This may be better off being delivered through the existing framework by reducing the watts per square metre in the building code.
Air conditioners
yes but only high efficiency – possibly with movement controllers and similar?
Note that Air Conditioning in SA under REES has such a small value it will be unlikely to be used.
Ventilation fans.-
The rules also need to be able to handle the replacement of fans/motors with one that produces less power but equal air flow. The issue is manly that quantity of air flow is the required outcome rather than power. Air flow should be the metric used.
Suggested – where the installer is a registered refrigeration mechanic, a fit for purpose statement would suffice. Currently it requires a matching power output range which does not cater for more efficient air movement through improved fan technology.
