Renewable Energy, Solar & Wind Manufacturing worked example

Renewable Material Price Variance at 69% share of volume exposed to price move: a worked example

Push share of volume exposed to price move up to 69% and the picture changes. This example computes every intermediate figure at that operating point. A procurement team gauging the cost impact of a polysilicon or steel price swing on an open production run.

The inputs for this scenario

  • Renewable material volume purchased: 120,000 kg (unchanged)
  • Price change per kilogram: 0.85 $/kg (unchanged)
  • Share of volume exposed to price move: 69 % (raised for this scenario; the documented default is 60)
  • Fixed re-sourcing / qualification cost: 4,000 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Price variance = volume x price change per unit x exposed share% + re-sourcing cost) to the inputs above produces each figure below.
  • At this operating point the engine returns 74,380 $ for total renewable material price variance cost, the number this scenario is built around.
  • At this operating point the engine returns 0.62 $ / piece for renewable material price variance cost per unit.
  • At this operating point the engine returns 70,380 $ for variable renewable material price variance cost.
  • At this operating point the engine returns 4,000 $ for fixed renewable material price variance adder.

How this compares with the baseline

  • Against the tool's baseline example, where share of volume exposed to price move sits at 60% and the headline result is 65,200 $, this scenario comes in 14.08% above the baseline at 74,380 $.
  • It computes the total dollar price variance on a renewable input as volume times the per-kilogram price change times the exposed share, plus a fixed re-sourcing cost, and divides by volume for a per-unit figure. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Total renewable material price variance cost: 74,380 $ (headline result)
  • Renewable material price variance cost per unit: 0.62 $ / piece
  • Variable renewable material price variance cost: 70,380 $
  • Fixed renewable material price variance adder: 4,000 $

Run it with your numbers

  • Every input above is editable in the live Renewable Material Price Variance calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.