The commission’s approval came with 40 conditions, including a $113.5m fund to assist customers, a $100 customer rebate and more investments in green energy.

Exelon president and chief operating officer Christopher Crane said the companies have accepted the additional conditions that the commission has imposed.

The Exelon-Constellation merger now only requires approval from the Federal Energy Regulatory Commission.

Constellation chairman, president and CEO Mayo Shattuck III said the merger will greatly benefit the state of Maryland, City of Baltimore and the customers of Constellation’s subsidiary Baltimore Gas and Electric Co.