I really applaud the heat capture but at the same time they are saving
energy use on the inside of buildings, the solar exposed exterior is
being "radiated" and producing energy that is heating the atmosphere.
Very progressive on their part I will provide a link where they can see
time-lapsed infrared videos of buildings becoming urban heat islands.
See what a coat of paint or shade does for a building.
http://www.thermoguy.com/urbanheat.html