The original iron boxes with the round roofs first appeared in 1926. They were designed by Giles Gilbert Scott, the architect of the Battersea Power Station in London.

With increasing use of smart meters, which mitigate the problem of intermittency that plagues renewable forms of energy, demand for rooftop installations should grow strongly in these places.

The ‘Energy Roof’, designed by Coop Himmelb(l)au is powered by both the wind and the sun and serves as the canopy of a gallery that explores important archeological sites around the city.