As the system is powered up and the top section of salt is heated, the negatively buoyant divider plate lowers; then, at night or in cloudy conditions, it rises, driven by actuators, to continue to feed the system turbines to produce electricity.
This ceiling is certainly worth its salt
Derived from the molten salt baths used in industrial metal treatment, the CSPonD tank is lined with “firebrick” — mortarless insulating refractory brick — set in a carbon-steel shell coated with ceramic-fibre insulation.
27 January 2012 11:24 GMT
Updated
26 November 2012 5:55 GMT
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