, Israel (right)
Bottom: The THEMIS solar power tower in the Eastern Pyrenees, France (left) and the German experimental Jülich tower (right)
A solar power tower, also known as 'central tower' power plant or 'heliostat' power plant, is a type of solar furnace using a tower to receive focused sunlight. It uses an array of flat, movable mirrors (called heliostats) to focus the sun's rays upon a collector tower (the target). Concentrating Solar Power (CSP) systems are seen as one viable solution for renewable, pollution-free energy.[1]
Early designs used these focused rays to heat water and used the resulting steam to power a turbine. Newer designs using liquid sodium have been demonstrated, and systems using molten salts (40% potassium nitrate, 60% sodium nitrate) as the working fluids are now in operation. These working fluids have high heat capacity, which can be used to store the energy before using it to boil water to drive turbines. Storing the heat energy for later recovery allows power to be generated continuously, while the sun is shining, and for several hours after the sun has set (or been clouded over).
^"The cost of Concentrated Solar Power fell by 47% between 2010 and 2019 | REVE News of the wind sector in Spain and in the world". 29 July 2020. Retrieved 2022-04-16.
A solarpowertower, also known as 'central tower' power plant or 'heliostat' power plant, is a type of solar furnace using a tower to receive focused...
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