Electric efficiency on the same heat-rate basis calculator

Efficiency compares electric output with fuel input on the same boundary and heating-value basis.

Units

\eta_{e} = \frac{3412}{\mathrm{HR}}

Calculator

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

Given

\eta_{e} = \frac{3412}{10{,}800} \approx 0.3159

Symbol	Meaning	Unit
$\eta_{e}$	electric conversion efficiency	fraction
$\mathrm{HR}$	fuel input per electric output on one gross/net and HHV/LHV basis	Btu/kWh

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