PROJECT DESCRIPTION:

The two buildings were heated with gas.

1.) Roots Energy GmbH was commissioned by the building owner to conduct a feasibility study for an energy-efficient building renovation. A dynamic building simulation by ZeroEdition GmbH determined that, to maintain the building's value—especially considering the expected climate changes by 2050—a heating system upgrade to renewable energy was necessary.

2.) Roots Energy GmbH handled the building permit application and the grant application. The Energy Cubes solution, combined with deep boreholes as a source for decentralized brine-to-water heat pumps, proved to be the most cost-effective option.

3.) The heating system upgrade was carried out by S.I. Energiesysteme GmbH, in accordance with the detailed plans developed by Roots Energy GmbH and OBENAUF Immobilienentwicklungs GmbH. The Energy Cubes were positioned on the roof of the larger building. The Roots Energy hydraulic module (Roots Hub) was installed in the basement. Each apartment has the option of connecting a decentralized heat pump to the system.

In addition to the economic advantages, the energy cubes produce no noise emissions and, with just one connection each for the flow and return pipes, could be connected to the energy system in a matter of minutes. During heating operation, the energy cubes extract energy from the outside air. During cooling operation, they release the excess energy back into the outside air. The energy cubes can also be used to regenerate the ground source heat pumps.

KEY DATA:



Project Type: Renovation

Building Type: Multi-family dwelling

Heat Distribution: Radiator heating

Domestic Hot Water: Included

Heat Pumps: 23 x Novelan wsv 6.2k3m

Energy Cubes: 2 x H1-Type 5

Deep Boreholes: 7 x 120 m DN40

Heating Capacity: 78 kW

Completion Year: 2025

Tittwiesenstrasse, Chur

Schweiz