Cooperative builds district heating network in Bundorf
05/17/2023
Source: Energy & Management Powernews
The energy cooperative "EGIS eG" is building a renewable Fernwärmentz for the Lower Franconian community of Bundorf. The heat is to be generated by means of heat pump and electric boiler.
In the municipality of Bundorf (Bavaria), an emission-free district heating network is to be created and operated cooperatively. The electricity required for the district heating supply is to be obtained from the Bundorf solar park, announced the photovoltaic company Maxsolar from Traunstein. In this way, Maxsolar wants to implement a "zero emission concept" for heat generation together with Egis.
Maxsolar has earmarked 1.5 MW of the solar park for solar heat supply. The concept calls for heat to be generated using a 200-kW heat pump and a 400-kW electric boiler. In addition, according to Maxsolar, a 75,000-liter hot water buffer will also be installed. A 200-kW wood-chip boiler will serve as redundancy in winter, covering peak loads and low-sun winter periods for a maximum of 1,600 hours.
The energy cooperative Egis eG has founded an operating company for the construction of the district heating network, which is financed with citizen contributions. The investment sum for the project amounts to 3.6 million euros including the share in the solar park, which feeds the district heating network.
The basic price for end users will initially be 750 euros gross per year, according to Maxsolar, and the energy price for heat will be 7.99 cents per kilowatt hour. "These prices will be able to be kept stable in the long term, as the electricity purchase costs from photovoltaics can be planned. An average household will thus achieve stable heating costs of less than 200 euros gross per month," says Elke Hanel, a member of the Maxsolar management team. The concept could also serve as a blueprint for other municipalities, especially in rural areas and for places with fewer than 10,000 inhabitants, she added.
A network about 1.6 kilometers long is currently planned. Municipal properties such as the town hall, the village community center, the fire department and the kindergarten will also be connected. Maxsolar estimates the total heat requirement at around 884,000 kWh per year. The completion of the district heating network is planned by the end of 2023.