BMW 2012 Annual Report Download - page 210

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BMW plant Leipzig
20
Energy supply efficiency controlling project. In the final analysis, a vehicle plant is little
more
than a highly active organism that works and breathes, with some periods of rest and other
periods where it operates at full tilt. The trick is to adjust its energy supply accordingly.
Intelligent control systems developed at the Leipzig plant ensure that weather and production
data, electricity prices and many other factors are evaluated to manage production and
energy supply. This not only saves five million kilowatt hours of electricity per year, but
also
enables the power required to be used more efficiently and purchased more cheaply.
A plant only operates at full capacity in certain phases.
In partial load operation, the new, more ef cient heat
pumps (right) are fully adequate.
Similar energy efficiency projects are also in progress
at the Munich Research and Innovation Centre (FIZ)
and the BMW Group’s Steyr plant.
5,000,