How distilleries can decarbonise heat: practical approaches for low‑carbon steam and thermal energy

For more than a decade, BIP.Verco has supported some of the world’s leading food and beverage manufacturers in developing robust, actionable decarbonisation plans. Our combined expertise in beverage manufacturing, energy and water optimisation and carbon-reduction technologies enables us to help distilleries achieve ambitious carbon reduction.

This article is the third in our series on the three‑stage approach to distillery decarbonisation:

Reduce energy input
Optimise heat recovery and integration
Decarbonise remaining fuel/ heat

Here, we focus on Stage 3: practical pathways to decarbonise heat in distilleries with a particular focus on the challenge of delivering low-carbon steam for direct injection.

Why heat decarbonisation is challenging for distilleries

Distilleries rely heavily on direct injection steam to run their core processes, including:

Distillation column operation
Cooking for grain‑based spirits
Heating pot stills

Because these processes require high‑grade heat, they can be harder to transition away from fossil fuels. The right solution often depends on your process configuration, temperature requirements, waste heat availability, and site‑specific constraints.

Below are the key areas every distillery should evaluate when planning to decarbonise heat.

1. Map heat demand by temperature grade

A detailed heat‑demand map helps you:

Identify where high‑grade steam is genuinely required
Highlight opportunities to use lower‑temperature or waste heat
Pinpoint processes where temperature set points can be lowered
Explore the use of enzymes to reduce temperature requirements in grain cooking

Understanding your temperature profile is the foundation for selecting the most efficient and lowest‑carbon heat technologies.

Download the guide on heat pumps

2. Explore anaerobic digestion (AD) and biogas opportunities

If your distillery produces significant organic waste or by‑products, Anaerobic Digestion (AD) can be a compelling pathway to generate biogas for high‑temperature heat.

Benefits:

On‑site biogas can displace fossil fuels for steam generation
Particularly suited to hard to decarbonise heat demands

Challenges:

AD plants require substantial space—often twice the footprint of the distillery to meet heat demand
Feedstock availability must be consistent

Download the guide on low carbon fuels

3. Assess location‑specific renewable heat options

Your site’s climate, solar exposure, and geology play a major role in renewable heat feasibility. Depending on location, you may consider:

Solar thermal for medium‑temperature hot water (MTHW)
Solar PV combined with thermal storage
Geothermal or ground‑source heat options

In warmer climates, solar‑driven systems can make a meaningful contribution to process heat and reduce reliance on fossil fuels.

Download the guide on renewable thermal

4. Electrify heat where space is limited

When space constraints rule out biomass, biogas or solar infrastructure, electrification of heat can be an effective option. Technologies include:

Electric boilers (E‑boilers)
High‑temperature heat pumps
Hybrid electrification combined with waste heat recovery

Key considerations:

Electricity costs can impact payback times
Integrating heat pumps with waste heat recovery significantly improves efficiency
Opportunities to reshape steam demand during peak and off‑peak periods

Download the guide on electrification of heat

Moving forward with distillery heat decarbonisation

Every distillery has a unique heat profile, infrastructure footprint and strategic ambition. But by focusing on:

Accurate heat mapping
Smart integration of renewable and recovered heat
Pragmatic evaluation of low‑carbon fuel options
Strategic electrification

…distilleries can make high‑impact progress toward net‑zero while reducing operational risk and energy costs.

If you'd like help assessing the decarbonisation options for your distillery, BIP.Verco’s technical experts are here to support you.