District Energy & Thermal Network Equipment worked example

Rework Cost at 92% expected rework share: a worked example in district energy & thermal network equipment

What does the result look like when expected rework share reaches 92%? The full calculation is worked below with real intermediate numbers. Use it when rework cost in district energy and thermal network equipment is being put through a district energy and thermal network equipment weighted-cost review.

The inputs for this scenario

  • Rework items or affected packages: 100 items (unchanged)
  • Rework cost per item: 45 $ / item (unchanged)
  • Expected rework share: 92 % (raised for this scenario; the documented default is 80)
  • Fixed retest or remobilization cost: 250 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Expected variable rework cost = rework items or affected packages × rework cost per item × expected rework share) to the inputs above produces each figure below.
  • At this operating point the engine returns 4,390 $ for total rework cost, the number this scenario is built around.
  • At this operating point the engine returns 43.9 $ / piece for rework cost per affected item.
  • At this operating point the engine returns 4,140 $ for expected variable rework cost.
  • At this operating point the engine returns 250 $ for fixed retest or remobilization cost.

How this compares with the baseline

  • Against the tool's baseline example, where expected rework share sits at 80% and the headline result is 3,850 $, this scenario comes in 14.03% above the baseline at 4,390 $.
  • A figure at this level is achievable when expected rework share is genuinely sustained, not just peaked for a shift. It uses an average rework cost and a flat rework rate; a clustered defect that forces re-excavation of a buried run can cost far more than an average-based estimate suggests.

Results at a glance

  • Total rework cost: 4,390 $ (headline result)
  • Rework cost per affected item: 43.9 $ / piece
  • Expected variable rework cost: 4,140 $
  • Fixed retest or remobilization cost: 250 $

Run it with your numbers

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

Last reviewed 2026-05-12.