Manufacturing Project Portfolio & Capex worked example

Portfolio Capacity at 65% expected uptime: a worked example

This worked example runs the portfolio capacity numbers for a tougher week than the baseline: 65% expected uptime instead of the typical 90%. Estimate portfolio capacity for manufacturing project portfolio and capex using production-ready inputs so teams can confirm whether capacity can cover demand before committing the schedule.

The inputs for this scenario

  • Units produced per production cycle: 4 units / cycle (held at the documented default)
  • Available production cycles in the period: 480 cycles (held at the documented default)
  • Expected uptime (availability): 65 % (the input this scenario stresses; the baseline uses 90)
  • Expected first-pass yield: 97 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross portfolio capacity = portfolio capacity output per cycle × available portfolio capacity cycles.
  • Good portfolio capacity works out to 1,211 units at these inputs, and this is the headline figure for the scenario.
  • Gross portfolio capacity works out to 1,920 units at these inputs.
  • Portfolio capacity downtime loss works out to 672 units at these inputs.
  • Portfolio capacity yield loss works out to 37.44 units at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where expected uptime sits at 90% and the headline result is 1,676 units, this scenario comes in 27.78% below the baseline at 1,211 units.
  • Use it in S&OP and capacity planning when you need a committable volume rather than a theoretical maximum. 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 portfolio capacity: 1,211 units (headline result)
  • Gross portfolio capacity: 1,920 units
  • Portfolio capacity downtime loss: 672 units
  • Portfolio capacity yield loss: 37.44 units

Run it with your numbers

  • To rerun this with your own numbers, open the live Portfolio Capacity calculator, set expected uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.