Continuous Methane Monitoring for Smoother Operations and Fewer Surprises

Quarterly SEM surveys and aerial audits are expensive, labor-intensive, and leave blind spots. Meanwhile, odor complaints and gas collection system issues don’t wait for the next quarterly inspection. TrelliSense gives landfill operators a tool to fill the gap: continuous, site-wide methane visibility that’s affordable, actionable, and easy to run.

Our laser-based, open-path system lets you know what’s happening across your landfill in real time—whether it’s the working face, a gas collection wellfield, or sectional cover. That means faster fixes, more gas collected, fewer odor complaints, and clear records that support compliance and community trust.

Why Landfill Operators Choose TrelliSense

  • Always on – Continuous monitoring with sub-minute updates, day and night - capturing the diurnal emissions variability typical of landfills.

  • Actionable insight – Point-source leak sizing and smart filtering cut noise so crews focus on the right fix.

  • Operational efficiency – Identify cover integrity issues and collection system problems before they become costly.

  • Cost-effective – Cover large areas - including the working face - with only a few sensors.

  • Zero disruption – Sensors are self-powered and flexibly sited to avoid operational disruption.

Map of the United States and Mexico with numerous red circles indicating locations, some clustered around Texas and Mexico. The map shows city names and geographical regions, with a distance scale at the bottom left.

New open-source tools such as NASA’s EMIT Open Data Portal are providing more and more emissions “snapshots” to industry and the general public - bringing transparency to super-emitters.

How TrelliSense Works at Landfills

Monitor

Ground-based lasers track methane continuously across the surface.

Size

Analytics classify emissions (small, medium, large) with laser-grade accuracy.

Localize

Spatial dashboards and alerts guide field crews to the right spot at the right time.

Verify

Clear logs and historical data access to confirm abatement actions.

Features Built for Landfills

Above-ground monitoring – No probes, drones, or flux chambers required.

  • Flexible deployment – Sensors move as the working face or wellfield shift, keeping coverage uninterrupted.

  • Fast install – Operational in a single day with no disruption to landfill operations.

  • Portable design – Solar-powered hardware adapts to your site’s needs.

  • Weather sensors onboard – Self-collected wind and weather data support localization and quantification.

  • Data you own – Full access to dashboards, logs, and exports for your needs.

Proven Value for Landfill Operators

  • Reduce reliance on costly, labor-heavy SEM surveys.

  • Maximize gas recovery by identifying collection inefficiencies.

  • Minimize odor complaints with proactive monitoring and faster fixes.

  • Maintain compliance with evolving methane standards.

  • Strengthen sustainability reporting with verifiable, MRV-ready data.

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