Small Municipality, Big Ambitions: How Mühlen Eichsen is Pioneering its Energy Transition

In the heart of Mecklenburg-Western Pomerania, between the historic city of Schwerin and the coastal town of Grevesmühlen, lies Mühlen Eichsen. With a population of just under 1,000 residents, this modest municipality is proving that a community does not need to be a metropolis to lead the charge in the German Energiewende (energy transition). By strategically leveraging wind energy revenue, integrating agricultural biogas into a local heating network, and modernizing municipal infrastructure, Mühlen Eichsen has been named "Energy Municipality of the Month" for September 2026 by the Renewable Energy Agency (AEE).

The Core Facts: A Mosaic of Renewable Projects

Unlike larger cities that often focus on singular, massive infrastructure projects, Mühlen Eichsen has adopted a decentralized, pragmatic approach. The municipality, comprising six distinct districts, is piecing together an energy puzzle that addresses both power generation and thermal demand.

The strategy relies on three pillars:

1. Financial Participation: Capturing the economic value of regional wind farms to fund local public works.
2. Thermal Sovereignty: Developing a district heating network powered by an existing agricultural biogas plant to supply public buildings and residential zones.
3. Infrastructure Modernization: Retrofitting and constructing new municipal buildings with integrated photovoltaics (PV) and heat pump technology.

Chronology: From Static Wind to Dynamic Energy Planning

The path to this energy model has been a measured, evolutionary process:

• 2012: The biogas plant in the district of Webelsfelde commences operation, providing a 400 kW electrical capacity. While initially focused on electricity feed-in, it lays the groundwork for future thermal utilization.
• 2025: The municipality marks a milestone with the opening of a new, energy-efficient municipal daycare center (Hort), equipped with rooftop PV panels and air-water heat pumps.
• January 2026: Mühlen Eichsen, in cooperation with the neighboring municipality of Veelböken and project developer wpd, signs a groundbreaking agreement under Section 6 of the Renewable Energy Sources Act (EEG).
• Early 2026: wpd announces a second construction phase for the Goddin wind park, signaling continued expansion.
• September 2026: Mühlen Eichsen receives the "Energy Municipality of the Month" award for its holistic, albeit incremental, approach to local energy self-sufficiency.
• 2028 (Target Date): Completion of the planned district heating network connecting the school, sports hall, and parts of the residential core.

Supporting Data and Technical Realities

The economic engine of this transition is the Goddin wind park. The site currently hosts four wind turbines, including a high-performance Vestas V162 with a capacity of 5.6 MW, a rotor diameter of 162 meters, and a hub height of 169 meters. This single turbine is expected to generate over 20 million kWh annually.

The Power of Section 6 EEG

Under Section 6 of the German Renewable Energy Sources Act (EEG), operators can pay municipalities within a 2.5-kilometer radius of a turbine up to 0.2 cents per kilowatt-hour of electricity generated. For Mühlen Eichsen, this translates to roughly €26,800 annually from a single turbine. With a 20-year contract in place, the community stands to gain over half a million euros—a transformative sum for a village of 943 people.

Thermal Potential

The Webelsfelde biogas plant serves as the thermal anchor. By utilizing the waste heat from the plant’s block heat and power (CHP) unit, the municipality aims to reduce its reliance on fossil fuel heating systems. The technical challenge, however, remains the distribution infrastructure. Unlike new-build developments designed with heat networks in mind, retrofitting a village requires meticulous mapping of heat demand versus supply, ensuring that the network remains economically viable over decades.

Official Responses and Strategic Vision

Mayor Andreas Zerbe views the transition as both a necessity and an opportunity. "Fundamentally, one cannot avoid this topic. We are trying to leverage the possibilities that arise for our community," says Zerbe.

The strategy is not about achieving 100% autarky, which is often technically and financially unreachable for small municipalities, but rather about "smart integration." By focusing on public buildings—like the new daycare—the municipality leads by example. Even in buildings with lower usage profiles, such as the fire station or the local funeral hall, the town is exploring alternatives like infrared heating, provided the energy source remains sustainable.

However, the administration remains grounded in reality. Mayor Zerbe notes that while the wind revenue is secured, the success of the heating network by 2028 depends on three critical factors:

1. Technical Design: Developing a robust piping and storage infrastructure.
2. Consumer Commitment: Ensuring sufficient uptake among residents to make the network economically efficient.
3. Long-term Supply: Addressing the longevity of the biogas facility. Many of the 10,000+ biogas plants in Germany are reaching the end of their initial subsidy period, necessitating a "post-EEG" business model that can support local heat supply.

Implications for Rural Germany

The case of Mühlen Eichsen carries profound implications for rural development across Germany.

1. The Value of Localized Value Creation

The "Goddin model" demonstrates that the energy transition does not have to be a source of local friction. When citizens and municipal councils see a direct link between wind turbines and the renovation of their local school or sports hall, acceptance increases significantly. This "tangible benefit" model is a blueprint for other rural areas struggling with budgetary constraints.

2. The Challenge of "Next-Gen" Biogas

The transition is not without risk. By tying the heating grid to an aging biogas plant, the municipality is betting on the continued viability of agricultural energy. As federal regulations evolve, the community must ensure that these plants can transition to more flexible, demand-driven operations (often called "flex-plants") to remain profitable without relying solely on electricity price spikes.

3. Scaling the Energy Transition

Mühlen Eichsen proves that you do not need a multi-million euro master plan to start. By focusing on "low-hanging fruit"—rooftop solar on new public buildings and utilizing existing CHP heat—the municipality is building its energy system modularly. This is a vital lesson for the thousands of German municipalities that must submit their mandatory "Municipal Heat Plans" (Kommunale Wärmeplanung) by 2028.

Conclusion: A Model for the Future?

Mühlen Eichsen is not attempting to reinvent the wheel, but rather to optimize the resources at its disposal. By aligning legislative incentives (Section 6 EEG) with community needs (heating schools and homes), they have created a template that balances the macro-level requirements of the German Energiewende with the micro-level realities of rural finance.

As the 2028 deadline for the heat network approaches, the town will face the same challenges as the rest of the country: navigating volatile energy markets, managing aging infrastructure, and securing public support. Yet, by securing the revenue stream from the Goddin wind park today, they have bought themselves the financial runway needed to navigate these hurdles. For a small community of under 1,000 people, that is not just a success in energy policy—it is a masterclass in local governance.