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TMH introduces storage from Zoe batteries to the electricity market

For the first time, the e-mobility and energy specialist is marketing a stationary storage unit built from Renault ZOE batteries on France's energy and performance markets. The storage unit installed at the Douai plant is also expected to participate in primary control power and short-term trading.

Makes itself useful for the electricity market: For the first time, TMH has been able to commercialize discarded car batteries as energy storage on the electricity market. | Photo: TMH
Makes itself useful for the electricity market: For the first time, TMH has been able to commercialize discarded car batteries as energy storage on the electricity market. | Photo: TMH
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Johannes Reichel

The Munich-based e-mobility tech company The Mobility House (TMH) has commercially marketed a storage system composed of first- and second-life Renault ZOE electric car batteries for the first time in the French electricity market. The project "Advanced Battery Storage" is being realized in cooperation with Renault Group’s Mobilize division, Banque des Territoires, and the Ecological Transport Modernization Fund managed by Demeter. Like the storage systems made from vehicle batteries already installed in Germany and the Netherlands, the French storage system, which is installed at the Renault manufacturing plant in Douai in northern France, participates in short-term trading as well as the primary control reserve market, according to the provider. Douai is now set to become an important location. Renault recently announced plans to build a "Gigafactory" for batteries there. The goal is to support the production of high-tech, competitive, and low-carbon batteries to optimally serve the European e-mobility market, the provider says.

Together with partners, they are opening up another revenue source for electric car batteries with the capacity market. Additionally, TMH sees it as an important contribution to a stable energy supply. Furthermore, they are laying the technological foundation for grid-friendly and intelligent integration of electric car batteries into the energy system. In this way, even mobile storage (i.e., electric cars at charging stations, also known as Vehicle to Grid / V2G) can contribute to grid stability and earn money, the provider promotes.

Intelligent Integration of Battery Packs

When implementing the project, the Munich-based company relies on its proprietary technology, which has been in use since 2016. The basis is the intelligent charging and energy management system ChargePilot and the underlying EV Aggregation Platform. This technology is specifically designed for the efficient provision of energy and power applications and can integrate a variety of battery packs into the electricity market, regardless of whether they are mobile or stationary, first-life or second-life batteries.

"Since 2014, we have been successfully working on the integration and marketing of electric car batteries in the electricity market and are already active in various European markets as well as the USA," explains Robert Hienz, CEO of The Mobility House.

With the integration of a storage system in the capacity market, as now in France, they are once again expanding their technology spectrum with an innovative application. The intelligent control of battery storage is an important step for the integration of electric vehicles into the power grid, which also enables active participation in the French capacity market, confirms Yasmine Assef, Program Director, Energy Services at Mobilize of the Renault Group.

"Through such projects, we are unlocking incredible future potentials that not only drive the energy transition but also contribute to electricity grid stability and generate revenue with vehicle batteries. A win-win situation," says Assef.

Economic Energy Transition Thanks to Battery Storage

Battery storage has already become an essential element in the electricity market to ensure grid stability while enabling an economic energy transition. The replacement of conventional power plants in key system services such as primary control reserve and capacity markets forms a central component, advocates the provider. Batteries as intermediate storage can ensure that in times of high availability of renewable energies, more and more reliance can be placed on conventional power plants. The 4.7 MW storage system at the Renault plant in Douai has been prequalified with 4 MW for participation in the primary control reserve market. This means that TMH can now provide a total of 33 MW of primary control reserve with electric car batteries in Germany, the Netherlands, and France.

Translated automatically from German.
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