Transit constant-power layover charging calculator

Calculate layover energy recovery and next-trip deficit by layover with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use layover energy recovery and next-trip deficit by layover to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Layovers [minutes,accepted battery-side kW,next trip kWh]; enter JSON
[[10,100,25],[15,80,18]]
Layover energy recovery (kWh, JSON)
[16.6666666667,20]
Next-trip deficit by layover (kWh, JSON)
[8.33333333333,0]

Try another scenario

Layovers [minutes,accepted battery-side kW,next trip kWh]; enter JSON
[[12,90,20],[20,60,25]]
Layover energy recovery (kWh, JSON)
[18,20]
Next-trip deficit by layover (kWh, JSON)
[2,5]
Calculation method

Calculation method

Layover energy recovery (kWh, JSON)

Duration×accepted battery-side power/60 for each layover.

Next-trip deficit by layover (kWh, JSON)

max(0,next-trip energy−layover recovery); assumes no preexisting energy credit.

Symbols and units
a
Layovers [minutes,accepted battery-side kW,next trip kWh]; enter JSON

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Constant user-supplied charging power for each layover; battery charging rate supplied by operator, no inferred taper. Supported limits: All numeric inputs and computed intermediates must remain finite. Supported numeric input magnitude is zero or 1e-12 through 1e12 in absolute value; reject values outside this bounded range. All lists/JSON record tables are limited to 100 records unless a stricter bound is stated; reject malformed record arity and wrong member types. All numeric values must be finite. Lists contain at most 100 records; required lists must be nonempty. Rates, probabilities and fractions are entered as fractions, not percentages; fractions must be between 0 and 1. Use a single consistent user-selected currency for all amounts; no exchange-rate conversion.
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