Grønn Vekst awarded an important biosolids handling contract

Asker, 16 February 2024, 16:09 CET

Grønn Vekst, part of Cambi’s Solutions segment, has been awarded one of Norway’s largest contracts for handling biosolids for Vestfjorden Avløpsselskap (Veas). Following standard Norwegian public procurement procedures, the contract is expected to be signed after a notice period expiring on 27 February 2024 (Norwegian ‘karenstid’).

The new contract has an estimated value of NOK 15-20 million per year. Its firm duration is 2 years, with two extension options of one year for a total duration of up to 4 years. The estimated contract value, including options, is up to NOK 80 million.

In the tender, Grønn Vekst outcompeted four other suppliers, receiving maximum scores for experience, capacity, preparedness, and environmental impact. “Winning the largest biosolids tender in the Oslo area is a significant achievement for Grønn Vekst. We look forward to a good collaboration with Veas in the coming years”, said Bernd Anders Keller, CEO Grønn Vekst.

Veas is Norway’s largest wastewater treatment plant, serving more than 800,000 people equivalent from larger parts of Oslo, Asker and Bærum. Cambi won in 2023 a contract to deliver a thermal hydrolysis process (THP) system to Veas, with operations scheduled to start in 2026. The synergy between Cambi’s process and Grønn Vekst’s experience with biosolids-based soil products will strengthen Veas' role in the local circular economy, contributing to a healthier Oslo fjord.

The start date for Grønn Vekst’s contract is set for 1 June 2024.

For more information, please contact:

Note on contract value






NOK million

15-50 50-100 100-200 >200

Contract value



About Cambi:

Cambi is a global biogas technology and solutions supplier for wastewater treatment plants and anaerobic digestion facilities. Since 1992, Cambi has retained market leadership through continuous innovation and a robust portfolio of proven and patented technologies. With strong project delivery and customer support capabilities, the company has delivered many well-performing installations in 27 countries on six continents.

Cambi’s thermal hydrolysis process increases renewable energy output, reduces operational costs, and minimises greenhouse gas emissions. It is suitable for all biosolids outlets, including land application and thermal processes such as drying, pyrolysis, and incineration. Thermal hydrolysis is compatible with all sludge and waste treatment regulations and easy to integrate at new and existing anaerobic digestion sites.

Cambi is listed on Euronext Growth Oslo, a multilateral trading facility in Euronext, Europe’s largest stock exchange platform. Find out more at


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