Renewable Energy, Solar & Wind Manufacturing worked example

Blade Defect Rate at 99% target defect rate: a worked example

This scenario runs the blade defect rate calculation on the strong side: 99% target defect rate, with every other input held at its documented default. Use it when blade defect rate in renewable energy, solar and wind manufacturing needs a clean rate and gap-to-target you can put on a tier board.

The inputs for this scenario

  • Blades with defects: 8 count (unchanged)
  • Blades inspected: 250 count (unchanged)
  • Target defect rate: 99 % (raised for this scenario; the documented default is 95)

Working through the calculation

  • Applying the documented formula (Blade defect rate = blade defect rate count ÷ total blade defect rate population × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 3.2 % for blade defect rate, the number this scenario is built around.
  • At this operating point the engine returns 95.8 points for blade defect rate gap to target.
  • At this operating point the engine returns 8 count for blade defect rate count.
  • At this operating point the engine returns 250 count for total blade defect rate population.

How this compares with the baseline

  • Against the tool's baseline example, where target defect rate sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
  • Use it in daily or weekly quality reviews, when auditing a process change, or when reporting first-pass yield to management. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Blade defect rate: 3.2 % (headline result)
  • Blade defect rate gap to target: 95.8 points
  • Blade defect rate count: 8 count
  • Total blade defect rate population: 250 count

Run it with your numbers

  • Every input above is editable in the live Blade Defect Rate calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.