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Ventilation consumes 23% of brewery energy
Carlsberg Group established measurable energy optimisation targets to reduce CO2 emissions and operational costs. With ventilation representing 23% of total energy consumption at their Fredericia brewery, systematic fan replacement became a priority specification project.
The upgrade addressed aging 1970s equipment operating at constant full capacity in humid bottling halls. These legacy systems ran continuously regardless of actual demand, creating unnecessary energy consumption throughout production cycles. ZerAx® fans provide a technical solution for exhausting moist air while injecting dry, warm air, with measurable efficiency improvements.
Financial analysis shows CO2 reduction benefits contribute 0.04 GBP per saved kWh as carbon credit, supporting the business case for equipment replacement. This dual benefit of operational savings and environmental compliance strengthens the investment rationale for facility managers evaluating ventilation system upgrades.
Verified energy savings
Annual energy savings achieved
Energy cost reduction verified
Annual savings per system
Return on investment period
Independent verification confirms savings
Energy consultant Bjarne Pedersen confirmed achievement of specified performance targets before final ventilation system adjustments. "The fans deliver the projected 30% cost reduction. Additional savings result from improved control system integration. Measurement verification using tong test ammeters confirms expected performance specifications."
The ZerAx® calculation methodology incorporates frequency control capabilities, enabling total system savings exceeding individual fan specifications. This comprehensive approach includes variable speed operation and intelligent control integration, so the total energy reduction surpasses static fan efficiency improvements alone.
Documented energy consumption analysis provides verified data across multiple measurement points. The baseline electricity consumption from the legacy system totalled 890,400 kWh annually, whilst calculated consumption with ZerAx® fans in the existing system infrastructure showed 451,528 kWh per year. This is a documented annual savings of 438,872 kWh from the fan specification alone, supported by independent energy savings certification issued by the contracted ventilation firm.
The verification process employed professional measurement equipment to validate electrical consumption before and after installation. Since measurement accuracy determines the reliability of savings projections, the independent certification provides crucial third-party validation for financial analysis and investment decisions.
ZerAx® technology delivers acoustic performance
Beyond energy specifications, the fans deliver superior acoustic performance in high-noise industrial environments. Despite challenging bottling hall conditions where background noise masks equipment operation, the improved air movement to noise ratio demonstrates engineering optimisation.
Technical specifications ensure maximum airflow delivery with minimal acoustic impact, meeting industrial facility requirements for performance and work environment standards. The combination of energy efficiency and reduced noise levels creates measurable improvements in both operational costs and working conditions for production staff.
