In the US, there are very large variations in house interior volume, insulation, and usage patterns. Upper-middle class house built on a slab with standard in Dallas with a stay-at-home mom, for example? I wouldn't bat an eyelash at 100kWh/day on the hottest and wettest days. Condo apartment in downtown Houston? That would be excessive.
US insulation requirements in Dallas is R-20 in the walls [1]. The PassivHaus standard is R-40 to R-60. I believe Germany requires R-5 at a minimum. Mainstream US construction design and practice still doesn't account for thermal bridging, so that defeats much of the insulation we're throwing into our buildings.
US insulation requirements in Dallas is R-20 in the walls [1]. The PassivHaus standard is R-40 to R-60. I believe Germany requires R-5 at a minimum. Mainstream US construction design and practice still doesn't account for thermal bridging, so that defeats much of the insulation we're throwing into our buildings.
[1] https://eepartnership.org/wp-content/uploads/2016/02/Texas-2...