Project Need

The north valley is currently served by a single 138,000 volt transmission line. An outage on this line results in power loss to all of the Ketchum and Sun Valley area.

A second transmission line to the north is critical for reliable electric service, and a plan now exists to provide for that.

Wood River Electrical Plan

The Wood River Electrical Plan was developed through a collaborative process with Idaho Power and the Wood River Community Advisory Committee (CAC) in 2007.

The plan describes the transmission facilities needed to reliably serve the valley into the future. As a result of that planning effort, Idaho Power is initiating the first project recommended by the CAC – to construct an additional 138,000-volt (138 kV) transmission line between Hailey and Ketchum.

The CAC, on behalf of valley customers, recognized the need for a second transmission line from Hailey to the Ketchum/Sun Valley area.

Improved Reliability, Increased Capacity

This new line will serve as a second source to the north valley to help minimize the risk of a catastrophic outage to the citizens and businesses of the Ketchum and Sun Valley areas. It will also provide additional capacity for future growth.

Idaho Power is proceeding according to the plans described in the Wood River Electrical Plan. The project team is currently preparing preliminary line designs and route options for the new transmission line.