Experimental  Prototype architecture   I suggest that any specific designs which have not had formal evaluation should not be included as part of this article  A casual reader may be mislead into believing that they would be able to reproduce these results  see httpwwwfsecucfeduenresearchbuildingszeroenergylakelandindexhtm for an example of a very strict protocol for evaluation  These examples may need further validation  John Haits Passive Annual Heat Storage PAHS method  Water walls and roof ponds Australian deepcover earthedroof Don Stephens Annualized GeoSolar AGS heating Thermal Buffer Zone  zero Energy building