A New Burst of Energy for Greater Boston!
NSTAR Completes Largest Job in Company’s History

In April, 2005, crews began work on the landmark 345 kV Transmission Reliability Project, one of the most ambitious in NSTAR’s history and one of the largest high-capacity, high-voltage underground electricity project undertaken in the history of American utility systems.

The project would allow NSTAR to increase by a full 50 percent the amount of energy it could import into the Boston and surrounding communities, dramatically strengthening the transmission system and improving the reliability of electric service to customers in Boston and the surrounding towns and communities.

The new transmission lines run through several Boston neighborhoods including South Boston, Hyde Park, Dorchester, and Mattapan, and extend south through Milton, Canton and North Stoughton.

By energizing the final underground transmission line in Winter of 2008, NSTAR officially completed the nearly 18-mile project.

The project featured many complicated elements of construction including new switchyard construction, substation enhancements, excavation along heavy traveled roadways and congested neighborhoods, and installing transmission line conduit and cable.

A critical factor in its success was the assistance and cooperation of the residents, businesses and officials in the communities impacted by the project. Despite the inconveniences created by the ongoing work, their courtesy enabled the men and women working in the field to do their job quickly and efficiently.

NSTAR would like to thank everyone who has expressed interest in the project throughout the years, especially the residents, businesses and community leaders along the construction corridor. We greatly appreciate the patience and cooperation you extended that enabled us to complete this major undertaking, and bring a much-needed new source of power to the region.

For more information on NSTAR, please visit www.nstar.com.