During the process of anaerobic digestion, biogas is formed, which is a mixture of CO2 and methane. Currently, fossil CO2 is often used in horticulture because crops tend to grow better at higher CO2 concentrations.

The use of biological CO2 in horticulture represents an innovative approach to agricultural practices. The liquefied CO2 can be utilized to enhance the growth and productivity of plants, serving as a valuable resource in greenhouses. This closed-loop system not only reduces carbon emissions but also maximizes the efficient use of resources, promoting a circular economy.

Furthermore, the potential future use of biological CO2 in the production of synthetic fuels highlights the versatility of this renewable source. As technology advances, the ability to convert CO2 into synthetic fuels could significantly contribute to decarbonizing the transportation and industrial sectors.

Gr4SS produces 4.5 million cubic meters of bio-CO2 per year, equivalent to 8,820 tons annually. According to available data, Dutch horticulture consumes approximately 8.4 million tons of CO2 annually for greenhouse cultivation. The 8,820 tons of biological CO2 produced by the GR4SS facility, therefore, makes a significant contribution to meeting the CO2 demand of the sector.