Practical test of cheap electricity storage

Friday October 9, 2015 13:31

Storing sustainably-generated electricity must become less expensive. Only then will we be closer to transitioning to a sustainable power supply. Elestor Electricity Storage has presented a promising concept: the hydrogen bromide flow battery. Engineering firm Witteveen+Bos, the HAN University of Applied Sciences and ECN will collaborate on a practical test next year.

In the transition to sustainable energy supply, the need for large-scale electricity storage is evident. However, well-known storage technologies are not economically viable. “For this reason, we are delighted that Elestor Electricity Storage has developed the hydrogen bromide flow battery,” says project leader Nico Dekker of ECN. “What makes this battery special is that Elestor claims that the associated costs are very low: € 0.05 per kilowatt hour cycle. Large-scale storage is only attractive at 7 cents or less. Furthermore, in this battery's concept, power and energy are separate which allows it to be used for a wider range of purposes than other batteries.” 

Practical testing
The development of the new battery is still in the experimental phase. According to Dekker: “In order to ensure that the concept will function well in practice, it should be tested now under realistic conditions. We at ECN would gladly participate. This would enable us to accelerate the development of innovations and stimulate sustainable applications.” In addition to its knowledge, ECN will also provide solar panels that generate sustainable energy to be stored in the batteries if the supply ever exceeds the demand. All parties – the business community, the manufacturer, students and a research institute – will work together on the practical test. 

Showcase in Deventer
Testing of the hydrogen bromide flow battery will commence in November 2015 in the Witteveen+Bos building in Deventer. The office will be remodelled and likely become the engineering firm's showcase, where work can be carried out on sustainable technological innovations in collaboration with partners. The battery is connected to the building's installations and charging facilities for electric cars. The large-scale use of the battery in the built environment and the industrial sector will also be investigated in cooperation with financials experts. “This development could signify a step forwards for the energy storage requirements of both building owners and grid operators,” says Dekker.

Would you like to know more about the latest developments in the field of storage technology or about the practical test in Deventer? Please contact Nico Dekker of ECN. He will be happy to tell you more. 

Category: Oktober