PA+ MEP Engineering & Design invited Engineers Fang and Cheng from ADVARC to give a speech on their design collaboration experience on the commercial complex project. Two engineers steep the story with a creative business complex and application of MEP. The topics include MEP consultation influence on the design stage and economy efficiency, the double-carbon aims experience, the solution of renewable energy, thermal power system choice, storage power system plan in North China projects, high efficient machine room design control a low-cost, special function such as interiors plantation system or skating playground consider the air flow path, CFD applied in the interiors environmental simulation and provide a low-cost approach. The session makes a lot of sense for our future design.