Refrigerated transport systems manufacturer ECOOLTEC Grosskopf GmbH has appointed Holger Dörre as its new Chief Technology Officer (CTO), effective from July 2025.
The mechanical engineer has many years of experience in the automotive and supplier industry as well as a manager in transport refrigeration.
Prior to joining ECOOLTEC, Dörre was Managing Director Technology & Production at Liebherr Transportation Systems, where he was responsible for the development and production of heating, ventilation and air conditioning systems (HVAC systems), hydraulic actuators and dampers for track vehicles and buses, as well as modular transport refrigeration applications.
Before his role at Liebherr, Dörre was Head of Development at Frigoblock.
“As an experienced manager at group and medium-sized companies in the HVAC industry, Holger Dörre not only has extensive technical expertise, but also strong social skills,” said ECOOLTEC CEO, Henning Altebäumer.
“This makes him a great asset to ECOOLTEC as CTO. I am very much looking forward to working with him to further develop ECOOLTEC and our innovative technology.”
Altebäumer and Dörre worked closely together while at Frigoblock, where they pioneered electrically powered and environmentally friendly transport refrigeration systems under the leadership of Peter Großkopf.
“ECOOLTEC is a young company and has the character of an agile start-up. I can make a big difference here and continue to promote sustainability in transport refrigeration,” said Holger Dörre.
“To this end, I will contribute my experience from the field of refrigeration applications at ECOOLTEC.
“Until now I have developed purely electrically powered refrigeration systems for track vehicles powered by natural refrigerants with fully hermetic circuits.”
Dörre noted there were many market opportunities for ECOOLTEC’s transport refrigeration systems.
“ECOOLTEC’s technology is unique in the heavy-duty commercial vehicle segment and is very well suited for certain areas of application, such as demanding distribution,” he said.
“By utilising natural refrigerants with negligible greenhouse gas potential, the ECOOLTEC technology is sustainable and future-proof.
“At the same time, the high efficiency of the refrigeration process and the minimal service cost enable all fleet operators to reduce their carbon footprint, as well as the energy cost of operating their fleet.”
A major development of ECOOLTEC is its technology that facilitates an F-gas-free supply chain.
The company’s refrigeration systems can be operated electrically from the truck engine, via their in-house high-performance alternator, a battery, or a separate power alternator and therefore do not require an integrated diesel engine.
Unlike widely used diesel refrigeration machines, the ECOOLTEC unit produces neither local pollutant nor CO2 emissions in battery operation, and up to 98 per cent fewer pollutant emissions via the alternator drive.
The technological highlight of this system is the use of sustainable refrigerants.
Instead of the fluorinated refrigerants (hydrofluorocarbons) R452A and R410A, which are predominantly used in transport refrigeration, ECOOLTEC relies on natural refrigerants with GWP values of 3 and 1, respectively.
Hydrocarbons are also characterised by the high energy efficiency of the refrigeration process, meaning that ECOOLTEC refrigeration systems have an enormous refrigeration capacity, in terms of size and weight to meet the extreme temperature safety demands in food distribution.
As a result, the ECOOLTEC refrigeration system requires 60 per cent less fuel and causes 80 per cent less CO2 emissions than a conventional system for the same cooling capacity powered by a stand-alone diesel engine.
Read more about ECOOLTEC’s growth in Europe.
