North Central Reliability project will upgrade transmission lines and substations from existing 138kV power to 230kV power in the northern and central regions of the state.

The upgrade is required by the PJM Interconnection, the independent regional planning organization, and the project cost is currently estimated at between $300m – $350m.

The transmission upgrade project will provide reliable electricity for New Jersey businesses and residents, and will reduce transmission system congestion in the region.

The project will upgrade existing PSE&G transmission lines and stations along its right-of-way from the Roseland Switching Station in Essex County to the West Orange Switching Station in Essex County and to the Sewaren Switching Station in Middlesex County.

The company said it will file for project approval with the New Jersey Board of Public Utilities in May of 2011.

The project work is expected to begin in early 2012, with an in-service date of June 2014.