Cost performance comparisons of equivalent conventional and 100% solar houses

The sixth design of ALL SOLAR HOUSE and the equivalent conventional house had detailed performance and item by item cost checks made. Surprisingly the active solar comes out to lower cost than the passive. A further suprise, the passive comes out as more efficient than the active. The conventional house has slightly more uniform temperature and has comparable cost. All these designs are thermostated to the 20+/sup 0/C (70+/sup 0/F) range. All have the same volumetric efficiency. The line of descent for ALL SOLAR HOUSE is: Experimental Manor, All glass house, Peterson's, Binghamton, Loraine, and now Keene. The last on speculation for the low cost market as a prototype for wide spread use. Several of the specially engineered components have been used that they are offered commercially.