The Mobility House collaborates with Renault to implement second-life car battery storage in France


For the first time in France’s power market, in summer 2021, technology startup The Mobility House has implemented electric car battery storage. The battery storage is made up of first and second-life batteries from Renault’s Zoe car model.
Renault’s Advanced Battery Storage continues to support the electricity storage initiative from The Mobility House. The new facility at Renault’s Douai plant in northern France is designed similarly to the storage facility TMH and Renault opened in Elverlingsen, North Rhine-Westphalia, in November 2020. One difference: in Elverlingsen, only new batteries were utilized (First Life), whereas in Douai, a mixture of new and Renault Zoe’s batteries were used (Second Life).
“Electric mobility offers new opportunities for the energy transition. At The Mobility House, we are seizing them. Smart charging and energy storage solutions. With Vehicle-to-Grid and stationary storage, we are launching a revolution in the world of energy and realizing our vision: a future without CO2 emissions,” says Thomas Raffeiner, Founder of TMH.
The Douai plant is not only important for electromobility because of its stationary storage. Douai is the centre of ElectriCity, in which Renault is combining its northern French plants into an electromobility production network. Among other things, the new Renault 5 will be built at the plant.
Previously, The Mobility House had teamed up with Nissan and several other industrial and local actors with the aim of powering the largest European energy storage system using second life and new electric vehicle batteries in a commercial building, inside Amsterdam’s Johan Cruijff Arena. The 3-megawatt storage system provides a more reliable and efficient energy supply with the equivalent of 148 Nissan LEAF batteries.


The goal of The Mobility House is to create a zero-emission energy and mobility future. Our technology platform unites the automotive and energy sectors. We integrate vehicle batteries into the power grid using intelligent charging, energy and storage solutions. This way, we promote the development of renewable energies, stabilize the power grid and make electric mobility more affordable. The technology company was founded in 2009 and operates globally from its Munich, Zurich and Sunnyvale (CA) sites, serving customers in over 10 countries. These include leading automotive manufacturers, fleet operators, installation companies, energy suppliers and electric car drivers. For more information, visit


Groupe Renault, Nissan Motor Company and Mitsubishi Motors represent the world’s largest automotive alliance. It is the longest-lasting and most productive cross-cultural partnership in the auto industry, whose member companies are focused on collaboration and maximizing synergies to boost competitiveness. This strategic alliance is among the industry leaders in zero-emission vehicles and is developing the latest advanced technologies, with plans to offer autonomous drive, connectivity features and services on a wide range of affordable vehicles.


Alliance Ventures is the strategic venture capital fund of Renault-Nissan-Mitsubishi, the world’s largest automotive alliance. The fund, launched in 2018 and co-located in Amsterdam, Paris and the Silicon-Valley, plans to invest to support open innovation. Alliance Ventures targets technology and business model innovation in new mobility, autonomous driving, connected services, EV & energy and enterprise 2.0. By drawing on expertise and business opportunities from across the world’s largest automotive alliance, the fund makes strategic investments at all start-up stages and incubates new automotive entrepreneurs at the cutting edge of next-generation systems for the automotive industry.