Pioneer Transmission, a joint venture (JV) between American Electric Power (AEP) and Duke Energy, will develop a 55-mile power transmission project with Tennessee Valley Authority (TVA) in the US states of Indiana and Kentucky.

The parties plan to construct a 765kV power line connecting AEP’s Rockport Station, east of Evansville, Indiana, with TVA’s Paradise Station in Drakesboro, Kentucky.

The project, which will also include construction of a new 765kV substation at Paradise, is expected to cost about $275m.

The Rockport-Paradise proposal will be submitted to PJM Interconnection, a US-based power marketer, for consideration in its regional planning process.

The project also requires siting approval from the Kentucky Public Service Commission.