Rotherham Council has joined energy regulator Ofgem to raise awareness of a new initiative aimed at cutting home energy bills.
Consumers who want to save money on their gas and electricity are being offered the chance by clubbing together to buy it in bulk.
The initiative is being led by consumer group Which? and online campaigning group 38 Degrees.
The groups are asking residents to register interest by providing their name, postcode and email address to www.whichbigswitch.co.uk