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Chiller / Cooling Tower Cost of Scale

Enter your system values below to see your potential electrical energy cost savings.

Select Thickness of Scale on your System:

Scale buildup on your system results in efficiency loss

  • 1/64" Scale Thickness = 4.6% loss
  • 1/32" Scale Thickness = 9.2% loss
  • 1/16" Scale Thickness = 13.6% loss

Enter Your System Tonnage:

One Ton of A/C Consumes
0.9 KWH/Hour

Enter Your Operating Factors:

Lightly Scaled Chiller Lightly Scaled Chiller
Clean Chiller Clean Chiller

Chillers and Cooling towers are the single largest energy-using component in most facilities, and can typically consume over 50% of the electrical usage. Chillers and Cooling towers use approximately 20% of the total electrical power generated in North America and the U.S. Department of Energy estimates that chillers expend up to 30% in additional energy through inefficiency. With over 100,000 cooling towers in the United States alone, inefficiency costs industry billions of dollars in energy annually.

Cooling towers running inefficiently also result in decreased equipment reliability, increased maintenance intervals and shortened lifespan. The slightest decrease in chiller performance can have a major impact on efficiency. For instance, every 1 °F increase in condenser water temperature above full load design can decrease chiller efficiency by 1% to 2%. A failing or neglected water treatment program can reduce efficiency 10% to 35% or more in extreme cases.