This obviously is some sort of passive design like wrapping foil around a TV antenna.

In passive designs, he said, the mechanism has built into it the elements that let it move naturally.

Very few industry experts have the skills or experience to fully capture benefits of the passive design.

The house has a compact floor area and relies as much as possible on passive solar design to keep costs down.

The building is sited for climate responsive, passive solar design.

West-facing windows should be minimized or eliminated in passive solar design.

The passive design's smaller size may be a virtue in meeting the desires of the customers: electric utilities.

This effect enhances combustion, producing more heat than other passive designs.

This idea is all the more true concerning buildings being built thanks to passive designs.

Hence, it is possible to cumulate benefits from the passive design.