SolarWindow Technologies, Inc. (WNDW)

[uksausage]

It still isnt a development goal.

It may be a product marketing goal.

anyway what is the point of having a payback validated when you cannot show a product that can be applied to a 50 story building?

AFAIK there is:
1) no full window sized demonstration system yet.
2) No method of apply ton a window in-situ,
3) there may be a way of applying to glass in manufacture but see #1 - not delivered yet!