Annual storage demand savings calculator

Demand savings depend on the actual billed peak reduction and the number of eligible billing months.

S_{D} = \mathit{dP} \times r_{D} \times M

Calculator

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

Given

S_{D} = 180 \times 14 \times 6 = 15{,}120

Symbol	Meaning	Unit
$S_{D}$	annual demand-charge saving	$/yr
$\mathit{dP}$	reduction within billed peak	kW
$r_{D}$	monthly demand rate	$/kW-month
$M$	months with credited reduction	month/yr

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