METEC 2.0 Controlled Test Protocol

At METEC, the testing program using the Emission Detection and Quantification Controlled Test Protocol is called ADED 2.0.
Background:
The objective of this international protocol is to standardize methodologies for leak detection and quantification testing across diverse geographic and regulatory environments, fostering global collaboration and scientific precision in methane emission measurement and control. This protocol aims to integrate and harmonize existing methodologies and solutions tested by Colorado State University’s Methane Emissions Technology Evaluation Center (METEC) and TotalEnergies’ Anomaly Detection Initiatives (TADI), under the existing frameworks of the United States Environmental Protection Agency, the European Commission for Energy, and other international bodies.
This effort seeks to establish validated, representative, reproducible methods for the detection, quantification, and reporting of methane and other greenhouse gas emissions from oil and gas infrastructure, although variants of the protocol may be applicable to other sectors. This protocol evaluates the performance of solutions and methodologies designed to detect leaks (commonly called leak detection and repair (LDAR), leak detection and quantification (LDAQ), or next-generation emission monitors (NGEM) solutions), primarily those solutions that detect and quantify atmospheric emissions of methane and other light hydrocarbons.

Figure 1: Testable interface schematic with the two key interfaces that a solution will be evaluated against. For more information, see Definition of Testable and Controllable Interfaces for Next-Generation Leak Detection and Quantification Methods. Zimmerle & Emerson. May 2024.
Purpose:
This protocol tests integrated solutions which include sensors, deployment of those sensors, and any analytics and auxiliary data required for the system to function. The protocol does not evaluate the performance of components of the system, such as the sensors alone or the analytics alone.
Testing under the revised Controlled Test Protocol will better represent real world applications in the following ways:
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- Simulating how devices are used in operational settings by including baseline emissions and in mimicking failure conditions by equipment type.
- Sensor companies must deploy solutions in the same way they would be used at operational sites.
- Sensor companies must define and report detection thresholds.
This protocol covers a range of solutions and is structured to accept additional solution types in the future. However, most current methods can be grouped into two types: survey solutions and continuous monitoring solutions (or methods).
- Survey solutions are human-supervised solutions that make short-duration observations of components or entire facilities using mobile sensors, either handheld or mounted on some moving platform. While sensing is supervised by a human operator co-located with the sensing system, subsequent analytics often occur after the sensing operations are completed.
- Continuous monitoring solutions utilize sensors which have limited or no mobility, are installed for extended periods on a facility, and operate without on-site human supervision or intervention. While these solutions are colloquially known as continuous monitors, these solutions do not operate at all times, due to lock-out conditions, cycling, panning between different fields of view, etc.
Both solution types require analytics to translate sensed data into emission detection, emission rate quantification, and emission source location.

Figure 2: Changes in the ADED 2.0 Protocol add in operational emissions from individual pieces of equipment and make fugitive releases more complex.
Opportunities to Participate:
For Continuous Monitoring Solutions – the ADED 2.0 Combined Controlled Test Program is conducted annually, beginning each spring. The next CM ADED Test Program will begin in March 2026.
For Survey Solutions – the ADED 2.0 Combined Controlled Test Program is conducted at least annually. The 2025 survey window is tentatively scheduled for Fall 2025.
- To participate, complete the ADED Test Interest Form.
- Complete commitment form and testing agreements 2+ months prior to meet testing deadlines.
- Questions or need more information? Contact: [email protected]
ADED 1.0
The ADED 1.0 test program ended in 2024. Archived information regarding ADED 1.0 may be found at the Advancing Development of Emission Detection webpage.
Opportunities to Participate in ADED 2.0
Continuous Monitoring Solutions – ADED 2.0 is conducted annually, each spring. Next offering March 2026.
Survey Solutions – ADED 2.0 is conducted annually, tentatively planned for Fall 2025.
- To participate, complete the ADED Test Interest Form.
- Questions or need more information? Contact: [email protected]
ADED 2.0 Publications:
Controlled Test Protocol – 2025.
White Paper – Definition of Testable and Controllable Interfaces for Next-Generation Leak Detection and Quantification Methods. Zimmerle, Emerson. May 2024.
Publications for ADED 1.0 may be found HERE.
Collaborators
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TotalEnergies Anomaly Detection Initiatives (TADI)
- Members of the Protocol Development Committee
Funding Provided by:
- US Department of Energy – DE-FE0032276