ComEd to unveil corridors for Grand Prairie-Gateway

Commonwealth Edison (ComEd) will unveil the corridors it has identified for the proposed Grand Prairie Gateway project across northern Illinois at three public open houses Aug. 13 – 15, and plans to identify specific routes and alternates within those corridors in September, a ComEd spokesperson told TransmissionHub Aug. 9.

The open houses will be held in Rochelle, South Elgin, and Sycamore, Ill., and will provide residents with an opportunity to express concerns, ask questions, and learn more about the planned 345-kV project, which the utility has said previously would primarily cross agricultural land.

As previously reported, ComEd plans to build the 57-mile transmission project across Ogle, DeKalb, Kane and DuPage counties in northern Illinois. The project, which will be the third west-east line to cross its service territory, will connect the company’s existing Byron and Wayne substations.

PJM has approved the project as the best solution for addressing current system congestion and ensuring the continued efficient flow of electricity across northern Illinois, ComEd said on its project website.

PJM identified the line as a solution for resolving auction revenue rights (ARR) infeasibility constraints in ComEd’s zone. ARRs are the mechanism by which proceeds from the annual financial transmission rights auction are allocated.

The project also alleviates constraints on market-to-market flowgates near the boundary with the Midcontinent ISO (MISO), PJM said.

The project is estimated to cost $109.6m, according to PJM interconnection’s 2012 regional transmission expansion plan (RTEP).

The company will file an application for approval of the project with the Illinois Commerce Commission before the end of 2013. If approved, the project is planned to enter service in June 2017.  

ComEd is a subsidiary of Exelon (NYSE:EXC).