Cooll is part of the GROHW hydrogen group

In the GROHW partnership, Cooll will test its super-efficiency boiler in practice with green hydrogen as an energy carrier.

A collective of 10 local companies and (knowledge) institutions are working on the energy transition with green hydrogen as the most important building block. All parties are jointly developing a total hydrogen chain, from production to use, on a local scale.


Funding from the European-EU REACT-EU program makes it possible to realize a practical demonstration where various components are brought together into one green hydrogen system. For Cooll, this collaboration and financing offers the perfect opportunity to demonstrate the heat pump in practice with green hydrogen as an energy carrier.


The Hydrogen chain

Various components are brought together into one green hydrogen system at the pilot location, which is located on the site of the Gasfabriek in Deventer.

The system consists of solar panels linked to an electrolyser. This electrolyser converts the green electricity into green hydrogen, oxygen and heat, whereby the hydrogen is stored as an energy buffer. During the winter of 2022-2023, Cooll’s heat pumps will heat the office building on the Gasfabriek site with the hydrogen generated.

In the summer of 2023, hydrogen will be supplied for the pilot with a hydrogen burner at AsfaltNU in Deventer. In collaboration with Hanzenet, Cooll will conduct research into the settings of the Cooll heat pump so that optimum efficiency can also be achieved with hydrogen.

The first activities for the pilot have already started.


GROHW, which stands for GReen Oxygen, Hydrogen and Wasteheat, is an initiative of Witteveen+Bos, Saxion University of Applied Sciences, HanzeNet, Brandeniers, Rabobank, Asfaltcentrale Stedendriehoek (ACS), Vos Transport, Van Dorp Installaties, MTSA Technopower, HVE, Cooll and HAN University of Applied Sciences. The objective is to arrive at a scalable design in the form of a blueprint, which can also be used in other industrial areas in combination with wind and solar parks.


With the REACT-EU programme, Europe is helping the provinces of Overijssel and Gelderland to invest in a rapid economic recovery from COVID-19. Activities aimed at green, digital and resilient recovery of the economy can receive subsidies for, among other things, the testing and demonstration of innovative technologies, services or processes.

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