A recent symposium convened by Manfred Dannenfeld of Landberatung brought together 25 participants from member farms alongside local authorities stakeholders, in collaboration with the Interreg project BIOZE, represented by Michael Kralemann and Dr. Ernst Kürsten.
The focal point of discussions centered on the impending conclusion of the EEG subsidy for electricity generation, which has sustained biogas plants for the past two decades. As the sector confronts the challenge of adapting to a new tendering model, concerns over the economic viability of continued operations loom large. This is especially true for plants with surplus electricity facing market prices insufficient for sustained profitability, particularly when waste heat cannot be effectively harnessed or marketed.
Simultaneously, municipalities are under pressure to comply with stringent energy and climate protection laws, with the Federal Heat Planning Act and Lower Saxony Climate Protection Act demanding decisive action. Medium-sized centers such as Munster, Soltau, and Walsrode are mandated to develop municipal heat plans by December 31, 2026, while smaller municipalities must follow suit by June 30, 2028.
Dr. Theresa Weinsziehr provided insights into the weighty responsibilities municipalities now shoulder under these legislative mandates. The goal of achieving 30% renewable energy utilization in existing heating networks by 2030, escalating to 100% by 2040 for Lower Saxony's greenhouse gas neutrality, poses significant challenges.
For farmers operating biogas plants, the summit offered a platform to evaluate their role within this evolving landscape. Dr. Weinsziehr emphasized the imperative for data-driven analyses encompassing heat demand, renewable energy potentials, and existing infrastructural landscapes. Michael Kralemann then delved into potential pathways for raw biogas and biomethane utilization. The discussion encompassed options ranging from renewable-fueled heat networks to the sale of biomethane to end-users or for incorporation into the transport sector. Viability considerations, including substrate availability, sustainability, and planning regulations, were highlighted.
Looking ahead, a follow-up summit will delve deeper into these critical topics, fostering direct connections between local authorities and biogas plant operators. This collaborative approach seeks to navigate the transition challenges towards sustainable energy solutions. The symposium marked a significant step towards addressing the pragmatic realities facing biogas plants and municipalities, as they navigate the evolving landscape of renewable energy production and distribution.