Living spare parts store: Daimler makes room for its battery modules

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Daimler makes sure it has enough room for its future battery modules announcing the construction of a new battery storage facility in Herrenhausen this year.

The project created in partnership with enercity and ACCUMOTIVE (Daimler subsidiary) sees that around 3000 of the battery modules, determined for the current smart electric drive vehicle fleet, are being pooled to create a stationary spare parts center at the enercity site.

With a storage capacity totalling 15 MWh, the installation is one of the largest in Europe. After completion, the energy storage facility will be marketed on the German primary balancing energy market.

2012 saw the launch of the third-generation smart fortwo electric drive and since then it has been convincing customers around the world. The next generation of the electric city car is now at the ready. But what actually happens should the battery become unusable? Automotive manufacturers are of course prepared for this eventuality and have suitable replacements available.

In terms of efficient use of resources, partners Daimler, ACCUMOTIVE and enercity are now treading a unique path. Through the “living storage” of replacement batteries, they are creating an attractive business case that, in this form, can only be achieved together by an automotive manufacturer and a power supply company.

By marketing the storage capacity on the German market for primary balancing power (PRL), the business model makes an important contribution to stabilisation of the power grid and to the economic efficiency of electromobility. In the event of increasing fluctuations in electricity feed-in from renewable energies such as wind and solar energy, such storage facilities help to ensure optimum settling of a mains frequency that has to be kept constant.

With their storage capacity, they balance the energy fluctuations with practically no losses – a task that is currently undertaken predominantly by fast-turning turbines at the fossil power plants. The partners will start work on constructing the battery storage facility this year. After completion, grid-connected operation will be possible without interruption. enercity is responsible for marketing the storage facility on the primary balancing power market.