About Us

Who we are

A world leader in Renewable Natural Gas

Grissan is pioneering a low-carbon future through the rapid deployment of Renewable Natural Gas production by harnessing the science of our own anaerobic technologies developed over the last two decades.

Family owned with family values and proud roots established over 100 years ago in the Scotch Whisky industry; Grissan is pioneering a low-carbon future through the rapid deployment of renewable natural gas production by harnessing the science of our own anaerobic technologies developed over the last two decades.

We limit our barriers by investing, building, and operating our facilities, protecting our IP, never compromising on design, and exceeding industry standards. The Grissan Team is highly skilled and multi-disciplined with backgrounds in Engineering, Biochemistry, Microbiology, Compliance, Finance and People Development.

Grissan engineer on site Laboratory analysis at Grissan Grissan team member in the control room

With decades of operating experience and an exemplary reputation we produce renewable natural gas in a safe and sustainable way. Drawing on our Scottish industrial heritage and utilising our state-of-the-art technologies, we partner with distillers to process cereal based residues (from wheat, corn, barley and rye) into renewable natural gas.

Our renewable natural gas delivers flexibility to generate low carbon electricity, displace natural gas or other fossil fuels in both heating and transport and delivers decarbonisation. We also produce liquid and fibre organic soil conditioners to support sustainable regenerative local farming.

What we do

Clean, green energy from distillery residues

We make clean, green energy in the form of Renewable Natural Gas from distillery residues.

We offtake a broad range of wastes and residues from local distilleries and convert them into Renewable Natural Gas to fuel homes, businesses and heavy goods vehicles. Our Vitagrow™ products provide liquid and fibre soil conditioners for use in sustainable local farming and bio-CO₂ for use in industry.

Today, Grissan processes approximately 3 million tonnes of distillery wastes and residues each year producing over 1.5 TWh of renewable and sustainable energy. That’s enough to heat 200,000 homes and abates over 300,000 tonnes CO₂ from direct energy emissions.

Grissan facility

Health & Safety

Safety at the heart of everything we do

Our Vision

To create a proactive safety culture which ensures the safety and health of our entire community.

Our Aims

Our six aims provide a framework to deliver health & safety that supports our community.

Our Principles

Our guiding principles underpin the delivery and approach to health & safety across Grissan.

Grissan health and safety shield
Grissan health and safety principles

Work with a proven partner

Drawing on our Scottish industrial heritage and a decade of operating experience, we deliver renewable natural gas safely and sustainably.

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