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Mercedes EQS passes environmental audit
As the first model based on the electric architecture for large vehicles, the EQS 450+ has now passed the eco-validation audit, as the manufacturer announced. The so-called 360° environmental check provides detailed information on consumption, emissions, and life cycle assessment, as well as the use of renewable raw materials and recyclates. All environmentally relevant aspects of a vehicle model are to be investigated from the production of raw materials, through production and operation, to recycling at the end of the vehicle's life, evaluated with a life cycle assessment, and this extensive documentation is reviewed by independent experts. The production of the high-voltage battery and the external charging processes during operation are important factors here. In its model calculations, Mercedes-Benz assumes two different conditions:
- In the EU electricity mix scenario, the European electricity mix is considered for charging the high-voltage battery.
- In the renewable scenario, however, renewable energy is used for the production of battery cells and for charging during the usage phase.
Both scenarios for the EQS are based on a mileage of 300,000 kilometers.
The sustainability of the Mercedes flagship at a glance:
- The cobalt content in the cathodes of the EQS battery cells is ten percent.
- The EQS contains over 80 kilograms of components made partially from resource-conserving materials (recycled and renewable raw materials).
- With a drag coefficient (cw value) starting at 0.20, the EQS is currently the world's most aerodynamically efficient production car. Compared to an aerodynamically good electric car (cW value of 0.23), this offers an advantage in range of four (WLTP cycle) to five percent (Mercedes measurement long distance). Combined power consumption is expected to lie between 19.8-15.7 kWh/100 km.
- The roof of Factory 56, where the EQS is produced, is equipped with 12,000 photovoltaic modules. These have a maximum output of around 5,000 kWp and can cover about 30 percent of the factory's energy demand on average annually. Overall, Factory 56 reduces the required energy demand by 25 percent compared to other Mercedes-Benz assembly halls.
- Approximately 40 percent of the roof area of Factory 56 is greened, and recycled concrete was used for the first time in the head building. By 2022, a total of eight Mercedes-EQ electric vehicle series will be produced at seven locations on three continents.
- The floor coverings use a new yarn made from regenerated nylon. One ton of this yarn (brand name ECONYL) saves over 6.5 tons of CO2 compared to new material.
- After its use in the car, the batteries can have a second life: for example, in an energy storage system from Mercedes-Benz Energy.
- Together with its partners, the company has already introduced three large-scale storage units with a total of around 50 MWh of energy from automotive battery systems into the German power grid. The first second-life battery storage went online in October 2016 in Lünen, Westphalia.
- A large portion of the suppliers, accounting for around 90 percent of the annual procurement volume, intend to deliver only CO2-neutral produced parts in the future. They have stated their willingness in an Ambition Letter. By 2039, only production materials that are CO2-neutral at all levels of the value chain will be allowed to pass through Mercedes-Benz factory gates.
- As early as 2018, Mercedes-Benz began to create transparency in the complex cobalt supply chains for battery cells. Over 183 operations were identified and more than 60 audits conducted according to OECD (Organization for Economic Co-operation and Development) guidelines.
- The production of highly complex lithium-ion batteries at the Hedelfingen plant, part of the Mercedes-Benz Stuttgart-Untertürkheim site, will be CO2-neutral starting in 2022. As part of strategic partnerships, Mercedes-Benz has also agreed to procure CO2-neutral manufactured battery cells, beginning with the EQS.
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