UNITIL Corporation has announced the deployment of a new Advanced Mobile Leak Detection (AMLD) system across its natural gas service territories in New England. The system, installed on a specially equipped vehicle, is designed to efficiently identify and measure fugitive methane emissions from the company's gas distribution network. After piloting the program in Massachusetts in 2023, UNITIL expanded AMLD operations to Maine and New Hampshire, surveying the entire network during nighttime hours from early spring to fall. The technology, supplied by Picarro, enables real-time detection and measurement of gas leaks. According to UNITIL, approximately 36% of total emissions were traced to 11% of leaks, allowing for targeted repairs and emission reductions. Additional details are available in the company's 2025 Corporate Sustainability & Responsibility Report.