Bunnahabhain Whisky
Leading the Way in Net Zero Distillation with Renewable Energy Innovation
Key Facts
5,500
tonnes of CO₂ saved annually
95%
reduction in emissions compared to oil-based systems
5,500kW
biomass energy system
Net Zero
distillation 15 years ahead of Scotch Whisky Association target
- Industrial Decarbonisation
Achieving Net Zero in the Scotch Whisky Industry
Bunnahabhain Distillery has become the first on Islay to achieve net zero whisky distillation almost two decades ahead of the Scotch Whisky Association’s 2040 target. This was achieved through the installation of an advanced biomass energy centre owned and operated by AMP. The system delivers one of the most significant carbon savings in the industry, providing a blueprint for other distilleries looking to overcome the considerable challenge of decarbonising heat-intensive processes.
The Vision
Decarbonising whisky production is technically complex, as distilleries require large volumes of consistent, high-temperature heat. The objective for Bunnahabhain was to replace fossil-fuel heat entirely with a renewable alternative without compromising production quality or efficiency. AMP’s solution aimed to deliver deep emissions cuts, enable long-term operational resilience, and set a benchmark for sustainable whisky-making across Scotland.
The Solution
The biomass energy centre uses a combination of draff, the spent malt from the distillation process , and woody biomass to fuel a triple-combustion-chamber boiler with integrated NOx reduction technology. This advanced setup is among the cleanest biomass systems in the whisky sector. This is one of the hardest industrial processes to decarbonise, making these savings particularly significant for the whisky sector. Compared with oil-fired boilers, it delivers a 95% reduction in carbon emissions, saving around 5,500 tonnes of CO₂ each year, the equivalent of removing every road vehicle from Islay and Jura.
To further enhance sustainability, a felling licence has been secured to harvest up to 4,000 tonnes of timber from Islay. Felling will begin after the nesting season in September, with logs seasoning until spring 2026 before being chipped and used in the plant. While local timber will play a growing role, the primary driver and achievement remains the dramatic reduction in emissions.
The Results
The energy centre provides annual carbon savings of approximately 5,500 tonnes CO₂ and has transformed Bunnahabhain into one of the most sustainable whisky distilleries in the country. This substantial carbon reduction ensures the distillery can maintain production at scale while meeting net zero heat targets well ahead of schedule. This achievement demonstrates that even the most heat-dependent industrial processes can transition to low-carbon energy without sacrificing performance.
A Blueprint for Sustainable Whisky Production
Bunnahabhain’s net zero transformation demonstrates that distilleries can achieve significant carbon reductions in one of the hardest sectors to decarbonise. By integrating advanced biomass technology with process by-products, the project delivers industrial-scale renewable heat that is both practical and replicable. It stands as proof that climate targets in energy-intensive industries can be met ahead of schedule, without compromise, and provides a model for decarbonising whisky production.
“This is an exciting new chapter for Bunnahabhain distillery and sustainable whisky production on Islay. The biomass energy centre makes Bunnahabhain Islay’s first distillery with a Net Zero distillation process, and we’re extremely proud, not only of the scale of the project but the entirely locally sourced fuelling system, which supports the island’s forests and economy.”
Julian Patton, International Supply Chain Director at Distell International, owner of Bunnahabhain Distillery
Awards
Finalist
Clean Energy Scheme
Winner
Project Category
