wong, ls-bg

Lung-Sing Wong, PE

Principal (Retired)
Lung-Sing specializes in investigative and analytical engineering services, performing energy analyses, and engineering troubleshooting in existing buildings. He joined Servidyne in 2004 and has been Principal of Servidyne, LLC since 2014. With 38 years in the field, he is a sought-after expert in energy simulation and modeling. His experience with energy survey and analysis projects includes military bases, government complexes, health care centers, laboratory facilities, college campuses, and public school systems. He has developed in-house energy analysis spreadsheets including energy savings calculations for complex HVAC system and energy project implementation cost estimates. He is an expert in the use of energy simulation tools, including DOE-2.1, eQUEST, HAP, System Analyzer and Trane Trace. Lung-Sing holds a Bachelor of Mechanical Engineering and a Master of Science in Mechanical Engineering from Georgia Tech. He is a Registered Professional Engineer and member of ASHRAE.

poulos, jim-bg

Jim Poulos, PE

Principal (Retired)
Jim is a nationally recognized expert on building energy efficiency and system optimization with over 35 years’ experience performing energy analyses and modeling, design services and construction supervision, commissioning, retro-commissioning, and troubleshooting in both new construction and existing buildings. Jim first joined Servidyne in 1988 and was Principal of Servidyne, LLC from 2014 to 2018. Jim holds Bachelor of Science and Master of Architecture degrees from Georgia Tech and a Master of Business Administration from the Goizueta School of Business at Emory University. He is a Registered Professional Engineer in several states, a LEED® Accredited Professional, and an ASHRAE certified Building Energy Modeling Professional. Jim is a long-time member of ASHRAE and is Past-Chair of the Technical Committee for Owning and Operating Costs and Past-Vice-Chair of the Project Guideline Committee that developed the ASHRAE Guideline for Existing Building Commissioning.