Finland is ambitiously aiming for growing biogas production and more efficient nutrient recycling. The biggest additional potential for biogas production is in agricultural biomass, including manures from livestock production and various plant biomasses. Manure is also the most important biomass for nutrient recycling. In North Savo, the most significant biomass for biogas production is in agriculture. In particular, manure from strong dairy herd production and secondary streams of plant production could enable significant biogas production and improve the use of nutrients locally and regionally. According to the final report of the Working Group on the National Biogas Programme set up by the TEM (28.1.2020), the main challenges for the development of the biogas sector are related to the low profitability of operations (1). Bottlenecks to profitability include high investment costs, the underdevelopment of the market for biogas (in particular transport and industrial use) and digestate or fertilising products processed therefrom, and thus a low price relative to the cost of production, as well as conflicts between the costs and returns of agricultural biomass utilisation. The profitability of a joint farm can be found in cooperation when the investment cost is shared between several operators. This project creates a technical economic and sustainable operating concept in North Savo, where biogas production and digestate utilisation are carried out in a decentralised manner on farms or in small farms or small biogas plants common to farms of less than 20.000 t/year, but the energy contained in biogas is used centrally either as compressed biogas (CBG) or as liquefied biogas (LBG). The scenarios to be carried out in the project are the starting point for the actual investment pilot of biogas plants in agricultural holdings 2022-2025. The project also tests and demonstrates manure-based solutions as substitutes for litter peat. At the same time, the profitability, self-sufficiency and environmental friendliness of farms will be improved. Previously, in Finland, a dry fraction of bovine slurry separation as bedding in a barn has been tested and introduced in a few farms. The hygiene, adequacy and usefulness of the dry fraction can be improved through processing and/or various additives. The effect of the biogas process on the hygiene and usefulness of the dry fraction shall be tested by performing a drying test of the digestate with a separable dry fraction. As additives to the dry fraction of slurry and digestate, e.g. reed chips, fibre extrusions, field spreadable ash and biocarbon are tested. In addition, willow will be tested as a permanence, which could be grown, for example, in out-of-use peat fields.