Glass Container & Bottle Manufacturing worked example

Energy per Ton with equivalent furnace energy load of 9,600 kW: a worked example

This scenario runs the energy per ton calculation on the strong side: equivalent furnace energy load of 9,600 kW, with every other input held at its documented default. Use it when operations, furnace, or finance teams need to compare energy intensity by furnace, color, campaign, pull rate, or energy contract.

The inputs for this scenario

  • Equivalent furnace energy load: 9,600 kW (raised for this scenario; the documented default is 3,850)
  • Energy measurement runtime: 24 hr (unchanged)
  • Blended energy rate: 0.09 $ / kWh (unchanged)
  • Glass tons processed: 460 tons (unchanged)

Working through the calculation

  • Applying the documented formula (Total furnace energy cost = equivalent furnace energy load × energy measurement runtime × blended energy rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 19,584 $ / ton for total furnace energy cost, the number this scenario is built around.
  • At this operating point the engine returns 230,400 kWh for measured furnace energy use.
  • At this operating point the engine returns 42.57 $ / piece for energy cost per ton.
  • At this operating point the engine returns 816 $ / hr for hourly furnace energy cost.

How this compares with the baseline

  • Against the tool's baseline example, where equivalent furnace energy load sits at 3,850 kW and the headline result is 7,854 $ / ton, this scenario comes in 149% above the baseline at 19,584 $ / ton.
  • Use it for daily or campaign energy tracking, to size the savings from a furnace upgrade, or to expose the per-ton penalty of running below pull rate. 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

  • Total furnace energy cost: 19,584 $ / ton (headline result)
  • Measured furnace energy use: 230,400 kWh
  • Energy cost per ton: 42.57 $ / piece
  • Hourly furnace energy cost: 816 $ / hr

Run it with your numbers

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

Last reviewed 2026-05-12.