National Grid Completes Major Upgrade of Canada-New England Transmission Link WALTHAM, MA--(Marketwired - July 12, 2016) - National Grid recently completed a major upgrade to its portion of a 960-mile, 450 kilovolt high-voltage direct-current, or HVDC, transmission system that...

National Grid Completes sea2shore Cable Landing WALTHAM, MA--(Marketwired - June 30, 2016) - Bringing off shore, wind generated energy to the U.S. electric system for the first time took a major step forward this past weekend with the landing of a...