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technology reporter James Purtill

Concentrated solar power is an old technology making a comeback. Here's how it works

NT Electricity CSIRO Craig Wood Sun ARENA CSP Australia Renewable Energy

The 100MW Cerro Dominador CSP plant in the Atacama Desert, Chile. (Getty Images: John Moore)

There was a time, not long ago, when the future of electricity generation looked something like the opening scene of Blade Runner 2049, with endless arrays of mirrors in concentric circles.

Concentrated solar power (CSP) uses mirrors to focus heat from the Sun to drive a steam turbine and generate electricity.

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