Residents are being told they could save money by switching their supplier with the Lincolnshire Energy Switch Scheme.
The scheme will see energy suppliers compete with their best offers for those who have signed up.
The scheme is free for households to join and there is no obligation to take up the winning offer.
To register visit www.lincolnshire.gov.uk/switch or call the free phone number 0800 048 8439 from 8am-5.30pm, Monday to Friday.
The deadline is Monday, May 16.