Solar Window
The black squares are parts in a photovoltaic system (solar cells) that produce electricity and yet you have enough light for the café inside the building. Solar cells can convert more energy when the sun is shining and less in cloudy conditions. Building integrated photovoltaics (BIPV) will increasingly influence our built environment, roofs, walls, windows and so on.
en.m.wikipedia.org/wiki/Building-integrated_photovoltaics
The black squares on the ground that you can walk on are also solar cells.
One of the buildings at the ETC Solar Park in Katrineholm.
etcsolpark.se (website in Swedish)
Solar Window
The black squares are parts in a photovoltaic system (solar cells) that produce electricity and yet you have enough light for the café inside the building. Solar cells can convert more energy when the sun is shining and less in cloudy conditions. Building integrated photovoltaics (BIPV) will increasingly influence our built environment, roofs, walls, windows and so on.
en.m.wikipedia.org/wiki/Building-integrated_photovoltaics
The black squares on the ground that you can walk on are also solar cells.
One of the buildings at the ETC Solar Park in Katrineholm.
etcsolpark.se (website in Swedish)