Cost Efficiency
Cooling tower energy savings calculator
See how much energy your facility wastes from degraded cooling tower performance
Cooling tower details
Number of towers
towers
Tonnage per tower
tons
Towers actively running
towers
Chiller plant
Number of chillers
chillers
Tonnage per chiller
tons
Chillers actively running
chillers
Load factorTypical: 65–75%
%
Chiller efficiencyTypical: 0.55–0.65 kW/ton
kW/ton
Approach temperature degradation
Measured degradation above OEM spec
°F
Penalty rate per °FIndustry range: 1.5–2.0%
%/°F
Electricity rate
$/kWh
Chiller plant draw
—
kW at design
Efficiency penalty
—
% above design
Power wasted
—
kW continuous
Annual energy savings from restoration
—
5-year savings
—
10-year savings
—
Based on ASHRAE and chiller manufacturer data: every 1°F rise in condenser water temperature increases chiller energy by 1.5–2%. For VFD-equipped centrifugal chillers, actual penalty may be 10–13% per 5°F. All estimates should be validated against actual BMS data.