The costs of repairing WEC Energy Group’s downtown Milwaukee headquarters, from what the company said was a superheated steam release when the company’s underground steam-power tunnels flooded in May 2020, have risen to an estimated $60 million. Wisconsin Electric customers will be required to pay a portion of the costs not covered by insurance, but the company has absorbed some of the costs. The company’s initial estimate in June 2020 was about $10 million, but by August 2020, Wisconsin Electric estimated restoration work would cost up to $37 million in a letter to the Public Service Commission of Wisconsin.