das Effizienzhaus
Translation
energy-efficient house, efficiency house
Examples
Der Bau eines Effizienzhauses wird gefördert.
The construction of an energy-efficient house is subsidized.
Die Dämmung des Effizienzhauses ist sehr gut.
The insulation of the energy-efficient house is very good.
Grammar Patterns
(as subject) An energy-efficient house ... Ein Effizienzhaus spart Energiekosten.
(in genitive) ... of an energy-efficient house The windows of an energy-efficient house are well insulated.
Similar Words
Synonyms: Niedrigenergiehaus (low-energy house), Passivhaus (passive house)
Etymology
A compound noun from 'Effizienz' (efficiency) and 'Haus' (house).
Memory Tips
Think of it literally as an 'efficiency house'—a building designed for high energy efficiency.