EV vehicle and charger commissioning date pairing calculator

Calculate feasible vehicle activation days and unstaged vehicles with your own figures.

Your numbers

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

Use feasible vehicle activation days and unstaged vehicles to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Vehicle replacement-ready days
5,10,12
Charger commissioning days
7,14,14
Permanent depot capacity (vehicles)
3
Feasible vehicle activation days (JSON)
[7,14,14]
Unstaged vehicles (count)
0

Try another scenario

Vehicle replacement-ready days
0,3,8
Charger commissioning days
2,6,9
Permanent depot capacity (vehicles)
2
Feasible vehicle activation days (JSON)
[2,6,null]
Unstaged vehicles (count)
1
Calculation method

Calculation method

Feasible vehicle activation days (JSON)

Sort replacements and commissioning dates; pair kth replacement with kth commissioned port up to depot capacity; activate at max of the two dates, otherwise null.

Unstaged vehicles (count)

max(0,replacement count−min(charger count,depot capacity)).

Symbols and units
a
Vehicle replacement-ready days
b
Charger commissioning days
c
Permanent depot capacity (vehicles)

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

  • Aggregate vehicle staging in elapsed days; one new EV consumes one simultaneous depot charging slot. 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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