National Grid's US Electric Transmission service moves bulk power across New York and New England. It is a regulated high-voltage network, not last-mile delivery. The business also helps bring new wind, solar, and storage projects onto the grid.
The backbone spans significant portions of upstate New York and parts of New England. National Grid earns allowed returns on capital invested in lines, substations, and related infrastructure through state and federal regulation of transmission tariffs.
New York and New England
For utilities, power producers, and grid operators, the network is the corridor that carries electricity in bulk rather than to individual customers. Its assets include overhead lines, underground cables, and high-voltage substations, all built to meet reliability standards set by bodies such as NERC and regional authorities.
That setup creates a practical tradeoff. National Grid needs multi-year rate cases to recover investment and earn a return, but those cases also have to leave room for customer affordability. FERC oversees interstate transmission and some rate design and incentives, while state utility commissions handle many intrastate rate cases and project approvals.
US Electric Transmission
National Grid works with regional planners to reinforce existing corridors, add new lines, and modernize substations so the system can handle different power flows and intermittency patterns. That is the mechanism behind interconnection for new renewable and storage projects in New York and New England.
June 13, 2026 at 12:00:09 PM ET is the review point for this account, and the open question is the same one developers, utilities, and grid operators face next: which specific transmission projects or capital investments are being planned or approved inside the regulated network.
FERC and NERC
The answer will determine how quickly the backbone can absorb more bulk power and where upgrades land first. For a regulated transmission business, the pace of investment is set less by demand alone than by the rate case and approval process that turns construction into recoverable capital.
