News

AAT Biogas together with its long-standing partner Biogenic ApS Successfully Delivers and Installs Advanced Emergency Biogas Flare (FLR 1500) in Norway Hustadvika Municipality - AAT Biogas, a leading global provider of innovative biogas technology, together with it’s Denmark partner Biogenic ApS, has successfully completed the shipment, installation, and commissioning of a high-performance Emergency Biogas Flare at a biogas plant in Norway. The newly installed emergency flare is designed to ensure maximum operational safety for the Hustadvika biogas plant, allowing for the controlled and safe combustion of excess biogas during maintenance or emergency grid shutdowns. To guarantee uninterrupted performance during freezing Norwegian winters, the unit is equipped with advanced Gasflare trace heating and insulation . This specialized system prevents the freezing of critical components, including the motor, solenoid valves, and the condensate pipe, ensuring 100% reliability year-round. Technical Specifications: FLR 1500Built with premium-grade materials and cutting-edge engineering, the system features the following technical parameters: Type: FLR 1500 Medium: Biogas Throughput Flow Rate: 1,500 m³/h Combustion Output: 9,750 kW Overall Height: 7.9 m Gas Pressure (Min / Max): 25 – 150 mbar Material (Gas-Exposed Parts): 1.440x (SS316 Stainless Steel) for superior corrosion resistance. Material (Combustion Chamber): 1.4301 (SS304 Stainless Steel) Insulation: High-grade ceramic fiber lining in the combustion chamber, durable up to 1,400 °C Engineered for Durability and Safety Biogas plants require components that can withstand both internal corrosive gases and external weather elements. By utilizing high-alloy SS316 stainless steel for all parts exposed to gas, AAT ensures maximum longevity and resistance to hydrogen sulfide (H2S) degradation. Furthermore, the ceramic fiber insulation rated up to 1,400 °C ensures optimal thermal containment and high-efficiency combustion . With this successful installation in Norway, AAT Biogas continues to expand its footprint in Scandinavia , providing renewable energy projects with the robust infrastructure needed for a green transition. For more information about our biogas flares, gas storage systems, or full-scale plant engineering, please contact the AAT Biogas sales team .

AAT Biogas, largest biogas plant Baltics, Saaremaa biogas project, biomethane Estonia, agricultural waste to energy, digestate fertilizer, raw biogas production

We are at IFAT 2026!

The biogas plant in Estonia designed by AAT is on its final construction stage and will start producing energy in the summer of 2026. Location: Tahula village, Saaremaa municipality, Estonia. The biogas plant is the biggest biogas plant in the Baltics so far, it has two lines with 1 Mix tank, 3 Digesters and 1 Post Digester on each line. The plant is designed to process almost 800 tons per day of locally collected liquid and solid agricultural waste, namely cow and pig manure, feed rests, grass, flotation sludge, whey, etc. The produced biogas will be upgraded to biomethane. Technical data of the plant: - 6 digesters with 3,880 m³ volume each (Ø 26m x 8 m) - Biogas production: 1460 Nm³/h (or 880 Nm³/h biomethane equivalent) - Fertilizer production: 756 t/d

Construction of the biogas plant Olsztyn is proceeding and can be seen in the following photos. After finishing of the all tender procedures Olsztyn municipality together with nominated technology provider AAT started to build a biogas plant in November 2024. In this biogas plant 115 t/d of organic waste (mainly the separately collected food/kitchen) waste will arrive to the site and further will be prepared and digested. From the produced biogas the electricity will be generated with a power of up to 1MW. To provide more flexibility to the future biogas plant was decided to design and build 2 independent lines with digester, post digester and final storage on each line. The biogas plant will be equipped with a most innovative and efficient equipment for the waste treatment and fermentation from the well-known European manufactures. Technical data of the plant: - 2 digesters with 4,000 m³ volume each (Ø 22m x 6 m) - Biogas production: 408 Nm³/h - Capacity generation electrical energy: 1MW - Energy generated: 8760 MWh/a - Capacity generation thermal energy: 1MW - Thermal energy generated: 8760 MWh/a - Fertilizer production: 105t/d

The Al Warsan waste water treatment plant has been upgraded by AAT with two modern double membrane gas storages and a specially designed control cabinet in a container so that the system can operate with different input pressures and works in extreme weather conditions. Project data: 2x gas storages with 4000m³ volume each Gas flow 2545 m³/h Operating pressure 13/20 mbar AAT scope of supply: Implementation planning Double membrane (Type V) gas storages with all needed connections Control room in protection container Support air and ventilation blowers (ATEX Zone I) Gas sensors, gas analysis Gas valves and axial compensators

The Zapresic wastewater treatment plant was reconstructed and upgraded. AAT delivered design, supply of equipment, start-up and operation support. Project data: 2x digesters with 1.600m³ volume each 1x gas storage 940m³ AAT scope of supply: vertical agitators digester equipment gas storage gravel filter, activated carbon filters, condensate trap gas sensors, gas analysis gas blower, emergency flare

New digestate storage tanks will be built for the biogas plant Recycling Energie AG in Nesselnbach, Switzerland. Four tanks with each 6200 m³ are needed for the storage of digestate during the winter. Digestate as high quality fertilizer is spread on nearby fields during the rest of the year. AAT is responsible for engineering, equipment and start-up of the plant. Technical data of the plant: - 90,000 t/a digestate - 4 CSTR final storage tanks with each 6,200 m³ volume - Biogas upgrading with CNG-filling station and combined CO 2 -liquefaction - Start-up scheduled: end of 2025

Soon the year is coming to an end and we want to take this opportunity to thank you for your confidence in us and for the convenient co-operation. The team of AAT wishes you and your families some peaceful and joyous holidays and a good start into the new year 2025! This year we support the charity „Netz für Kinder (net for children)“.