ClueLuma

Two-block energy charge calculator

Energy charge is calculated as E1 × r1 + E2 × r2. Use the stated system boundary and matching input units.

C=E1×r1+E2×r2C = E_{1} \times r_{1} + E_{2} \times r_{2}

Calculator

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

kWh
$/kWh
kWh
$/kWh
$

Worked example

Given

  • E1E_{1} = 10,000 kWh
  • r1r_{1} = 0.12 $/kWh
  • E2E_{2} = 15,000 kWh
  • r2r_{2} = 0.09 $/kWh
C=10,000×0.12+15,000×0.09=2,550C = 10{,}000 \times 0.12 + 15{,}000 \times 0.09 = 2{,}550

Symbols and units

SymbolMeaningUnit
CCenergy charge$
E1E_{1}first-block energykWh
r1r_{1}first-block price$/kWh
E2E_{2}second-block energykWh
r2r_{2}second-block price$/kWh

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.