EffizientNutzen – Data-based business models for cascade use and extended product use of electrical and electronic products


The new production of electrical and electronic products is currently often cheaper than repair, refurbishing or remanufacturing. In addition, shorten innovation cycles generate new customer needs. Despite the request of many people for the option to buy used equipment or repair solutions for products that are no longer guaranteed / warranted, even for high quality electrical and electronic products repair or refurbishment is usually not considered or for the layman even under instructions simply not possible. As a result, after a limited period of use, old products are replaced by new products and at best recycled material / energetically. This results in significant environmental impacts and resource losses, which would be avoided by a circulation based on optimized cascade use and extended product use. With long-term rising resource prices and decreasing resource reserves as well as an increased social environmental awareness, a longer product use becomes more and more important. Increasing digitalization can provide the necessary information and link the various actors.


Against this background, the aim of the collaborative project EffizientNutzen is to develop innovative, data-based business models for the extended use of products and cascade use as well as the targeted recovery in the end-of-life of electrical and electronic products. For this, (customer-) requirements for closed-loop economy concepts, repair and re-marketing strategies must be evaluated for their economic and ecological advantages and efficiently linked together. Repair as a service and the re-marketing of used products as part of product service systems play a central role in this. The task of the IWF is the derivative and combination of previously separate considered business management and production technology approaches to the design and evaluation of these business models.

Project Partners:

TU Clausthal Institute for Software and Systems Engineering (ISSE)
TU Braunschweig  Institute of Automotive Management and Industrial Production (AIP)
 Chair of Production and Logistics
Institute of Machine Tools and Prodution Technology (IWF)
Chair of Sustainable Manufacturing and Life Cycle Engineering
RITTEC Trade + Consulting GmbH & Co. KG
Robert Bosch GmbH, Automotive Aftermarket
Circular Economy Research GmbH
TEQPORT Services GmbH

Project duration: 07/2019 – 06/2022

Contact: Sina Rudolf, Steffen Blömeke, Mark Mennenga

Funding: Bundesministerium für Bildung und Forschung (BMBF)

  last changed 24.10.2019
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