-- LONDON -- Explosive charges leveled four giant cooling towers at the world's first commercial nuclear power station Saturday, as engineers began the planned decommissioning of Calder Hall, a 62-building site on Britain's west coast.
Although smaller research reactors had been used previously to generate energy, Calder Hall was the first plant to generate commercial quantities of electricity.
The Shippingport Atomic Power Station, in Pennsylvania, was the first such facility built in the United States. It went into operation in 1957.
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