Solar concentrators
Over the following years, inventors such as John Ericsson and Frank Shuman developed concentrating solar-powered devices for irrigation, refrigeration, and locomotion. CSP is used to produce electricity (sometimes called solar thermoelectricity, usually generated through ). As a thermal energy generating power station, CSP has more in common with such as coal, gas, or geothermal. A legend from later centuries has it that not only used the , but also a "burning glass" to concentrate sunlight on the invading Roman fleet and repel them.
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