Photographed by Gao Wei

In the southwest region of Hangzhou Energy and Environment Industrial Park, four-storey building has just been completed on November 1, 18.5 meters high, steel frame structure.

It uses the latest construction technology at home and abroad. With annual energy consumption less than 1 / 4 of buildings of the same kind, it is known as the "Green Building Science and Technology Museum". It will be a demonstration platform for energy-saving and environmental protection.  

Next year, the sun roof demonstration projects of Hangzhou in plan consist of 23 projects, total power amount is planned under 10 MW. Choices of architecture types are diverse, including urban public buildings, large public facilities, government office buildings, professional departments and markets, residential homes, universities and so on.