EV & Battery Manufacturing worked example

EV Charging Bay Capacity at 65% charging bay uptime: a worked example

This worked example runs the ev charging bay capacity numbers for a tougher week than the baseline: 65% charging bay uptime instead of the typical 90%. Estimate usable charging bay capacity from vehicles or packs per cycle, available cycles, charger uptime, and charge-pass yield.

The inputs for this scenario

  • Vehicles or packs charged per bay cycle: 12 vehicles/packs per cycle (held at the documented default)
  • Available charging cycles in the period: 18 cycles (held at the documented default)
  • Charging bay uptime: 65 % (the input this scenario stresses; the baseline uses 90)
  • First-pass charge completion yield: 96 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross charging capacity = units charged per cycle × available charging cycles.
  • Good charging bay capacity works out to 135 units at these inputs, and this is the headline figure for the scenario.
  • Gross charging capacity works out to 216 units at these inputs.
  • Units lost to charger downtime works out to 75.6 units at these inputs.
  • Units lost to charge faults works out to 5.62 units at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where charging bay uptime sits at 90% and the headline result is 187 units, this scenario comes in 27.78% below the baseline at 135 units.
  • Use it for shift or weekly capacity planning of a charging or formation area, sizing buffer ahead of shipping, and evaluating downtime impact. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Good charging bay capacity: 135 units (headline result)
  • Gross charging capacity: 216 units
  • Units lost to charger downtime: 75.6 units
  • Units lost to charge faults: 5.62 units

Run it with your numbers

  • To rerun this with your own numbers, open the live EV Charging Bay Capacity calculator, set charging bay uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.