The proposed $1bn bi-directional, high-voltage direct current (HVDC) transmission line will allow the customers to access energy from the markets of the Ontario Independent Electricity System Operator (IESO) and PJM Interconnection, a regional transmission organization in the US.

ITC international and merchant development vice-president Terry Harvill said: "The bi-directional design of this transmission line means that electricity can flow into Ontario from a new route, helping improve the security and reliability of the power grid, and the line also could potentially play a role in emergency grid restoration in the province.

"The Lake Erie Connector would also provide Ontario with access to a new market to export its excess supply of energy."

The 73 mile, 320kV transmission line will interconnect with converter stations in Erie, Pennsylvania and Nanticoke, Ontario, and also to the existing Penelec ErieWest Substation through a 345kV AC underground transmission line.

In addition to filing permit with the NEB, the company, is seeking approval from the US Energy Department, the US Army Corps of Engineers and the Pennsylvania Environmental Protection Department.

The project’s state, federal, and provincial permits are expected to be in place by second quarter of 2017 in order to commence construction in the same year, and begin commercial operation in 2019.

ITC plans to issue an open solicitation for the project capacity, subject to NDA approval, in June.