In the filing, the companies commit that the combined company will, within 180 days after the closing of the transaction, sign contracts to divest three Constellation Energy’s power generating stations totaling 2,648MW of capacity.

The generating facilities planned for divestiture are the 1,286MW Brandon Shores plant in Anne Arundel County, the 963MW HA Wagner plant in Anne Arundel County and the 399MW CP Crane facility in Baltimore County, Maryland.

The combined company will also sell 500MW of baseload energy under contracts that will extend until 2015.

The combined company has proposed to make these sales due to a short-term marketing deal that gives Constellation an 85% share of the output of Constellation Energy Nuclear Group units from 2012 through 2014.

In addition to their filing with FERC, Exelon and Constellation have made other filings in support of the merger, including with the Nuclear Regulatory Commission, the New York State Public Service Commission and the Public Utility Commission of Texas.

The companies, which will also file with the Maryland Public Service Commission, plan to seek shareholder approval for the transaction in the third quarter of this year.