The “Biogas Info Days” in Ulm are an annual trade fair that has established itself as a central meeting point for experts and those interested in the field of biogas production and technology. Biogas, a form of renewable energy, is produced through the anaerobic decomposition of organic materials such as plant waste, manure, sewage sludge, or organic waste in biogas plants. This decomposition is carried out by microorganisms in the absence of oxygen. The resulting gas mixture mainly consists of methane (CH4) and carbon dioxide (CO2), supplemented by smaller quantities of other gases such as hydrogen (H2) and hydrogen sulfide (H2S). Biogas is recognized as a renewable energy source since the CO2 emissions released during its combustion approximately equal the amounts absorbed by the plants during their growth, making its use largely CO2-neutral. Since its establishment in 2016 by the organizer renergie Allgäu e.V., the event has evolved into an important platform for knowledge exchange, networking, and the presentation of the latest developments and innovations in the biogas sector. The fair is characterized by a wide range of exhibitors and renowned speakers from research, technology, and practice. These experts are available to answer professional visitors' questions and provide deep insights into current developments in areas such as plant engineering, gas and digestate processing, as well as fermenter biology. The advisors from exhibiting companies comprehensively inform about advancements and innovations in these fields. A distinctive feature of the Biogas Info Days is the extensive congress program, offering informative lectures from various areas such as research, technology, crop cultivation, direct marketing, and legal issues related to the Renewable Energy Act (EEG). These presentations offer valuable insights and leave virtually no questions unanswered. Planning and engineering offices represented at the fair provide information about technical optimization measures and current funding programs, especially regarding heat networks. This information is particularly valuable for professional visitors involved in the planning, development, and implementation of biogas plants. The fair takes place at Messe Ulm, a modern and easily accessible location, offering ideal conditions for exhibitors and visitors. Messe Ulm is known for its excellent infrastructure and its capacity to accommodate a large number of exhibitors and visitors. Overall, the Biogas Info Days offer a unique opportunity to learn about products and services in the biogas sector, to connect with industry experts, and to gain insights into the latest trends and developments. They are an indispensable event for everyone active in the biogas sector or interested in renewable energies. The Biogas Info Days will take place on 2 days from Wednesday, 28. January to Thursday, 29. January 2026 in Ulm.