Renault, Vitesco To Develop Power Electronics for Electric and Hybrid Powertrains

Boulogne-Billancourt (France) and Regensburg (Germany) – Renault Group and Vitesco Technologies this week announced a strategic partnership for the joint development and production of power electronics in a so-called “One Box” for electric and hybrid powertrains. This partnership will allow both companies to leverage their strengths in order to create innovative, efficient, and sustainable solutions for the automotive industry.

Under this agreement, both partners will utilize their respective strengths to develop a cutting-edge power electronics concept. Renault Group’s electric and hybrid expertise will be complemented by Vitesco Technologies’ market-leading technologies and processes.

The goal of the “One Box” unit is to bring all electronic components together in one housing, including the DC-DC converter, on-board charger (OBC) and inverter. Renault Group and Vitesco Technologies will work together to define the products and assembly processes for this unit, incorporating the latest technologies to ensure optimal performance and competitiveness.

The One Box concept will enable Renault to develop more compact and lightweight vehicles in the future, with increased passenger space and comfort. The configurations and assembly of components will be adapted to different types of electric and hybrid powertrains, allowing for greater efficiency and flexibility in production. Development teams will be mostly based in Toulouse, where they can leverage the latest technologies and expertise.

The development of this “One Box” is planned to equip electric and hybrid vehicles in Renault’s high-voltage core range from 2026 onwards. With this new partnership, Renault Group is extending its control over the electrical value chain by integrating this unique power electronics “all-in-one” system, co-developed in-house. This will eventually allow Renault Group to assemble 100 percent electric vehicles in its industrial sites in France.

As part of this partnership, Renault Group will provide Vitesco Technologies with a contract for the power electronics of Renault’s hybrid vehicles. In addition, Vitesco Technologies will supply to the Renault Group a “High Voltage Box”, which combines the DC/DC converter and charger, for battery electric vehicles as of 2025.


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