Passif Haus/Passive House Standards

From: Chris Pointon <[email protected]> Date: Fri, May 30, 2025 at 11:51 AM Subject: Re: Great Collaboration Banter session 71: Great Collaboration update To: Jenny Barna <[email protected]> Cc: Graham Stoddart-Stones <[email protected]>, Andrew Maliphant <[email protected]>, Graham Stoddart-Stones <[email protected]>, Joolz Thompson <[email protected]> As far as I can Google, "Passive House" and "PassivHaus" mean the same thing:

https://ukalternativeenergy.co.uk/passive-house-or-passivhaus/

There are other low energy standards such as EnerPhit and PHI Low Energy Building (LEB):

https://passipedia.org/_media/picopen/9f_160815_phi_building_criteria_en.pdf

These are not Passive House standard, but are still a high standard of energy efficiency. Last year, following a pilot, Cambridge City Council opted for their own "Cam Standard" for council-owned properties that is slightly lower than Passive House but higher than LEB. They found that fulfilling some Passive House requirements was disproportionately costly for the benefit.

That Passipedia site - https://passipedia.org/ - is probably the best jumping off point for people who really want to dig into Passive Houses.