Our people have a long experience in the aluminium industry, and have achieved, while working for Alusuisse, then Alcan, many successful results for smelter upgrade projects: in our track records, an average current increase of 31 kA per project!
For confidentiality reasons, we shall not display a full list of these projects. However, the graph below shows a successful amperage increase project that extended over many years.
Achieved in 2003 were:
Targeted in 2005 is 170 kA in the test cells.
The typical investement costs were
Note that our past projects concerned both pre-baked and Söderberg technologies.
The following table shows how profitable a successful current increase can be:
| current increase | 10 kA |
| number of cells | 400 |
| production increase | 11000 tpy |
| LME | 1400 US$/mt |
| cost | 1000 US$/mt |
| benefit (EBITDA) | 4.4 M US$/year |
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© 2005, 2007 Kan-nak SA.