The detection and reduction of methane emissions is a challenge for gas network operators, especially in light of the recent EU Methane Regulation, which sets standards for the monitoring, reporting, and repair of methane leaks. As one response to these regulatory requirements, Schleswig-Holstein Netz and Beagle Systems have initiated a joint pilot project that utilizes long-range drones equipped with laser sensors for methane detection across a test track of Schleswig-Holstein Netz's pipeline network. This collaboration aims to explore the viability of integrating drone-based technologies into Leak Detection and Repair (LDAR) programs. 

The paper will present the results of this pilot project, focusing on the use of long-range drones equipped with Beagle T1 laser sensors. These drones can fly at altitudes of 40 to 90 meters and monitor up to 100 kilometers of pipeline per day, also in difficult to access areas, significantly improving the coverage area and safety compared to traditional methods such as manual inspections or vehicle-based surveys. The functionality of the Beagle T1 sensor is explained, and its use is evaluated on the basis of the pilot project with regard to its ability to detect methane emissions as low as 1000 ppm on pipelines. This limit value fulfills the requirements of the EU Methane Regulation for underground pipelines, which means that the sensor and the technology can be used in its entirety for monitoring pipelines. 

The case study covers the legal framework, the technical design of the drone, the pilot project itself and the results achieved. It also looks at the data accuracy of the drones and the operational experience from Schleswig-Holstein Netz's perspective. 

The project aims to demonstrate the potential of drone technology for monitoring methane emissions and is intended to support pipeline operators in effectively fulfilling the legal requirements.