New Source Review
In 2007 AEP entered into a court-approved settlement of New Source Review (NSR) litigation. The original consent decree had specified that AEP would install flue gas desulfurization (FGD) systems on the Rockport units, Big Sandy Unit 2 and Muskingum River Unit 5.
On Feb. 22, 2013, AEP and other parties to the Consent Decree filed a proposed modification to the decree with the U.S. District Court for the Southern District of Ohio, Eastern Division. The modification would lower a system wide sulfur dioxide (SO2) emission cap for AEP plants that becomes increasingly stringent through 2029. The modification also gives us more flexibility in how we meet these requirements.
Under the new agreement, AEP will:
- Install lower-cost dry sorbent injection (DSI) technology for SO2 emission reduction at both units of Rockport Plant in Indiana and achieve SO2 emission reductions sooner than required under the consent decree. Other highlights of the pending agreement are:
- Retire or refuel with natural gas Tanners Creek Unit 4 in Indiana
- Have the option of retiring or refueling with natural gas Big Sandy Unit 2 in Kentucky
- Have the option to retire or refuel with natural gas Muskingum River Unit 5 in Ohio. Read more about this modification on AEP.com.
NSR Consent Decree Annual Report Archive (PDF)