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To be certified Passivhaus, built using standard construction techniques achieving an airtightness level of 0.28ACH@50Pa. The house is a two storey 280m2 multigenerational family home with polished concrete slab and a solar passive design achieving a NatHERS 7.9 star rating. So far, the average electricity consumption is 16kWh/day, for 6 people with induction cooking and heat pump hotwater. The 5 kWh reverse cycle system was switched on once during the 40C day for 2 hours.