Food waste may store solar, wind energy

London: Sugar alcohols – an abundant waste product of the food industry – mixed with carbon nanotubes could be used to store excess solar and wind energy for times when the Sun is down or the air is still, scientists have found.

Electricity generation from renewables has grown steadily over recent years.

To keep up with this expansion, use of battery and flywheel energy storage has increased in the past five years, researchers said.

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