'Mr. Liu has more than 30 years of experience as an accomplished senior mechanical engineer with comprehensive knowledge and experience in various aspects of commissioning, energy auditing and retro-commissioning. Chris is an integral memer of Commissioning & Energy team providing commissioning, energy auditing and retro-commissioning services for more than 9 million square feet of commercial office and data center space as part of Morgan Stanleys multi-uilding retro-commissioning initiative as well as numerous commissioning engagements at Columia University.'