Author: Duane Kubischta

Commercial building heating, ventilation and air conditioning (HVAC) systems commonly use variable air volume (VAV) systems for their heating and cooling needs. VAV systems can be more energy efficient when properly controlled and operated. We frequently find these systems performing less than optimally and recommend...

Trust, but verify. Seems reasonable, but sometimes in commissioning I think ‘always verify’ is a better phrase. Investigation is key in retro-commissioning We were completing a retro-commissioning project on community college building in Southern California and noticed something off in the trend data. The economizer on two...

As efficiency engineers it’s important to be curious, persistent and to get into our client’s shoes. How, why, and can you show me? These questions help me remember an ethos that drives me every day as I solve big energy problems. Here is one great success story...

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