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Passive House Standard
Passive Houses are characterized by an especially high level of thermal comfort with minimum energy consumption. In general, the Passive House Standard provides excellent cost-effectiveness particularly in the case of new builds. The categories Passive House Classic, Plus or Premium can be achieved depending on the renewable primary energy (PER) demand and generation of renewable energy.
The Passive House Standard often cannot be feasibly achieved in older buildings due to various difficulties. Refurbishment to the EnerPHit Standard using Passive House components for all relevant structural elements in such buildings leads to extensive improvements with respect to thermal comfort, structural integrity, cost-effectiveness and energy requirements. The EnerPHit-Standard can be achieved through compliance with the criteria of the component method or alternatively through compliance with the criteria of the energy demand method. Only the criteria of one of these methods must be met.
PHI Low Energy Building Standard
The PHI Low Energy Building Standard is suitable for buildings which do not fully comply with Passive House criteria for various reasons.