Tesco is weighing up 80 stores as potential sites for wind turbines in its bid to use more renewable energy.

The multiple has just won permission for two 20kwh turbines in Barrow and one in Crewe. Once fitted - probably on either the roof or in the car park - these will be able to power lighting, heating and refrigeration in stores.

The retailer has also made further applications to planning authorities around the country.

A Tesco spokeswoman said the turbines would be funded by its £100m sustainable energy fund. "These applications need to go through different stages as you need to meet lots of criteria, so it could be a few months before work goes ahead."

But she envisaged no objections from locals, because there was an increased awareness of environmental issues.

Tesco already has five roof-fitted wind turbines at its Diss store. These provide enough electricity to power all 15 of the store's tills.

Sainsbury's was the first retailer in the UK to use turbines, in 2001, and now has them installed on several stores across the UK, as well as on its East Kilbride depot.

Asda recently submitted plans for its first wind turbines to be put on distribution centres in Falkirk and Grangemouth.