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Electric Transmission
Our electric transmission system — more than 4,000 miles of overhead and underground high-voltage wires and substations — plays an essential role in connecting customers across New England with reliable, affordable power.
The power grid is undergoing significant changes to achieve carbon reduction targets outlined in state and regional policies, and help us achieve our own goal to have carbon-neutral operations by 2030.
The power grid is the interconnected network that delivers electricity from where it’s generated to where it's consumed.
Power Grid 101: How our electric transmission system delivers energy to your home
We continue to ensure the grid is ready to meet an increase in demand from electrification through innovative projects like our Greater Cambridge Energy Project, our first underground substation designed to handle enough energy to meet 100% of the city's projected goals for residential electric vehicle and heating adoption.
We're also making significant investments that enable our transmission system to integrate clean energy resources, including nearly 1,300 MW of solar and wind energy by 2024, and better withstand the increasingly extreme weather events and other issues associated with climate change.
Investments in the power grid have three key benefits:
Transmission lines bring reliable electricity to millions of people and are critical to delivering clean energy. Our contract crews are flown by helicopter to conduct transmission work, allowing for minimal impact to wildlife whilst increasing reliability.
Transmission rules
Transmission Interconnections
We're a recognized industry leader in transmission construction and operation that is committed to sustainability and environmental stewardship.
We can assist the transmission customer in obtaining use of our system, siting feasibility studies, requirements for access to facilities and more.