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  • Writer's pictureKhuất Thảo Nguyên

Circular Economy models case study series - Groupe Renault


Groupe Renault, a prominent French automotive company, boasts a rich history spanning over a century. Founded in 1899 by Louis Renault, the company has evolved into a global leader in the automobile industry. Throughout its journey, Renault has pioneered several significant innovations, shaping the automotive landscape.

Renault has consistently demonstrated a commitment to innovation and sustainability. Notably, the company has been at the forefront of electric vehicle (EV) development, with the introduction of models like the Renault Zoe contributing to the widespread adoption of EVs. Additionally, Renault's alliance with Nissan and Mitsubishi has formed one of the largest automotive collaborations globally, facilitating resource sharing and collaborative advancements. With a strong emphasis on design, performance, and safety, Renault has earned a distinguished reputation, reflected in numerous awards and accolades. The company's diverse vehicle lineup, ranging from compact cars to commercial vehicles, showcases its versatility and ability to cater to a broad consumer base. Guided by a legacy of innovation, Groupe Renault continues to drive towards a sustainable and technologically advanced future in the ever-evolving automotive realm. Renault is a pioneer of the circular economy in the automotive industry and was one of the founding partners of the Ellen MacArthur Foundation.

Groupe Renault (2021)


The aim of Groupe Renault’s circular activities is to extend the life of vehicles and components, and keep materials in use, thereby reducing the use of virgin materials. It has achieved this in different parts of the manufacturing process and across different brands. For example, by:

  • Remanufacturing vehicle components such as gear boxes and turbo compressors

  • Increasing recycled plastic content

  • Creating a second life for electric batteries.

In late 2020, Groupe Renault increased their ambition level and established ‘RE: Factory’, Europe’s first dedicated circular economy factory for vehicles and mobility.

The Re-Factory is located in Flins about 40km west of Paris and will be the new hub for Groupe Renault’s circular economy activities. The 237 hectare factory complex will be developed between 2021 and 2024 in collaboration with a large network of partners and will support circular economy innovation across the full life-cycle of vehicles. The top-line ambition for Re-Factory is to create mobility solutions with a negative CO2 balance by 2030, while at the same time generating employment for 3,000 people.

Re-Factory’s circular economy activity areas The complex will comprise an ecosystem of four interconnected and complementary areas: 1. Extend the life of vehicles - ‘Re-trofit’: Recondition vehicles, converting thermic vehicles to less carbon intense versions including a specialist 3D-printing service for the manufacturing of rare parts. 2. Solutions for the production, storage and management of green energies - ‘Re-energy’: Optimize the first life of batteries, give used batteries a second life and manage end of life batteries and the exploration of new energy sources such as hydrogen. 3. Optimize the management of resources to support the ecosystem - ‘Re-cycle’: Dismantling of end of life vehicles, the remanufacturing of parts and the reuse and recycling of materials. 4. Promote innovation and knowledge sharing - ‘Re-start’: Accelerating research and disseminating knowledge about the circular economy.

Groupe Renault (2021)


To meet the Paris Climate change agreement, industry needs to consider its use of materials as well as energy. Groupe Renault’s Choisy-le-Roi factory, located about half an hour from where the historic agreement was signed, provides a great example of how a more circular management of materials can both reduce emissions associated with vehicle manufacturing, and create profits and value to customers.

What is remanufacturing?

It involves restoring an engine part that has been reclaimed from an old car, to a condition that is as close to its original state and characteristics as possible. The production of remanufactured automobile parts began in 1949 in Choisy-le-Roi, since then, the factory has been steadily diversifying its output to include injection pumps, gearboxes, injectors, and turbo compressors.

How it works?

The remanufacturing operation relies on a reverse logistics ecosystem of partner companies (see infographic) that collects the old parts, dismantles and checks conformity, reassembles, and then sells on as genuine and guaranteed parts within the Renault sales network.

Renault's remanufacturing ecosystem

Groupe Renault (2021)

The parts are 40% less expensive than brand new parts, but undergo the same quality control test as new parts. Since 2012, the volume of engine parts that have been given a second life through remanufacturing is quite significant:

  • Gearboxes > 112, 000, 60% of components renovated.

  • Engines > 73, 000, 60 to 70% of components renovated.

  • Turbos > 50, 000, 40% of components renovated.

  • Injectors > 94, 000 (since 2010)


Renault customers benefit not only from cheaper warranted parts, but are also able to prolong the use of their vehicle, by accessing spare parts which might otherwise have been discontinued. For the company, the approach is good for business. Remanufacturing activities generated revenues of nearly €120 million in 2019.

Perhaps more importantly, remanufacturing supports a skilled workforce, and indeed this is one of the main constraints for further expansion of remanufacturing. More remanufacturing, provides a good rationale for upskilling the workforce and providing increased job satisfaction to staff. Remanufacturing also supports a local economy, as parts should be refurbished in the area that they were generated, or the carbon benefits could be negated through transportation.

The environmental benefits are significant. Typical savings from the production of a remanufactured part are:

  • 80% less energy

  • 88% less water

  • 92% less chemical products

  • 70% less waste

On a global scale, the energy that could be saved as a result of remanufacturing could be equivalent to the amount of electricity produced by eight nuclear power stations. In 2021, after 71 years of continuous operation in Choisy-le-Roi, Renault’s remanufacturing hub will be transferred to the Re-factory in Flins.



Groupe Renault (2021). About us.



I started Sustainability House with the goal of offering readers a glimpse into my thoughts and experiences. What started out as weekly posts have evolved into a dynamic site packed with information about various topics that are near and dear to me. Take some time to explore the blog and see for yourself what makes you curious and eager.


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