en.wikipedia.org/wiki/Passive_house
2 corrections found
0.0047 MJ/sq ft/sq ft
This unit conversion is wrong. A limit of 15 kWh/m²/year converts to about 5.0 MJ/ft²/year, not 0.0047 MJ/ft²/year.
Full reasoning
The Passive House criterion itself is correct: PHI states a specific space-heating demand of ≤ 15 kWh/(m²a). But the parenthetical conversion shown here is not.
Using standard unit conversions:
- 1 kWh = 3.6 MJ
- 1 m² = 10.76391 ft²
So:
- 15 kWh/m²/year = 15 × 3.6 = 54 MJ/m²/year
- 54 MJ/m²/year ÷ 10.76391 = about 5.02 MJ/ft²/year
That means the article's value of 0.0047 MJ/sq ft/sq ft is off by roughly a factor of 1,000 and also uses malformed units (MJ/sq ft/sq ft instead of an annual energy-per-area expression such as MJ/ft²/year).
2 sources
- Passive House Institute — Certified Passive House: Certification criteria for residential Passive House buildings
Specific space heating demand ≤ 15 kWh/(m2a) or alternatively: heating load ≤ 10 W/m².
- NIST Guide to the SI, Appendix B.9
kilowatt hour (kW·h) to megajoule (MJ): 3.6 E+00; square foot (ft²) to square meter (m²): 9.290 304 E-02.
The world’s tallest certified Passive House building is the 88 m Bolueta tower in Bilbao, Spain (2018).
This is outdated. The Passive House Institute identified Sendero Verde in New York City as the tallest Passive House-certified building in the world in May 2025.
Full reasoning
This sentence was true in 2018, when PHI/iPHA announced that the 88 m Bolueta tower had become the tallest Passive House building. But it is no longer current.
On May 7, 2025, the Passive House Institute / iPHA published an event page for Sendero Verde, NYC describing it as "the tallest Passive House-certified building in the world." That directly contradicts the article's present-tense claim that Bolueta is the tallest.
So the problem is not that Bolueta was never a record-holder; it is that the article states an outdated record as if it were still current.
2 sources
- Passive House Institute / iPHA — Project Spotlight: Sendero Verde, NYC
At its core, Sendero Verde is a Passive House marvel ... it also holds the distinction of being the tallest Passive House-certified building in the world.
- iPHA press release on Bolueta (2018)
88-metre high building world's tallest Passive House – certification ensures quality ... Bolueta in the Spanish city of Bilbao is now the tallest Passive House building in the world.