Wendeling: Fresh paint for climate protection

For paint shops, energy consumption plays an exceptionally large role – among other things because of the high heating requirements of the drying process. Wendeling, a bodywork and paint specialist company in Krefeld, uses numerous measures to show how climate protection based on energy efficiency measures also makes economic sense.

At Wendeling, climate protection is seen as a major global task to which an independent workshop can also make a contribution. The company continuously monitors the development of technical possibilities. In cooperation with Berufskolleg Rheydt-Mülfort für Technik vocational college, the pupils analysed the technical feasibility of various options for increasing energy efficiency, taking into account the cost/benefit ratio. On the basis of these results, the bodywork and paint shop reflected upon its own plans.

Climate protection objective:

  • installation of a battery storage unit
  • convincing other companies to follow suit

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Photo: Wendeling GmbH & Co. KG

Apart from the PV system on the roof, the operation looks just like thousands of others in Germany. But there is pioneering technology inside.

Efficiency in Energy Production and Consumption

The heart of the operation is a combined painting and drying cabin and a separate drying cabin. Energy consumption is not evenly spread out, but rather occurs in peaks during these processes. Now, the centre of the operational energy supply is a CHP with 20 kilowatts (kW) of electrical capacity and 41 kW of thermal capacity that is run on LPG. The cost of this system will be amortised in only four to five years. Due to the heavily fluctuating energy consumption, the CHP is supported by two water/heat buffer storage tanks. In addition to this, heat registers have been installed to heat process air for the paint and drying cabins, which are fed into by the CHP.

Therefore, over 60 per cent of the total power and heat requirements are self-generated and consumed. The rest is to a large extent generated with the help of PV modules on the roof of the company's own paint shop. The lighting has also been converted to LED. The annual energy savings through this immediate measure comes to a total of around 15,000 kilowatt hours (kWh), which corresponds to the requirements of five average German households.

From Private Household to the Company

Always on the lookout for further possibilities for action, the proprietor Joachim Matyssek tries out anything that might also be of use to the company at home. He currently drives a plug-in hybrid car that can also function as electricity storage via a bidirectional connection. A storage battery is also in private use. Using an electricity storage unit, load peaks can be balanced and the already high level of internal use can be further increased in the direction of 100 per cent. The latter is also a target for the company in 2016.

Persuasive Efforts throughout the Entire Industry

Willingness to try out new technology goes hand in hand with intensive communication. Using magazine articles, presentations and documentation on its own homepage, other companies are encouraged to follow suit. Joachim Matyssek also used his position as a member of the board of Lackiererinnung Essen (Essen Painters' Guild) to persuade others. Energy efficiency should not be an exclusive competitive advantage but instead should benefit the entire industry – for the good of the climate too.

Photo: Private

"With operational energy-saving measures, we are sustainably promoting both climate protection and the competitiveness of our company. Therefore, we are happy to be a good example to others and try to encourage others to follow suit!"

Joachim Matyssek, Proprietor Wendeling GmbH & Co.

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