Avoided cost of lossy load shifting calculator

Net energy-charge savings is calculated as E_on × r_on − (E_on/η) × r_off. Use the stated system boundary and matching input units.

S = E_{\text{on}} \times r_{\text{on}} - \frac{E_{\text{on}}}{\eta} \times r_{\text{off}}

Calculator

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

Given

S = 100 \times 50 - \frac{100}{0.8} \times 33.33333333 \approx 833.3

Symbol	Meaning	Unit
$S$	net energy-charge savings	$
$E_{\text{on}}$	avoided on-peak energy	kWh
$r_{\text{on}}$	on-peak price	$/kWh
$r_{\text{off}}$	off-peak price	$/kWh
$\eta$	delivered energy divided by charging energy	—

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