EV Charging Infrastructure Manufacturing worked example

Install Kit Completeness at 72% kit issue share assigned to this estimate: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop kit issue share assigned to this estimate to 72%, then walk the calculation through step by step. Estimate the cost impact of incomplete EV charger installation kits shipped with missing hardware, labels, anchors, or connectors.

The inputs for this scenario

  • Incomplete installation kits: 45 kits (held at the documented default)
  • Cost per incomplete kit: 62 $ / kit (held at the documented default)
  • Kit issue share assigned to this estimate: 72 % (the input this scenario stresses; the baseline uses 100)
  • Fixed expedite or field-support adders: 750 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Variable kit completeness cost = incomplete kits × cost per incomplete kit × assigned share.
  • Total install kit completeness cost works out to 2,759 $ at these inputs, and this is the headline figure for the scenario.
  • Cost per incomplete install kit works out to 61.31 $ / kit at these inputs.
  • Variable kit completeness cost works out to 2,009 $ at these inputs.
  • Expedite or field-support adders works out to 750 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where kit issue share assigned to this estimate sits at 100% and the headline result is 3,540 $, this scenario comes in 22.07% below the baseline at 2,759 $.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to kit issue share assigned to this estimate, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It does not value the installer's lost day, the customer's delayed revenue from a charger that cannot energize, or warranty-relationship damage — only the direct kit and support costs.

Results at a glance

  • Total install kit completeness cost: 2,759 $ (headline result)
  • Cost per incomplete install kit: 61.31 $ / kit
  • Variable kit completeness cost: 2,009 $
  • Expedite or field-support adders: 750 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Install Kit Completeness calculator, set kit issue share assigned to this estimate to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.