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The buildings on the Scharnhausen factory premises with a floor

space of around 66,000 square metres and 1,200 employees need

to be supplied with energy In the new building alone – with its four

levels, it is as big as seven football pitches – there are 9,000 lights,

125 kilometres of cables, 11,500 sprinkler heads, 70 kilometres of

data cables, 1,300 smoke detectors and 28 kilometres of pipes for

heating and cooling The air in the whole building is replaced every

24 minutes That equates to one million cubic metres of fresh air

every hour

Buildings and production

In order to keep energy consumption to a minimum, the Festo

experts took innovative paths when planning the factory and build-

ing: all the departments involved were closely interlinked during

the planning phase They use a joint communication platform,

which can be used to make sure that the energy interaction

between building equipment and production system is taken into

account as soon as planning begins As processes are often mutu-

ally dependent, the energy has to be distributed sensibly By con-

tinually adjusting the generation process to the actual consump-

tion situation, the necessary energy can be provided very effi-


Scientifically balanced

Based on corresponding preliminary investigations, the specialists

developed different energy concepts Decisions were made accord-

ing to efficiency and depreciation calculations. Researchers at the

Technische Universität Braunschweig (Technical University of

Braunschweig) supported this process by carrying out life cycle

and profitability analyses for the individual concepts. They also

analysed the flows of energy with the aid of so-called Sankey dia-

grams, which show the overall energy balance of a factory building

Future scenarios were successfully integrated and the effects of

individual measures put into concrete figures.

Energy efficiency planned and put into practice

Energy utilisation already optimised through innovative

factory planning: buildings and production processes

are networked in terms of energy

Energy data

• Around 20 per cent of electricity from own

power generation

• Around 1,500 tonnes of carbon dioxide

saved each year

• Heat recovered from a third of the energy used

for generating compressed air


Festo AG & Co KG