Even though the chiller can have the largest peak load of any component in a chiller plant, it may not be the largest contributor to total annual energy consumption.
Thomas Squillo explains why in “How To Get the Most Energy Efficiency From a Chiller Plant” for Building Operating Management magazine. He points out that it’s more important to look at how all the components work together throughout the year to achieve the greatest savings, while noting that paying attention to part-load efficiency is key to getting maximum savings.