Concentrated solar power, also called solar thermal, is a means of gathering solar energy distinct from the use of photovoltaic (PV) panels. Instead of directly converting solar energy to electricity, as in PV panels, concentrated solar power concentrates sunlight onto a relatively small point, which heats a medium. The heat from the medium is then either transferred directly to the target to be heated, such as a swimming pool, or connected to a generator for producing electric power.
Unlike commercial PV panels, which have an efficiency of about 17-19%, concentrated solar power efficiency ranges from 40-60%. There are three types of concentrated solar power devices -- low temperature devices (used to heat pools), medium-temperature devices (used to heat water for commercial or residential use), and high-temperature devices (used to generate electricity). Concentrated solar power is cheaper than solar panels, as it primarily consists of mirrors to concentrate the sun's rays, rather ... more.
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