Source: Energy & Management Powernews, February 02, 2022
In the new Loisachquartier in Wolfratshausen, Bayernwerk is developing an innovative energy supply model.
On the so-called "Kraft-Areal" in Wolfratshausen, Upper Bavaria, a building about 100 meters long with 70 apartments and in the south a second are currently being built, which houses a grocery store on the first floor and above it again 47 residential units. The new owners of the residential and commercial complex are to benefit in several ways from the energy concept in the Loisach Quarter after they move in, which is planned for the 3rd quarter of 2022.
Two gas-fired combined heat and power plants (CHP) are to supply the energy for the area. The electricity from the plants, 100 kW in total, can be used on site as tenant electricity. The rest is fed into the grid. The waste heat is used for heating and hot water supply. High-efficiency gas boilers are also available for particularly cold winter days. Photovoltaic systems on the roofs of the buildings will contribute a second 120 kW. The neighborhood solution also includes the installation of a charging infrastructure for electric vehicles.
Innovative technologies instead of costly individual solutions
For Robert Budde, Head of Sales CES-Business and responsible for neighborhood solutions at Bayernwerk Natur GmbH, the advantages are obvious: "We provide the residents of a neighborhood with sustainable energy at competitive prices." Instead of costly individual solutions per household, a neighborhood solution could also use innovative technologies at favorable prices. In addition to the energy company from Regensburg, Loisach Quartier GmbH & Co. KG is also involved in the project.
In the project, Bayernwerk brings in experience from other projects, as stated in a company release: In the so-called Werksviertel-Mitte at Munich's Ostbahnhof, 13 buildings are already sustainably supplied with energy, heating and cooling. The district produces up to 80% of its own electricity. In addition to two CHP units, decentralized groundwater heat pumps provide heating and cooling as well as solar systems for CO2-neutral electricity.
The fact that smaller localities can also benefit from neighborhood solutions is demonstrated by the 5,000-inhabitant community of Wackersdorf in northeastern Bavaria. Here, the municipality supplies its properties, such as the school and a multigenerational house, with locally generated heat and electricity and also incorporates a battery storage system into the concept.
Author: Günter Drewnitzky