ClueLuma

Demand reduction cost saving calculator

Price the actual drop in billed demand, not an unverified connected-load reduction.

SavingD=rD×(Dbefore−Dafter)\text{Saving}_{D} = r_{D} \times \left(D_{\text{before}} - D_{\text{after}}\right)

Calculator

Enter the values you know and leave one box empty. Calculate finds the empty one, the result or any input.

kW
kW
$/kW
$

Worked example

Given

  • DbeforeD_{\text{before}} = 650 kW
  • DafterD_{\text{after}} = 560 kW
  • rDr_{D} = 15 $/kW
SavingD=15×(650−560)=1,350\text{Saving}_{D} = 15 \times \left(650 - 560\right) = 1{,}350

Symbols and units

SymbolMeaningUnit
SavingD\text{Saving}_{D}demand-charge saving$
DbeforeD_{\text{before}}billed demand before controlkW
DafterD_{\text{after}}billed demand after controlkW
rDr_{D}demand rate$/kW

Related calculators

Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.