Sewaren-Metuchen 230kV Conversion Project

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About the Project

The Sewaren-Metuchen 230kV Conversion Project was a $125 million investment to build a 230kV transmission system running from PSE&G’s Sewaren Switching Station in Woodbridge, NJ to its Metuchen Switching Station in Edison, NJ.

Mandated by PJM Interconnection, the regional transmission organization (RTO) responsible for planning the transmission system in all or parts of 13 states, including New Jersey, the project was designed to replace the existing 138kV transmission system from Woodbridge to Edison with a 230kV transmission system. PJM determined that this new transmission system was necessary to ensure reliable electric service, eliminate anticipated transmission constraints, and respond to PJM/Federal Energy Regulatory Commission (FERC)-mandated infrastructure expansion. The project eliminates electric system capacity issues in Central New Jersey, providing better power quality in the region.

The project required overhead transmission modification within existing PSE&G right of ways. There were major upgrades to four existing PSE&G stations, including the expansion of the Metuchen Switching Station. The route and stations extend through two municipalities in Middlesex County, Woodbridge and Edison. The existing 138kV lattice towers supporting the overhead lines were replaced with monopole structures. Existing stations were upgraded entirely within existing fence lines.

For more information on this project, please contact:

Kevin M. Kimbo
1-888-314-3332

For media inquiries regarding this project, please contact:

PSE&G's Media Hotline
973-430-7734
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  • Why is this project needed?

    PJM, the regional entity responsible for planning the transmission system, identified the need for the Sewaren – Metuchen 230kV Conversion Project, which is designed to deliver the electric power required by New Jersey businesses and residents.

    The PSE&G Sewaren – Metuchen 230kV Conversion Project will improve electric reliability and eliminate the need to build a new generating station. It will also replace aged equipment, as well as equipment that was damaged during Superstorm Sandy. The project will require overhead transmission upgrades and modifications to existing electric stations.

    People are using more electricity to power everything from big-screen televisions to computers and the latest kitchen appliances. Sections of the existing transmission system in the project area dates back to the 1940’s.

    How was this route selected?

    The selected route for the overhead upgrade follows existing PSE&G right-of-ways for the project from the PSE&G’s Sewaren Switching Station in Woodbridge Township (Sewaren), NJ to the Metuchen Switching Station in Edison, NJ, thereby minimizing the construction impact to the surrounding communities.

    Where will it go?

    The project will require overhead transmission modification within existing PSE&G right of ways. There will be major station upgrades or reconfigurations to four existing stations, including the expansion of the Metuchen Switching Station. The route and stations extend through two municipalities in Middlesex County: Woodbridge Township and the Township of Edison. The existing 138kV lattice towers supporting the overhead lines will be replaced with new monopole structures. Existing stations will be upgraded entirely within existing fence lines.

    When will it be built?

    Station construction began in the 3rd Quarter of 2014. Major overhead construction activity is expected to commence in the 2nd Quarter of 2015. The project has an anticipated in-service date of June 2016.

    How much will it cost?

    The project cost is estimated to be $125 million.

    What are the benefits to the region?

    The work within our stations and right of ways will be beneficial to deliver safe, reliable electric service to our customers, increase the resiliency of the electric transmission system, and foster economic growth in New Jersey by creating construction jobs and providing vital electric service for further economic growth.

    What approvals are you seeking?

    PSE&G will secure all required permits and approvals from all federal, state and local governmental agencies with jurisdiction over the upgrade project.

    Do the lines produce electric and magnetic fields?

    Electric and magnetic fields are present wherever there is a flow of electric current, whether in wires in the home, electrical appliances, or power lines. Electric fields are produced by the voltage or electrical pressure in a wire and are present even if an appliance is turned off, as long as it is connected to a source of electric power. Magnetic fields are produced whenever there is a flow of electric current through a wire. Electric and magnetic fields are not visible, like other fields such as a gravitational field or a temperature field.

    Are electric and magnetic fields (EMFs) harmful?

    The overwhelming body of scientific study shows no definitive link between EMF and human health issues. Since 1977, concerns over magnetic fields and possible health effects have been the subject of numerous scientific and regulatory review panels, and extensive research and studies continue to be funded in this field of study.

    After nearly 30 years of worldwide research, there are no direct or causal links between electric and magnetic fields and adverse health effects. New Jersey has standards regarding maximum permissible electric fields at the edge of transmission line rights of way. However, there are no state standards with regards to magnetic field levels nor are there any federal rules, regulations or standards for either electric or magnetic field levels.

    Magnetic fields from appliances like hair dryers, microwave ovens, and motorized appliances are often stronger than the fields directly beneath power lines. PSE&G will design and install this line according to appropriate state and federal guidelines related to safety and environmental impact.

    Learn more about EMF 

    Contact Us

    For questions and comments about the Sewaren – Metuchen 230kV Conversion Project, call the Sewaren – Metuchen 230kV Conversion Project Information Line at 1-888-314-3332.

    For media inquiries about the Sewaren – Metuchen 230kV Conversion Project, please call PSE&G's Media Hotline at 973-430-7734.