Audi and RWE are breaking new ground together to drive the energy revolution ahead – RWE has introduced an power storage facility on stream in Herdecke, Germany, that makes use of utilized lithium-ion batteries from Audi electric powered cars. With the enable of 60 battery units, the new style of storage facility on the website of RWE’s pumped-storage energy plant on Lake Hengstey will be in a position to temporarily retail outlet around 4.5 megawatt hrs of electricity.
The decommissioned batteries furnished for the challenge occur from Audi e-tron development automobiles. Following their initial daily life in the automobile, they continue to have a residual capacity of far more than 80 per cent. This tends to make these “second-existence batteries” excellent for use in stationary power storage techniques. Dependent on how they are utilized, these batteries still have up to ten decades of remaining service lifetime. In addition, they are considerably less costly than new cells. And that is what a 2nd lifetime is all about – the carbon emissions produced during battery creation are sustainably dispersed above two lifetimes (a single in the motor vehicle and a person as electrical energy storage).
Oliver Hoffmann, Member of the Board for Technical Growth of Audi AG, commented:
“Carbon-neutral mobility is Audi’s supreme purpose. We’re performing challenging to attain this bold goal. Our system to launch more than 20 all-electric powered products by 2025 are an important phase in this direction. But our aspirations go much outside of the vehicle, which is why we are advancing the growth of sustainable mobility by means of collaborations with partners from the vitality industry. This partnership with RWE is meant to show the possibilities that exist for the resource-helpful use of next-lifetime significant-voltage batteries and their intelligent integration into the energy grid of the long run. In addition, we are currently considering about the time just after this utilization section and are stepping up our attempts to be certain that batteries are recycled successfully,” mentioned Oliver Hoffmann, Member of the Board for Specialized Enhancement of Audi AG.
RWE has already developed a 160-sq.-meter corridor in lightweight design and style for the 60 battery modules, which weigh close to 700 kilograms, on the website of its pumped-storage energy plant in Herdecke. The installation of the battery programs inside of the corridor was completed in October. Individual parts have been introduced on stream starting in November.
RWE expects to get started marketing the storage ability of its next-life battery storage process in early 2022 – in the beginning to assistance the electrical power grid as part of frequency routine maintenance. Following that, the organization options to flexibly take a look at other marketing techniques.
Roger Miesen, CEO of RWE Technology SE, commented:
“Powerful battery storage plays an important position in the power revolution. Adaptable storage systems are essential to compensate for quick-term fluctuations in renewable energy and to stabilize the grid. Battery storage units are ideally suited for this goal. Jointly with Audi, in Herdecke we’re screening how conclude-of-lifestyle higher-voltage batteries from electrical vehicles behave as stationary power storage gadgets when related alongside one another. The continued use of these types of ‘second-life’ storage is a sustainable choice to manufacturer-new batteries. The encounter gained from this task will enable us determine the programs in which we can most cost-proficiently run this kind of battery programs.”
The findings from the reference storage facility in Herdecke will aid RWE construct and operate much larger storage amenities dependent on EV batteries in the foreseeable future. These services use an ground breaking technological innovation in which two modules are linked in sequence, escalating the working voltage and decreasing prices.