Sensors on the tower. Artificial intelligence on the wind. More power through the wires we already have.
LineVision, Inc. - the grid-intelligence company that reads a power line without ever touching it. Boston, MA.
Every static transmission line carries a hidden margin. Its capacity is usually rated for the hottest, most windless day of the year - a worst case that rarely arrives. On an ordinary afternoon, with air moving over the conductor, that same line can safely carry far more current than its label allows. LineVision built a company around closing that gap.
Founded in Boston in 2018 by Hudson Gilmer, Jonathan Marmillo and Nathan Pinney, LineVision makes non-contact sensors and software that measure a transmission line's real, moment-to-moment capacity. The sensors bolt to the tower rather than the live wire, track the conductor with LiDAR, and feed a platform that combines hyperlocal wind forecasting with a computational fluid dynamics model. The output is a rating that updates in real time - a practice the industry calls Dynamic Line Rating, or DLR.
The economics are the pitch. On many monitored lines, utilities see capacity gains averaging more than 30%, with some spans reaching triple digits. DLR typically costs roughly 5-7% of a conventional transmission upgrade and installs in months, without the outages, live-line work, or specialized crews a rebuild demands.
That matters because the wires - not the panels or the turbines - have become the bottleneck for clean energy. New projects wait years to interconnect because the grid is declared "full." LineVision's wager is that a meaningful share of that congestion exists on paper, in conservative assumptions, rather than in the copper itself.
Static ratings assume worst-case weather, so utilities routinely leave usable capacity unused - and turn away power that the lines could carry.
New wind and solar projects queue for years because the network is declared full. Building new transmission can take a decade.
Without live data on conductor position, sag, and environmental risk, utilities lack the situational awareness to run lines closer to their true limits safely.
LineVision replaces conservative guesses with real-time measurement - turning the wind itself into extra, safely usable grid capacity.
Dynamic line ratings are allowing us to get more capacity out of our existing networks.
- National Grid, on grid-enhancing technologySolar-powered, tower-mounted sensors use LiDAR to track the conductor's exact position - no outage, no contact with the live line.
Hyperlocal, AI-driven wind forecasting is fed into a computational fluid dynamics model of airflow over the line.
The platform continuously computes the conductor's true thermal capacity and validates it against direct measurements.
Operators see a live rating and situational alerts in the portal - and safely push more power through the same wires.
Real-time and forecasted thermal capacity, blending AI wind forecasting, CFD modeling and sensor validation. Typically unlocks 30%+ more capacity.
Live monitoring of conductor sag, sway and clearance to catch anomalies, encroachments, ice accumulation and wildfire risk.
Continuous diagnostics on conductor condition and behavior to support predictive maintenance and smarter capital planning.
Patented LiDAR sensors feed the NexusIQ portal. Deployed at scale with no scheduled outages, live-line work or specialized equipment.
LineVision's customers are electric transmission and distribution utilities and grid operators - roughly 30 of them across the US and Europe, including National Grid, Dominion Energy, Xcel Energy, NV Energy, AES, Sacramento Municipal Utility District and Duquesne Light Company. These are deliberate, safety-first organizations, and winning them takes patience.
The founders have been candid that the early years meant escaping what the industry calls "pilot hell" - a cycle of small, R&D-funded trials that never scale. The turn came in 2022, when National Grid moved LineVision's technology out of a pilot and into live grid operations. Its Western New York deployment became the largest operationalization of Dynamic Line Ratings in the United States, and the first in the state.
In the market, LineVision sits within the fast-growing category of grid-enhancing technologies, alongside DLR peers such as Ampacimon and Heimdall Power and power-flow players like Smart Wires. On a five-year National Grid program, several of these vendors work in parallel. LineVision's differentiator is its non-contact, tower-mounted sensing paired with AI wind forecasting and CFD modeling - reading the line without ever attaching hardware to the live conductor.
The business model follows the pattern of industrial software: deployed sensor hardware plus subscription analytics, sold against the cost and multi-year lead time of building new transmission. As an ISO 27001-certified vendor operating on critical infrastructure, LineVision leans on secure data handling as part of the pitch.
Hudson Gilmer, Jonathan Marmillo and Nathan Pinney launch LineVision to measure transmission capacity in real time.
Clean Energy Ventures backs the company as it develops and validates its patented non-contact sensor.
UP Partners leads a round with National Grid Partners and ZOMA Capital to scale grid-enhancing technology.
A Series C from Climate Innovation Capital, S2G Ventures, Microsoft and Marubeni; National Grid moves LineVision into operations.
LineVision sensors on National Grid lines in Western New York are fully integrated into grid operations.
An expanded grid-enhancing technology rollout backed by a $19.7M US Department of Energy grant.
Profile compiled from public sources including LineVision's website and newsroom, Crunchbase, CB Insights, Utility Dive, Latitude Media, IEEE Spectrum and Forbes. Figures such as capacity gains and cost ratios reflect publicly reported ranges and vary by line and conditions. Some operating details are approximate.