Coles signs long-term contract for electricity from three new solar farms

Supermarket giant is the latest in a series of companies that have turned to renewable energy to reduce power bills

Supermarket giant Coles has signed a long-term contract to get electricity from three new solar farms, the latest in a series of companies that have turned to renewable energy to lower power bills.

It comes as a group of 41 retailers and businesses including Bunnings, Harvey Norman, Ikea and JB Hi-Fi plan an unprecedented joint electricity purchase in a bid to reduce costs.