Grissan Renewable Energy is the world’s largest producer of sustainable Renewable Natural Gas (RNG) from distiller’s residues.
Find out moreWho we are
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, we partner with distillers to process cereal-based residues into renewable natural gas — delivering low-carbon energy, transport fuel and organic soil conditioners that support sustainable, regenerative local farming.
About Grissan
Today, Grissan processes approximately 3 million tonnes of distillery wastes and residues each year, producing over 1.5 TWh of renewable and sustainable energy — enough to heat 200,000 homes and abate over 300,000 tonnes of CO₂ from direct energy emissions.
See our processClean, grid-quality gas to power local homes, businesses and heavy goods vehicles.
Liquid and fibre organic soil conditioners that support sustainable, regenerative local farming.
An ULCF that cuts CO₂ emissions by more than 95% with no harmful particulates.
Drawing on our Scottish industrial heritage and state-of-the-art technologies, we finance, design, build and operate our own facilities — never compromising on design and always exceeding industry standards.
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