Microbreweries, known for their craft beers and unique brewing techniques, face significant challenges in balancing production costs and environmental sustainability. A recent study led by Veit Schagon from the School of Chemistry and Chemical Engineering at the University of Surrey proposes a groundbreaking solution that could transform the operational landscape for these small-scale breweries.
The research introduces a mixed-integer nonlinear programming (MINLP) decision-making tool designed specifically for microbreweries. This innovative tool helps owners assess the techno-economic feasibility of various energy efficiency retrofits, including renewable energy sources like solar and wind power, battery storage, and anaerobic digestion systems. Schagon emphasizes the importance of this approach, stating, “Microbreweries often struggle to identify which retrofits will yield the best results. Our tool provides a tailored solution that considers their unique configurations and capacities.”
The case study conducted in the UK revealed impressive results. By implementing a combination of a 10 m³ anaerobic digester, 30 solar panels with a 380 W output each, an 800 W wind turbine, and a 2.3 m³ heat storage tank, the microbrewery was able to cut annual operating costs by a staggering 62.9% and reduce carbon dioxide emissions by 77.1%. The financial outlook is equally compelling, with a payback period of just eight years for these investments.
This research not only highlights the potential for significant cost savings but also aligns with the growing demand for sustainable practices in the brewing industry. As consumers increasingly prioritize environmentally friendly products, microbreweries can leverage this tool to enhance their market appeal while contributing to global carbon reduction efforts.
The flexibility of the MINLP tool is particularly noteworthy. It can be adapted for any microbrewery, regardless of location or brewing recipe, allowing owners to customize their approach to energy efficiency. “This is not just a theoretical model; it’s a practical guide that can lead to more profitable and sustainable operations,” Schagon adds.
As the energy sector continues to evolve, the implications of this research extend beyond microbreweries. The methodologies employed in this study could inspire similar tools across various industries, promoting a broader shift towards energy efficiency and sustainability. The integration of renewable energy sources and advanced technologies into traditional sectors is a critical step in addressing climate change and fostering a more sustainable future.
This research is published in ‘Digital Chemical Engineering’ (translated from German as ‘Digitale Chemieingenieurwissenschaft’), marking a significant contribution to the intersection of energy efficiency and industrial practices. For more information, visit lead_author_affiliation.
