They walked off the job two weeks ago, but ENSTAR union employees are going back to work without a new contract.
ENSTAR business development director John Sims said Wednesday night that the utility accepted an unconditional offer from the union for striking employees to return to work.
Sims said "ENSTAR expects all operating employees will be returning tomorrow (Thursday) for their normal work shifts".
Members of Plumbers and Steamfitters Local 367 said during the strike they were fighting to keep retirement plan conditions the same for future employees.
ENSTAR and the union tried to negotiate back in January, but the union had a split vote on the latest contract offer meaning no agreement could be reached.
Contract talks are expected to continue.