September 3, 2026. Brimex Energy S.A. de C.V. announced that its renewable natural gas (RNG) facility in Lagos de Moreno is the first renewable thermal project in Mexico to be registered on the CleanCounts Registry (M-RETS), operated by CleanCounts, the nonprofit that runs North America’s largest clean energy registry. The announcement was made jointly at the Mexico Carbon Forum in Aguascalientes (September 2–3) and at the Renewable Energy Markets conference in Washington, D.C. (September 1–3), placing the news before Mexico’s environmental markets community and the North American clean energy buyers who transact on the registry at the same moment. The registration, completed after an independent third-party engineering review by EcoEngineers found no exceptions, approves Brimex to generate Renewable Thermal Certificates (RTCs), a class of Energy Attribute Certificate (EAC) issued for each dekatherm of verified renewable thermal energy the facility produces.
The Brimex facility converts organic waste from three industries that define the Altos de Jalisco region: dairy, swine production, and tequila. Whey and milk byproducts, swine manure, wastewater sludge, and vinasse from tequila distillation feed three anaerobic digesters on site. This includes material from food and beverage brands including tequila producers Teremana and Campo Azul as well as food brands Grupo Lala and Sigma Alimentos. The resulting biogas powers generators that sell electricity to the commercial grid, and a portion is upgraded into biomethane used as vehicle fuel. Brimex holds Mexico’s first federal permits for the production and, as of February 2026, the commercialization of biomethane. The project’s registry account is held through Cyan Energy S.A. de C.V., which serves as account holder and certificate marketer for the facility.
An EAC is the instrument that lets a buyer prove a clean energy claim. Each certificate carries a unique serial number and records the resource type, location, and production period of one unit of clean energy, creating an auditable chain of custody from generation through retirement. CleanCounts issued its two billionth certificate in 2025, its software issues more than 40% of all renewable energy certificates in North America, and it was the first registry on the continent to track renewable thermal fuels. Its architecture is designed to prevent double counting, the risk that two parties claim the same unit of clean energy.
For Mexico’s emerging biomethane market, registry-grade tracking changes what producers can offer. Certificates give corporate buyers and regulators verifiable documentation of Mexican renewable fuel, recorded on the same infrastructure that utilities and Fortune 500 companies across the United States and Canada already rely on for compliance and sustainability reporting.