Society 2030: Spirit of Progress
Diageo's 10 year action plan to help create an inclusive and sustainable world, underpinning our growth as a business whilst creating a positive impact in our company, with our communities and for society.
Carbon heat challenge
Problem statement: Heat is a critical input to our brewing and distilling processes, with at least 80% of the total energy requirement associated with brewing and distilling being heat-related. There are both batch and continuous processes primarily utilising steam for the heat transfer medium. The processes require heat (steam) at a range 120oC-200oC and generates waste heat in the form of hot water/steam condensate at 30oC-90oC and at 150oC-160oC for flue gas. We have diverse global facilities both in industrialised zones and small rural locations.
Challenge: To significantly reduce the carbon footprint associated with Diageo’s industrial heat requirements through generation and/or reuse processes, while ensuring continuity of heat supply – 24 hours a day, 7 days a week – with no maintenance interruptions.
Potential solutions could include but are not limited to:
- Waste heat recovery & reuse (including heat pumps)
- Hydrogen heat production
- Solar thermal heat generation
- Thermal energy storage and distribution
- Low-carbon natural gas heat generation
- Control & Instrumentation of heat balancing/energy management software
- Geographically-specific solutions
