National Grid and New York Power Authority have energized the 100-mile Smart Path Connect transmission line, delivering $438 million in annual savings to New York households and businesses. The upgrade unlocks 1 GW of renewable capacity and strengthens grid reliability across the North Country and Mohawk Valley.
The Smart Path Connect transmission project has completed energization of its 100-mile, 345 kV corridor through New York’s North Country and Mohawk Valley, featuring four new and ten upgraded substations. This segment joins the earlier 78-mile Smart Path upgrade finalized in mid-2023, creating nearly 200 miles of uninterrupted high-voltage capacity.
The transmission upgrade is projected to deliver $438 million in annual savings by reducing congestion and lowering electricity costs for households and businesses across Clinton, Franklin, St. Lawrence, Lewis and Oneida counties.
By unlocking up to 1 GW of renewable energy capacity, including hydropower from the St. Lawrence–Franklin D. Roosevelt project, the line enables more efficient clean power flow into downstate markets and supports future additions of wind and solar resources.
National Grid handled construction of the southern 55-mile segment from Croghan to Marcy, including a new Glenfield substation, while NYPA installed digital substations at Massena, Chateaugay and Croghan and upgraded six existing substations.
