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Lucas B. Hyman P.E., LEED

Lucas B. Hyman, P.E., LEED AP, is currently president of GEI, a consulting firm he helped found some 20 years ago, which provides district energy (central plants, CHP, TES, distribution systems) and laboratory/building HVAC planning, design, and commissioning services. Hyman began his career at the age of 17 as a power plant operator with the U.S. Navy before obtaining his mechanical engineering degree, and now has more than 30 years of experience with the plan-ning and design of public and private facilities. As a registered professional engineer in eight states, Hyman has had the opportunity to plan and design more than 100 district energy projects to date, and has received numerous ASHRAE project awards, including the Presidential Award of Excellence and the George B. Hightower Technical Achievement Award. Hyman is a vice chair of ASHRAE’s District Energy Cogeneration group, and chair of the thermal storage technical committees. He can be reached at


A Study In Chilled Water System Retrofits

With fluctuating energy prices, Loma Linda University searched for a cooling solution that would benefit the sprawling campus. Three different thermal energy storage systems were analyzed to find the best fit.
Founded in 1905, Loma Linda University (LLU) in Loma Linda, CA, is a growing educational health-science institute and medical center.
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Thermal Energy Storage Benefits And Sensible Systems

Some thermal storage media are familiar to most of us, but what about gravel? Or lake water? See how those can work in the right environments, and tuck this away as a general refresher on thermal storage concepts and options for use in hospitals, data centers, and elsewhere.
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Engineered Systems Magazine


2015 January

Check out the January issue of ES with features on commercial kitchen exhaust ducts, doubling energy productivity, pressurization smoke control systems, and more!
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System Design

Based on your experience and knowledge level, are you currently comfortable designing or maintaining a system incorporating VRF or radiant ceiling panels?
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The Green Energy Management Book

Learn from our experts how to evaluate job opportunities, market your services, sell a Walk-through Survey, target areas for an Energy Audit, calculate energy savings, do retrofit work, and win continuing contracts for retrofit work.

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Clear Seas Research

Clear Seas Research ImageWith access to over one million professionals and more than 60 industry-specific publications,Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

Tomorrow's Environment Podcast

This series from longtime columnist and chronic forward-thinker Howard McKew covers a lot of ground -- from retrocommissioning to systems training, on toward checklists for drawings and tips for meeting minutes. Click HERE to be taken to the podcast page!


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