'A role model': how Seville is turning leftover oranges into electricity

Last modified on Tue 23 Feb 2021 13.14 EST
In spring, the air in Seville is sweet with the scent of azahar, orange blossom, but the 5.7m kilos of bitter fruit the city’s 48,000 trees deposit on the streets in winter are a hazard for pedestrians and a headache for the city’s cleaning department.
Now a scheme has been launched to produce an entirely different kind of juice from the unwanted oranges: electricity. The southern Spanish city has begun a pilot scheme to use the methane produced as the fruit ferments to generate clean electricity.
The initial scheme launched by Emasesa, the municipal water company, will use 35 tonnes of fruit to generate clean energy to run one of the city’s water purification plants. The oranges will go into an existing facility that already generates electricity from organic matter. As the oranges ferment, the methane captured will be used to drive the generator.

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