When looking for energy savings in an existing chiller plant, or plant renovation, look deeper than the chiller itself. Though the chiller may have the largest peak load of any component, it may not be the largest contributor to total annual energy consumption. It’s more important to look at how all the components work together throughout the year to achieve the greatest savings. Paying attention to part-load efficiency is key to getting maximum savings.

There are also simple and low- or no-cost operational changes that can be investigated to greatly reduce the energy use of an existing system, without risk to proper plant operation or occupant comfort. Here are five steps to consider.

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