Graphite, Anode & Battery Materials Processing worked example

Calcination Load with calcination furnace connected load of 800 kW: a worked example

Push calcination furnace connected load up to 800 kW and the picture changes. This example computes every intermediate figure at that operating point. Use it when furnace throughput, residence time, calcination temperature, or heat-treatment route changes need a clear energy and cost-per-kg estimate.

The inputs for this scenario

  • Calcination furnace connected load: 800 kW (raised for this scenario; the documented default is 320)
  • Calcination residence runtime: 14 hr (unchanged)
  • Blended electricity rate: 0.11 $ / kWh (unchanged)
  • Calcined material processed: 900 kg (unchanged)

Working through the calculation

  • Applying the documented formula (Calcination energy cost = calcination furnace load × calcination residence runtime × blended electricity rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 11,200 kWh for calcination energy used, the number this scenario is built around.
  • At this operating point the engine returns 1,232 $ for calcination energy cost.
  • At this operating point the engine returns 1.37 $ / piece for calcination energy cost per kg.
  • At this operating point the engine returns 88 $ / hr for hourly calcination energy cost.

How this compares with the baseline

  • Against the tool's baseline example, where calcination furnace connected load sits at 320 kW and the headline result is 4,480 kWh, this scenario comes in 150% above the baseline at 11,200 kWh.
  • It computes the kWh drawn by a calcination furnace over a run, multiplies by your blended electricity rate for total cost, and divides by kilograms processed to give energy cost per kg. 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

  • Calcination energy used: 11,200 kWh (headline result)
  • Calcination energy cost: 1,232 $
  • Calcination energy cost per kg: 1.37 $ / piece
  • Hourly calcination energy cost: 88 $ / hr

Run it with your numbers

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

Last reviewed 2026-05-12.