Energy reduction

CelSian uses a step-by-step approach that leads to optimized energy efficient operation of glass plants. Our experience has often shown that there is often “low hanging fruit” (easily implemented improvements). Picking this fruit results in a rapid effect on savings in energy and cost:


  • Benchmarking of CO2 emissions and specific energy consumption of glass furnaces
  • On site energy measurements and audits for selected furnaces and off-line energy balance calculations per furnace
  • Online energy balance monitoring for selected furnaces
  • Operational analysis, advice and support based on online monitored data
  • Optimizing process control systems on melters and forehearths with respect to stability, energy and glass quality
  • Recommendations for heat recovery and/or emission reduction systems
  • Furnace design optimization

Joost Laven

energy reduction

Finding new opportunities and propositions based on CelSian’s current expertise and to define our sustainability roadmap ''

Benchmarking CO2 emissions


The first step of our energy reduction approach delivers:

  • A determination & global ranking of the energy efficiency of your glass furnace(s)
  • An estimation of the realistic energy savings potential for your furnaces
  • A proposal and explanation of process based and/or technological solutions delivering energy saving


At the moment  our database contains energy and emission data of  more than 450 glass furnaces. You can compare the energy efficiency of your furnaces with the database. We take the following process conditions into account:

  • Cullet fraction
  • Ageing
  • Electric boosting
  • Pull rate


Based on normalized input data our database provides you with an apple to apple comparison. All data will be treated confidentially and anonymously.


Click here to learn more or register.

Energy balance measurements

We use energy balance measurements to determine the energy savings potential of your glass furnaces. Our calculations and conclusions used for implementation in optimized process conditions often result in 4 – 8 % energy reduction. To do this, we need to perform industrial measurements and collect process data.

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