Emera Inc. subsidiary Emera US Holdings Inc. filed an application with the Federal Energy Regulatory Commission, seeking approval to sell three natural gas-fired facilities in New England to affiliates of Carlyle Group LP.

The deal, first announced on Nov. 26, is valued at $590 million. It involves the sale of the Bridgeport Energy plant in Fairfield County, Conn., the Rumford plant in Oxford County, Maine, and the Tiverton plant in Newport County, R.I., all in the ISO New England market.

According to the FERC application, the Bridgeport facility has a summer rating of 492 MW, the Rumford plant has a summer rating of 254 MW, and the Tiverton project has a summer rating of 268 MW.

The commission has been requested to approve the deal by March 14, 2019. (FERC docket EC19-35)