Category: Elestor

IPKW - Poortgebouw

Elestor moves to ‘Industry Park Kleefse Waard’ (IPKW)

In the first week of January 2018, Elestor will move to its new premises on ‘Industry Park Kleefse Waard’ (IPKW) in the city of Arnhem. “The direct motivation for this move was our growing need for more laboratory space”, says Guido Dalessi, Elestor’s CEO. “The choice for IPKW was almost too obvious, and then I am not only referring to the building itself, but also to the (personal) support of IPKW and the proactive attitude in thinking along with us in order to create the required conditions for a longer period of time.”







Battery cluster 

Kevin Rijke, Managing Director of IPKW: “Already during the past years we noted an increase of activities around storage. This initially took off with several startups, who have now entered the scale up phase, to eventually become mature companies. We are ready to invest in the present cluster of companies, because we believe that storage, together with hydrogen technology, is one of the spearheads putting Arnhem clearly on the map. These technologies offer solutions for the most important energy issue we will have to deal with in the near future.”

IPKW already has a lot of in-house knowledge and works closely together with Han University of Applied Sciences (HAN), amongst others in the field of clean mobility. As such the Clean Mobility Center had been established with a group of companies and educational institutes. Rijke: “It is a logical next step to create a large project around the subject of storage, and this is why we interconnect parties as well as physically bring these parties together on our industry park. Companies located all over Arnhem and on the industry park are very enthusiastic about forming such cluster, with a central hub under one roof. A party like Elestor, already located in Arnhem and who we consider the flagship in its field, specifically chose for this cluster at IPKW.”

Dalessi: “The concentration of parties, all active in storage and/or hydrogen, creates a clear synergistic effect on technology developments and places the ‘storage technology flag’ on IPKW in Arnhem. With our move, our mission to contribute to the energy transition will be realized by building large scale hydrogen flow batteries on IPKW, as the first in Europe.”

Mutual goal
The cluster does not limit itself to the boundaries of IPKW and several connections exist with companies like DNV GL and DEKRA. These kinds of cooperation are necessary, as Rijke emphasizes. “Different parties work on different technologies, but the essence is the same for all: How do we accomplish sustainable and efficient energy storage ? With this mutual goal, we also hope that test and certification companies will join us in Arnhem. Only together we can make huge progress and develop this cluster into an Energy Storage Expertise Center.”

Elestor BV and ITMGroup cooperating for scaling up HBr-flow-battery

Elestor BV and ITMGroup cooperating for scaling up HBr flow battery

Amsterdam, October 25 – On the first day of InnoEnergy’s annual event, The Business Booster, Elestor BV signed an agreement with the company ITM Group to jointly enter a scale-up program of Elestor’s HBr Flow Battery. Initially another GEN2 pilot system will be installed, followed by a number of expansion steps of 50 kW each, to build a storage system with a power of 400 kW and a capacity of 1 MWh.

The agreement was signed by Mrs. Hester Kuypers, board member of ITMGroup, thereby formally pushing the button for the cooperation to start. Apart from the installation of a large hydrogen bromine flow battery system, the scope of the cooperation includes joint projects with research institutes and/or universities.

“As ITMGroup we have taken several steps to be a sustainable company”, says Mrs. Hester Kuypers. “With the installation of this energy storage system we can store the power our approximately 1800 solar panels deliver. Thanks to this innovation, as a company we can now truly lower our CO2 emissions. We hope this will inspire many companies.”

“We are truly delighted to join forces with ITMGroup, known as a company with a true ‘can do’ mentality. The strategy to adopt and implement innovative technologies is part of the company’s DNA, not only in their core business as high-tech machine developer, but also when it comes to energy management of their facilities worldwide. And this attitude is exactly what the world needs to really make the energy transition happen” commented Elestor’s CEO, Guido Dalessi.


About ITMGroup
ITMGroup is a collective of innovative companies. The companies of the ITMGroup deliver worldwide machinery and services to ensure better processes, improve production efficiency and grow businesses. ITMGroup is a family owned company, with its roots in the tobacco industry. Today ITMGroup explores also other industries. More information about ITMGroup can be found on

© 2017 Fraunhofer Institut für Chemische Technologie ICT

International research network “FlowCamp” aims to revolutionize energy storage by developing the next generation of redox-flow batteries

Partners in the FlowCamp network at the project kick-off meeting in September 2017: Fraunhofer ICT (DE), Elestor BV (NL), Bar Ilan University (IL), Hungarian Academy of Science (HU), CNRS (FR), JenaBatteries GmbH (DE), Amer-Sil S.A. (LU), Zürcher Hochschule für Angewandte Wissenschaft (CH), University of Chemistry and Technology, Prague (CZ), University of Stuttgart (DE)
Pfinztal, 22.09.2017 (PresseBox) – Renewable energy sources like wind turbines and photovoltaics need large-scale energy storage systems to balance out fluctuations in energy generation. One of the most promising solutions is redox-flow batteries. These systems store energy electrochemically, within liquid electrolytes that can be kept in tanks until the energy is required.

