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Unformatted text preview: dership, along with facilities electrical engineers, we defined
the problem as wasted process electricity in the area, and set a primary goal of reducing process
electricity use of CCA without disrupting the production schedule and keeping expenses low. Having
only aggregate information of the existing electricity usage of the area on the substation level (which
included electricity used by processes, support and other areas), we did not specify a reduction target, though it was generally agreed that a 5% annual reduction would be satisfactory, while 10% would be
excellent. In terms of absolute amounts, that translates into a reduction of about 7,395kWh/week
($1,035/week) or 14,790 kWh/week ($2,070/week) for the area under study. During this stage, we
also defined the production cycle of CCA to be a week, so most analysis is reported in terms of
The definition of "wasted process electricity", especially in the context of lean manufacturing,
deserves a brief discussion. Of the seven types of muda, or "deadl...
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This document was uploaded on 03/03/2014 for the course ADMIN 1 at Universidad Nacional de Colombia.
- Spring '14