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How sun, salt and glass could help solve our energy needs

High in the stark Nevada desert, a couple of hundred miles north-west of Las Vegas, is the shimmering circular mirage of Crescent Dunes. Ten thousand silvery glass panels, each measuring 115 square metres, surround a tall central tower, which stands…

Renewables are often only as useful as the grid they feed

Scotland recently experienced one of its windiest days of the year with gusts reaching over 180 km/h on top of the country’s highest mountains. While they were disruptive to trains, ferries and car traffic, the winds had the capacity to…

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