Blog

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...

If you reside outside the world of energy efficiency, you might not be familiar with an energy audit. Perhaps you just want to reduce operating expenses by lowering your utility bills? Maybe you need to meet corporate sustainability goals? An energy audit can be the...

You can evaluate energy performance and target energy saving projects using graphics like in the case of one of our portfolio clients where we evaluated lighting control system performance looking at lighting power density (LPD) and energy use intensity (EUI). Data visualization is one of...

A big focus for maintenance staff is minimizing complaints to relieve occupant discomfort. People who are consistently too hot or too cold make it known and we’ve seen many buildings where the entire building operation was off kilter due to the needs of a few,...

We use regression analysis frequently in our energy engineering analysis, but results can be less than ideal for many cases. Now with big data and the current technology of faster computing, we can use a comprehensive understanding of statistics, hypothesis testing, and principles of inference...

If you’re looking to significantly reduce your electric and gas utility bills, and don’t want to shell out hundreds of thousands or millions of dollars for new HVAC and lighting equipment, then chances are you’ve considered Retro-Commissioning (RCx) – and if you haven’t, you should! With...

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