Exploring Sustainable Refrigeration Choices with Dr. Rob Lamb at IRN 2026 Conference

Exploring Sustainable Refrigeration Choices with Dr. Rob Lamb at IRN 2026

As the industrial refrigeration sector evolves, the pressure for innovation is intensifying due to environmental regulations, skyrocketing energy costs, and a collective shift away from high-GWP (Global Warming Potential) refrigerants. At the upcoming 2026 Industrial Refrigeration Network (IRN) Conference, Dr. Rob Lamb, Group Sales and Marketing Director at Star Refrigeration, will delve into these pressing issues in his session titled "Refrigeration Choices Beyond the CO2 Hype."

Scheduled for June 10-11, 2026, at the SCHAUFLER Academy in Rottenburg-Ergenzingen, Germany, this conference serves as a key gathering for professionals in the refrigeration industry to engage in critical discussions and access cutting-edge knowledge. Dr. Lamb's presentation will build on the insights shared during Cold Chain Live 2025, offering updated models and operational data that compare ammonia and CO2 refrigeration systems across cold storage and freezing applications.

In his analysis, Dr. Lamb emphasizes the importance of two key refrigerants that have stood the test of time: ammonia and CO2. Each offers unique advantages tailored to different applications. Ammonia, known for its high efficiency and long system lifespan, is especially advantageous in large-scale settings. Meanwhile, CO2 systems provide compact and non-flammable alternatives that are often financially appealing for smaller capacities and lower temperature needs.

However, with non-domestic electricity prices having surged over 270% since 2015, the energy performance of these systems has become a crucial consideration in plant selection. In Dr. Lamb's study, a model of a 35,000 m³ cold storage facility operating at -22°C is examined against a design ambient temperature of 35°C. His findings reveal a significant disparity in annual energy consumption: approximately 910,000 kWh for a low-charge ammonia system, in contrast to around 1.25 million kWh for a transcritical CO2 system operating under the same conditions. At an electricity rate of 25 pence per kWh, this results in a staggering annual operating cost difference of about £86,000.

Such discrepancies can significantly impact the total cost of ownership over time. Dr. Lamb highlights that, despite CO2 systems sometimes having a lower initial capital expense, their lifecycle performance can sway financial viability, particularly in the context of fluctuating energy prices. He asserts, "The conversation should not center around which refrigerant is superior, but rather how stakeholders can balance various factors, including capital costs, operational efficiency, compliance, and long-term system resilience, tailored to their specific needs."

The session will also highlight how modern packaged low-charge ammonia systems are addressing historical concerns surrounding complexity and safety by minimizing refrigerant charges and simplifying installation processes.

The Industrial Refrigeration Network Conference, hosted by BITZER at the SCHAUFLER Academy, promises to be a vital platform for manufacturers, contractors, and end-users. Star Refrigeration's active participation underscores its dedication to evidence-driven engineering and fostering informed technical discussions in the industry.

To learn more about the IRN Conference and to register for this important event, interested participants can visit IRN Conference Registration. Don't miss this opportunity to gain valuable insights from industry leaders like Dr. Rob Lamb and contribute to the conversation surrounding sustainable refrigeration solutions.