Porsche Leipzig uses used batteries for energy storage.

Batteries Second Life Porsche Factory in Leipzig Stores Electricity in Used Batteries

2024-08-08 From Thomas Günnel Thomas Günnel | Translated by AI 2 min Reading Time

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Porsche has built a battery storage facility in its Leipzig (Germany) plant using batteries from Taycan test vehicles. It is expected to participate in the electricity market by the end of the year.

Porsche has built a battery storage using used batteries at its Leipzig plant in eastern part of Germany.(Image: Porsche) — Porsche has built a battery storage using used batteries at its Leipzig plant in eastern part of Germany.
(Image: Porsche)

Porsche has connected used batteries from the Taycan into a stationary energy storage at its Leipzig/Germany, plant. More precisely: from 4,400 battery modules, which are divided into four battery containers. The storage thus provides five megawatts with ten megawatt hours of energy content.

The batteries come from test vehicles and "were installed in the energy storage without technical changes," Porsche shares. The storage can be operated briefly with up to 20 percent overload.

The four battery strings are connected to an inverter and a transformer in a medium-voltage system. Porsche estimates the life of the system to be "more than ten years". Individual battery modules can be replaced individually.

The stationary storage provides five megawatts with ten megawatt hours of energy content.
(Image:Porsche)

Porsche partially generates the energy for the storage with its own solar system. It has a peak output of 9.4 megawatts. The storage can smooth out adjacent peak loads. The so-called "peak shaving" can reduce grid fees—and reduce the necessary scope of upstream networks.

Battery storage in the electricity market

"Of course, this is about environmental aspects and the core topic of energy supply. In addition, however, it was also important to us to take a pioneering role with the storage," describes Alwin Schmid. He heads the electrical engineering department at Porsche and initiated the project.

It started with a feasibility study. The sports car manufacturer created this together with the Westsachsen University of Applied Sciences. "In this unique model project, we were able to combine various goals. Such as peak load capping, optimization of self-consumption, and simultaneous participation in the energy market," Schmid outlines the advantages of the energy storage.

One of about 4,400 battery modules in the storage in Leipzig: From left: Ruven Weichert, Managing Director of Porsche Leipzig GmbH; Alwin Schmid, Head of Electrical Engineering Porsche AG; Jonathan Dietrich, Project Manager Porsche AG Battery Storage Factory Leipzig; and Gerd Rupp, Chairman of the Management Board of Porsche Leipzig GmbH.
(Image:Porsche)

This means: Porsche wants to integrate the stationary battery storage into the control energy market with all forms of marketing by the end of the year. At the same time, it is supposed to act as a network stabilizer for the upstream distribution networks. Porsche has been operating its own production in their German factories Zuffenhausen, Leipzig, and Weissach, CO₂ neutral and with renewable energy, since 2021. Since 2017, the car manufacturer exclusively uses electricity from renewable energy sources. Accoring to Porsche the fatories in Zuffenhausen and Leipzig get their energy from natural electricity and balance sheet biomethane. The Leipzig location also gets district heating from biomass. If the battery storage project goes well, other locations of the car manufacturer could get similar systems.

Porsche is bringing the electric Macan to the streets. (Image:Porsche)

Porsche significantly increases the performance of the Taycan. (Image:Porsche)

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