John Leslie

John Leslie is the principal innovator behind groundbreaking chiller trending, tracking, and diagnostics software. With over 50 years of experience in analyzing chiller performance and training facility members to enhance their operations, John has established himself as a leading expert in energy management and building system optimization.
John began his career by completing the co-op engineering program at Caterpillar Tractor Company, where he worked in large chiller and power plants as an engineer. This experience laid the foundation for his extensive expertise in chiller systems. His career has spanned various markets and roles, including serving as a controls engineer at St. Francis Medical Systems and consulting for prestigious institutions like the University of Notre Dame and Western Michigan University as an Energy Management Systems (EMS) Specialist.
In 2005, John took on the role of energy manager for MGM Resorts International, where he achieved remarkable success by reducing $8 million in energy costs over two years through innovative solutions, including chiller optimization strategies. His international work includes projects across Asia, Europe, and North America, such as the MGM resorts in Macau and Sanya, China, the iconic Marina Bay Sands in Singapore, and the Daniel K. Inoue International Airport in Honolulu. John’s controls expertise transcends facilities operations to entertainment, including the Mirage volcano, Bellagio fountains, Cirque du Soleil and pyrotechnic displays up and down the Las Vegas strip.

John is renowned for his holistic approach to energy reduction in commercial buildings, offering advanced technologies and intelligent solutions for chiller plant optimization. His extensive experience with major chiller and automation manufacturers makes him a sought-after expert in the field. He has collaborated with global companies like Mitsubishi and Siemens, sharing his knowledge on VFD solutions and chiller drive retrofits, respectively.

John's accolades include the Tridium Niagara Spirit award and RealComm Digie awards, recognizing his contributions to the automation and energy management sectors. Currently based in Las Vegas, Nevada, John continues to provide consultancy services to various international clients, including the Government of Vietnam, as a Siemens Solution Partner.

John Leslie's legacy is defined by his innovative contributions to energy management and his dedication to optimizing building operations globally.