City of Kempten (Allgäu region)
Category: Distribution System, District
Location: Kempten, Germany
As a service partner of the City of Kempten, the Allgäuer Überlandwerk GmbH (AÜW) – regional utility and consortium partner of the ELSA project – is involved in the planning and development of the residential area called "Auf dem Bühl”. This district, which is one of the six ELSA pilot sites, consists of six multi-family houses with a total of 81 apartments. On three of the six houses, the AÜW installed rooftop solar panels (37.1 kWp) that provide electric energy directly to the houses’ residents.
Maximising electricity self-supply at city quarter level
- Increasing self-consumption
- PV power smoothing
- Providing primary reserve (simulative)
- DSO manages the Reactive Power Compensation (simulative)
- Balance group optimization (simulative)
- Participation to energy trade market (simulative)
Interviewing Christian Ziegler from the Allgäuer Überlandwerk GmbH
What is the special focus of the ELSA pilot site in the City of Kempten?
At the pilot site in Kempten, we want to show that the ELSA battery storage system can be used for entire building complexes rather than single-family houses. We also investigate the usefulness of the services offered by the ELSA battery storage system for the grid as well as a residential area. At the pilot site in Kempten, we do not only work with commercial customers, but directly involve private consumers.
What are the long-term benefits you expect from installing a second life battery storage system?
By installing a battery storage system for the district "Auf dem Bühl”, we hope to be able to increase the district’s self-consumption of electricity produced from local renewable energy sources. Also, we aim at investigating the advantages that installing a battery storage system offers to the electricity grid – e.g. grid stabilization and reducing the need for grid enhancement. We chose to trial a storage system based on second life batteries, because we believe that using second life batteries will reduce the system cost as well as its environmental impact. That way, we hope to have an attractive product ready for our business customers at the end of the project.