The merger application was filed by the companies with the commission in May 2011, and the companies also filed a settlement agreement with all parties to the application in October 2011.

AES executive vice president Andrew Vesey said with the final approval in place, AES can now turn its focus on closing the transaction and integrating DPL into the AES family of businesses.

According to AES, the transaction is expected to close as early as 28 November 2011.