What 40 means
An Effizienzhaus 40 may require no more than 40 per cent of the primary energy of the statutory reference building. Heat loss through the building envelope may be no more than 55 per cent of the reference value. Primary energy includes the resources needed to supply the energy carrier.
The benefit to you
An airtight, well-insulated envelope retains warmth in winter. Building systems have less work to do and rooms maintain more even temperatures. That quality is felt every day, long after moving in.
Envelope and systems designed together
Insulation, windows, junctions, heating and ventilation are coordinated. MI10 uses a groundwater heat pump; FE05 is planned with geothermal district heating from GeoVol.
An advantage when letting
Tenants consider rent together with running costs. A building with demonstrated energy efficiency offers a clear argument when comparing homes.
Clarify funding early
An efficiency standard and a funding approval are different things. We bring suitable funding programmes into the financing discussion at an early stage.
The idea becomes concrete
Let’s talk about your plans.
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