Redox-flow batteries are efficient (>75%), safe, and have a longer service life than conventional batteries such as lithium ion. Different combinations of electrolytes offer a range of advantages in terms of higher power or capacity and environmental compatibility. However, to fully exploit the possibilities, research is needed into materials (membranes, electrodes, electrolytes, catalysts and sealing materials) for the new battery systems.

Coordinated by the Fraunhofer Institute for Chemical Technology, and funded by the European Union’s Marie-Sklodowska-Curie programme, in the research network “FlowCamp” (MSCA-ITN-2017- 765289), 15 PhD students will develop materials for three next-generation redox-flow battery systems: hydrogen-bromine, aqueous organic and zinc-air flow battery systems. The team will also carry out simulation and modelling to guide the development and increase power output. Prototypes developed in the project will be tested using the cutting-edge facilities of the German-funded (19 million €) RedoxWind campus at Fraunhofer ICT.

Besides advancing the development of the new systems, FlowCamp will fulfil another important role: the combination of multiple disciplines (including electrochemistry, material science and engineering / system design) is essential to develop optimal battery systems, but at present few researchers have the necessary overview. The 15 PhD students in FlowCamp, who will start work in mid-2018, will gain a unique skill set through theoretical and practical work covering every aspect of system development, as well as training in transferable skills such as project management, which will prepare them for their future careers in the expanding field of energy storage.

The network offers the chance for outstanding graduates with the appropriate qualifications to participate in an international project with industrial and academic partners from Germany, the Netherlands, Israel, Hungary, France, Luxembourg, Switzerland and the Czech Republic. For more information about the project and the open PhD positions, please contact the project coordinators at the Fraunhofer Institute for Chemical Technology (ICT), Germany.

© 2017 Fraunhofer Institut für Chemische Technologie ICT


Award for Best Technical Development in Energy Storage

On May 10 & 11, 2017, the annual IDTechEx Europe event was held in Berlin, Germany, where the latest emerging technologies in various technology fields were presented. The event, attended by over 3,000 visitors, brings together different players in the value chain, from material & technology developers to integrators to end-users, providing insights on forthcoming technologies, material selection, market trends and latest products.

The event offered a combination of Masterclasses, Conference and Exhibition. One of this year’s conference topics was Energy Storage, assessing the most exciting battery technology developments from world-leading companies, start-ups and research institutes. A unique selection of the main available battery chemistries being investigated and deployed were showcased. Elestor was invited to present on the subject ‘Cost Leadership with HBr Flow Battery Technology’.

During the award ceremony on Wednesday night, Elestor’s CEO, Guido Dalessi, received from Dr. Fanny Barde (Toyota Motor Europe) the prestigious IDTechEx award for the ‘Best Technical Development in Energy Storage’. Dalessi: “After receiving several Dutch awards in 2016, we are very pleased to be recognized internationally by winning this important award in Energy Storage. It’s a great achievement and compliment for the Elestor team!

The jury was formed by Jonas Deitschun MSc (Fraunhofer IFAM), Dr. Fanny Barde (Toyota Motor Europe), and Dr. Giuseppe Antonio Elia (TU Berlin), commenting: “This company is betting on a utility-scale stationary storage system that does not require a hydrogen compressor, thereby enabling lower LCoS than its competition.





Official start of Elestor’s HBr technology pilot at Witteveen+Bos, Deventer

On Monday, November 7, 2016, the first pilot of Elestor’s Hydrogen Bromine Flow Battery (HBFB), operating under real life conditions has been officially started in Deventer, the Netherlands. The consortium, consisting of Elestor, Witteveen+Bos, Energy research Centre of the Netherlands (ECN) and the HAN University of Applied Sciences (HAN), investigates with this pilot the optimal way of applying this storage technology on a large scale. The pilot is a first in Europa.

Witteveen+Bos facilitates the pilot: The storage system is installed at one of their office buildings in Deventer and is connected to a set of innovative solar panels. These panels have been developed by ECN, based on their Back Contact (BC)-technology. In contrary to conventional solar panels, these BC modules are only interconnected on the rear side, resulting in less shadow effects, a more efficient use of active area, lower production costs (higher yields) and a much more aesthetic design. HAN University has taken care of system integration and power electronics subjects of the project.
Furthermore, Witteveen+Bos, being a specialist in this field, has taken the lead in the definition of safety procedures and in obtaining formal approvals from the Dutch authorities.

During the ceremony on November 7th, Karin Sluis, Managing Director of Witteveen+Bos, emphasized on the importance of the joined effort as made by all consortium partners: “In our projects, we apply 6 sustainable design principles, based on the by the United Nations defined ‘Sustainable Development Targets’ “says Karin Sluis. “This Flow Battery pilot is a beautiful example of how we can jointly accomplish these targets”. After an introduction of the working principles and features of the Flow Battery by Wiebrand Kout, CTO of Elestor, and a lecture about the innovative Back Contact technology by Nico Dekker, Senior Advisor at ECN, alderman Frits Rorink of the city of Deventer underlined the importance of this pilot for the city.
At the end of the presentations, the pilot was started symbolically with a joint push on the start button, illuminated by an nice firework act.