SkyClean Scale-up


Agriculture, shipping, aircraft, trucks and certain industrial processes are difficult sectors to decarbonise. For example, a significant proportion of agricultural CO2 emissions come from fiber in livestock manure that is spread in the fields and from plant residues that, when plowed and decompose, emit large amounts of CO2.


The SkyClean Scale-Up projekt focuses on maturing the SkyClean pyrolysis technology and constructing the first 20 MW SkyClean pyrolysis plant in Vrå. The plant will process 40,000 tons of biogas residual plant fibers yearly, producing 14,000 tons of biochar as well as demonstrating clean syngas production for advanced biofuels. Also, the project will document the stability of the biochar in the soil along with CO2e sequestration and environmental effects. Last but not least, the project will develop biochar value chains and investigate how to best handle, distribute and apply the biochar in the agricultural sector.


The SkyClean Scale-Up project facilitates a pyrolysis-based reduction of greenhouse gas emissions from the Danish agricultural sector of at least 2 million tons of CO2e per year in 2030 in accordance with the parlia-mentary agricultural agreement from October 2021. In addition, a reduction in Danish greenhouse gas emis-sions of at least 1.6 million tons of CO2e per year in 2030 through displacement of fossil fuels.


Problem owner

Agri Energy

Problem solvers

Stiesdal SkyClean

KK Wind Solutions

Aktive Energi Anlæg A/S


Vestjyllands Andel

SEGES Innovation

DTU Chemical and Biochemical Engineering 

DTU Construct

Roskilde University

Københavns Universitet – Plant and Environment 

Department of Environmental Science, Aarhus University

Department of Agroecology – Aarhus University

Department of Ecoscience

Food & Bio Cluster Denmark

Project video

Project timeline

PHASE 1: Conceptualisation
PHASE 2: Development and testing
PHASE 3: Demonstration and validation
PHASE 4: Commercialisation

Financed by


Start: August 2022

Slut: December 2025

Totalbudget: 200.582.061,00 kr.

Contact person

Christian Munk Jensen

Christian Munk Jensen
Project Manager
Tlf: +45 5055 2606