By LongPath TechnologiesLearning Objectives
- Describe what LongPath does and why a laser-based methane network is a different approach from on-site sensors
- Explain how AI attributes and quantifies leaks across a wide-area scan
- Identify that LongPath is both a technology vendor and a monitoring-network operator
What Is LongPath?
LongPath Technologies is a Boulder, Colorado company, founded in 2017 as a University of Colorado spinout, that monitors methane emissions across energy facilities using a ground-based network of laser towers. Each tower uses dual-comb spectroscopy — a precise laser technique — to continuously scan the air over a wide area, and AI then figures out where any detected methane is coming from and how much is escaping. The company describes the result as a kind of radar for methane.
LongPath matters because it covers many facilities at once from a shared network rather than instrumenting every site individually. It is backed by a major US Department of Energy loan and sells monitoring as a service while scaling its coverage. One important nuance: LongPath is part technology vendor and part network operator — it owns and runs the laser towers, so customers buy an ongoing monitoring service rather than a box to install themselves.
💡Key Concept
Laser-Based Methane Detection Network: A wide-area monitoring system in which ground towers fire highly precise laser beams across the air above energy facilities. When the light passes through a methane plume, the gas absorbs a specific wavelength, revealing its presence. Because each tower scans a large area continuously, a single network can watch thousands of sites at once.
What LongPath Does
- Continuous wide-area scanning — laser towers sweep the air over thousands of energy facilities around the clock
- Dual-comb spectroscopy — a precise laser method identifies methane by the exact wavelength of light it absorbs
- Leak attribution — AI works out which facility or piece of equipment a detected plume is coming from
- Emissions quantification — estimates the size of each leak so operators can prioritize responses
- Monitoring as a service — delivers findings as an ongoing subscription rather than equipment for the customer to run
How AI Is Applied
The laser hardware detects that methane is present in the air, but detection alone does not tell an operator which of many nearby facilities is leaking or how large the leak is. That is where LongPath's AI does the work. The models take the raw spectroscopy signals, combine them with wind and atmospheric data, and run atmospheric-transport reasoning backward from the measured plume to attribute it to a likely source.
The same modeling estimates the leak rate, so a customer receives not just an alert but a located and sized emission event. Because one network covers a wide area, the AI must constantly distinguish real, attributable leaks from ordinary background variation across a busy landscape of overlapping sites — the accuracy of that attribution and quantification is the core of the service.
Who Uses LongPath
LongPath serves oil and gas producers and midstream operators who need continuous, independent methane monitoring across large numbers of sites without instrumenting each one. Buyers include environmental, operations, and compliance teams responding to tightening methane rules. The service model also suits operators who prefer to outsource the monitoring infrastructure entirely rather than deploy and maintain their own sensors.
Pricing
LongPath sells monitoring as a service with quote-based, subscription-style pricing. Cost depends on the number and location of facilities covered, the required scan frequency, and the level of reporting and support. Because LongPath owns and operates the tower network, customers pay for coverage rather than buying hardware. Organizations contact LongPath directly for a tailored quote.
Company Details
| Detail | Info |
|---|---|
| Company | LongPath Technologies |
| Founded | 2017 |
| Headquarters | Boulder, Colorado |
| Origin | University of Colorado spinout |
| Category | Laser-based methane monitoring network |
| Notable Backing | Major US Department of Energy loan |
| Website | longpathtech.com |
Strengths
- Wide-area coverage — one network of towers can continuously watch thousands of facilities at once
- Radar-for-methane approach — laser scanning covers the space between sites, not just individual pieces of equipment
- AI attribution and sizing — models trace plumes back to a likely source and estimate leak rates
- Service model — customers get monitoring as a subscription without deploying their own hardware
- Government backing — a major US Department of Energy loan supports the network's build-out and scaling
Limitations and Considerations
- Network dependency — coverage requires towers to be built out near the facilities of interest
- Vendor and operator in one — LongPath owns the infrastructure, so customers depend on its network rather than owning the system
- Attribution is a modeled inference — tracing a plume to a source depends on wind and atmospheric assumptions, not a direct on-equipment reading
- Enterprise scope — subscription, quote-based service aimed at operators, not small teams
Key Takeaways
- LongPath operates a ground-based network of laser towers that continuously scan energy facilities for methane using dual-comb spectroscopy
- Its AI attributes detected plumes to a likely source and estimates leak size, turning wide-area detection into actionable events
- LongPath is both a technology vendor and a monitoring-network operator, selling coverage as a service and backed by a major US Department of Energy loan
- Best for oil and gas operators that want continuous, independent methane monitoring across many sites without deploying their own hardware
