Stop Chiller Failures in Biogas and RNG Facilities June 20, 2026 Engineered to Withstand H2S. Proven in the Field. Biogas and renewable natural gas facilities operate in some of the toughest environments for industrial cooling equipment. Moisture, process demands, continuous operation, and corrosive gases can all put serious stress on a chiller system. One of the most damaging threats is hydrogen sulfide, commonly known as H2S. When H2S is present, standard chillers often are not built to last. Over time, corrosive exposure can attack coils, electrical components, and other critical parts of the cooling system. What starts as minor wear can quickly turn into refrigerant leaks, equipment failure, unplanned downtime, and costly repairs. For facilities that rely on steady process cooling, that is more than a maintenance issue. It can affect production, uptime, and long-term operating costs. The Hidden Cost of H2S Exposure H2S-related damage is often difficult to see until a failure has already occurred. A system may appear to be running normally while corrosion is slowly weakening key components behind the scenes. Common problems include: Coil perforation and refrigerant leaks Corrosion of electrical components Repeated service calls and repairs Unplanned downtime Lost production time Higher lifecycle costs In many cases, replacing parts or continuing to repair the same system only treats the symptoms. If the chiller was not designed for a biogas environment, the same problems are likely to return. Expert Insight “Biogas environments introduce corrosive conditions that standard cooling systems simply aren’t designed to handle. You need equipment engineered specifically for H2S exposure—otherwise failure isn’t a matter of if, but when.” — Paul Johnson, Director of R&D, G&D Chillers, an Ingersoll Rand business How One RNG Facility Solved the Problem Customer Spotlight: Novilla RNG Novilla RNG was experiencing corrosion issues in its cooling system and needed a more reliable long-term solution. After evaluating alternatives, the facility chose G&D Chillers’ H2S-resistant systems, which are designed specifically for biogas and RNG applications. After installation, the results were clear: Smooth, straightforward installation Remote-supported commissioning Zero coil degradation No electrical corrosion Reliable, continuous operation The system performed so well that Novilla RNG has standardized on G&D Chillers for future builds. Proven in Real-World Biogas Operations ESI Solutions — Selma, Alabama At an RNG waste processing facility in Selma, Alabama, a GD-200T-6 chiller is delivering stable process cooling in a demanding operating environment. This installation was built for continuous operation where uptime is critical. For biogas and RNG facilities, reliable cooling is not optional. It is part of keeping the process running efficiently and consistently. Project Snapshot: Location: Selma, Alabama Application: RNG waste processing facility Equipment: GD-200T-6 Chiller Purpose: Continuous process cooling in a demanding environment Selma, Alabama GD-200T-6 chiller installation Why Biogas Facilities Choose G&D Chillers Purpose-Built for Harsh Environments G&D Chillers’ biogas solutions are engineered with the demands of RNG and biogas operations in mind. Instead of using a standard system in a corrosive environment, facilities can choose equipment designed to handle the conditions from the start. H2S-Resistant Design Critical components are protected against corrosion and early failure caused by H2S exposure. Industrial Reliability Systems are designed for continuous operation in mission-critical environments where downtime can be expensive. Stable Process Cooling Consistent temperature control helps support efficient production and reliable facility operation. Reduced Lifecycle Costs Fewer failures, fewer repairs, and longer equipment life can help reduce the total cost of ownership over time. Don’t Keep Replacing Equipment. Fix the Root Problem. If your current cooling system is not built for biogas conditions, corrosion problems are likely to continue. Repeated repairs may keep the system running temporarily, but they do not solve the underlying issue. The right chiller system addresses the root cause by using equipment designed for the environment it operates in. For biogas and RNG facilities, that means cooling equipment engineered to withstand H2S exposure, support reliable operation, and reduce the risk of unexpected failure. Talk to a Biogas Cooling Expert Whether you are designing a new facility or replacing underperforming equipment, G&D Chillers can help you specify the right solution for your application. CTA PLACEHOLDER: Contact form or embedded form section Talk to an Engineer Request a Custom Quote Committed to Cold Since 1993 G&D Chillers has been trusted by industrial operators for reliable, purpose-built cooling solutions for more than three decades. Final chiller installation image