More than 3,600 households have signed up to the Lincolnshire Energy Switch – and will each save an average of £167.
Seven Lincolnshire local authorities promoted the scheme, in which energy suppliers were able to bid with lower energy prices.
The "Big Six" and smaller independent suppliers were all able to propose tariffs for the supply of potentially thousands of people signed up to a collective pool.
The four that won the chance to supply on different tariffs were Ovo Energy, Scottish Power, newcomer Green Star Energy and British Gas.
Letters and e-mails offering the new tariffs and spelling out the potential for savings are being sent out to households now.
Potential savings can range from a few pounds to £300 or more, with the average across all 3,600 registered households being £167.
There is no obligation for people to accept their offer and switch.
The deadline for accepting the offer is Monday, March 31 2014.
Karen Lond, lead officer on the Lincolnshire Energy Switch, said she was very enthused by the response tot he scheme and the potential for people to make savings if they decided to make the switch to a new provider.
"If all of the Lincolnshire households that registered switch, they could collectively save more than £600,000," she said.