
By-products & Waste
From reject potatoes to whisky residues, at Celtic Renewables we convert by-products & waste into bio-based chemicals.
Feedstock
Celtic Renewables converts by-products and waste into green chemicals, addressing two critical opportunities:
- Producing green chemicals that reduce the carbon footprint of everyday products by replacing fossil fuels in their production.
- Providing sustainable treatment solutions for industries with by-products and waste.

Key Feedstocks

Potatoes

Pot Ale
From whisky production.

Molasses

BIOTECHNOLOGY
Circular Economy
From feedstock to end-product, Celtic Renewables delivers a fully circular solution. A process that uses above the ground carbon from by-products and waste to produce green chemicals, with the potential to also produce hydrogen, food-grade CO2, and biogas.
Research & Innovation
Innovation lies at the heart of everything we do at Celtic Renewables. With our first commercial demonstrator plant already producing high-quality products, we are now focused on expanding and developing new feedstock options to support future growth.
The potential is enormous, available by-products and waste far exceeds what’s needed to meet the global demand for acetone & butanol, allowing us to envision a future where fossil fuel equivalents are completely displaced.

About Us
We’re leading the green chemical revolution
We’re helping to drive the transition to a Net Zero, Nature Positive World through defossilisation. A world where sustainable, biologically derived green chemicals, produced in harmony with planet earth replace our dependence on fossil-fuel equivalents.
