ACC Gigafactory Second Production Block Targets 2027 Start

ACC Schedules Second Gigafactory Production Block for 2027

On October 12, Automotive Cells Company (ACC) announced at the Paris Motor Show that its second production block, with a capacity of 12.9 GWh, is scheduled to begin production in 2027. The additional capacity is intended to supply electric cars from Mercedes-Benz Group. The announcement outlines a planned expansion of ACC's battery manufacturing operations and identifies Mercedes-Benz Group vehicles as the intended application for the output. The source does not specify the production block's exact commissioning date, its annual output beyond the stated capacity, or the number of vehicles it could support. The planned 2027 start remains the central timeline disclosed by the company.

ACC Showcases Its Five-Millionth Lithium-Ion Cell

At the same event, ACC showcased its five-millionth lithium-ion cell produced at its gigafactory in Billy-Berclau / Douvrin. The milestone highlights the facility's accumulated cell production and accompanied the announcement of the second production block's planned start. The available information does not state when the first cell was produced, how long the facility took to reach five million cells, or the total installed production capacity of the existing operation. The milestone nevertheless provides a concrete production figure alongside ACC's future capacity plans. Both developments were presented at the Paris Motor Show, linking the company's current manufacturing output with its announced production expansion.

Stellantis Displays Battery Technology for Eight Electric Vehicle Models

The Stellantis Group displayed one of its batteries in a cutaway vehicle at the Paris Motor Show. According to the announcement, cells and modules produced by ACC power eight electric vehicle models marketed by Stellantis. The named vehicles are the Peugeot E-3008, Peugeot E-5008, Jeep Compass, Lancia Gamma, DS N° 7, DS N° 8, Citroën C5 Aircross, and Opel Grandland. This list illustrates the range of vehicle programs associated with ACC's cells and modules across several Stellantis brands. The source does not provide individual battery capacities, vehicle-specific cell configurations, or production volumes for these eight models.

ACC's Battery Supply Connections With Mercedes-Benz and Stellantis

The announcement identifies two important applications for ACC's battery manufacturing activities. The planned second production block, with 12.9 GWh of capacity and a scheduled 2027 production start, is intended to power Mercedes-Benz Group electric cars. Separately, ACC cells and modules already power the eight electric vehicle models identified by Stellantis Group. These details distinguish the announced future capacity allocation from the vehicle applications described for existing ACC products. The source does not specify whether the second production block will supply Stellantis models, how output will be divided among customers, or whether additional automakers will receive batteries from the new block.

Industry Impact & Outlook

ACC's planned 12.9 GWh production block points to additional battery manufacturing capacity intended for Mercedes-Benz Group electric cars from 2027, while the five-millionth-cell milestone documents output already achieved at Billy-Berclau / Douvrin. The eight Stellantis models listed in the announcement also demonstrate the role of ACC cells and modules across multiple vehicle brands. For automakers, the practical significance of these developments will depend on the production block reaching its scheduled start and on battery output matching vehicle manufacturing needs. The announcement does not establish final commissioning, future customer allocations, or additional capacity commitments, so those details remain unconfirmed.

Frequently Asked Questions

What did Automotive Cells Company announce at the Paris Motor Show?
Automotive Cells Company announced that its second production block, with a capacity of 12.9 GWh, is scheduled to begin production in 2027 to supply Mercedes-Benz Group electric cars. The announcement was made on October 12 at the Paris Motor Show. ACC also showcased its five-millionth lithium-ion cell produced at its Billy-Berclau / Douvrin gigafactory. These developments highlight both a planned manufacturing expansion and a reported production milestone. The announcement did not specify an exact commissioning date for the second block or provide additional output forecasts.

How much capacity will ACC's second production block provide?
ACC's second production block is planned with a capacity of 12.9 GWh and is scheduled to begin production in 2027. The announced output is intended to power electric cars from Mercedes-Benz Group. The source does not clarify whether the capacity figure represents annual production, nor does it provide a projected vehicle-equivalent volume or a detailed commissioning schedule. The 2027 production start is therefore the stated target rather than confirmation that the block is already operating. Further production and allocation details were not included in the announcement.

What production milestone did ACC showcase?
ACC showcased its five-millionth lithium-ion cell produced at its gigafactory in Billy-Berclau / Douvrin during the Paris Motor Show. The milestone was presented alongside the announcement of the second production block, which is scheduled to begin production in 2027. The figure documents a cumulative cell-production achievement, but the source does not identify the date of the first cell, the time required to reach five million cells, or the facility's total installed capacity. It therefore provides a specific production milestone without establishing a broader manufacturing rate or future output forecast.

Which electric vehicles use ACC cells and modules through Stellantis?
ACC cells and modules power eight electric vehicle models marketed by Stellantis Group, according to the announcement accompanying the Paris Motor Show display. The named models are the Peugeot E-3008, Peugeot E-5008, Jeep Compass, Lancia Gamma, DS N° 7, DS N° 8, Citroën C5 Aircross, and Opel Grandland. Stellantis displayed one of its batteries in a cutaway vehicle at the event. The source does not provide individual battery specifications, model-by-model supply volumes, or details about the allocation of cells and modules among these vehicles.

Which automaker is expected to receive output from ACC's second production block?
The planned second production block is intended to supply electric cars from Mercedes-Benz Group when production is scheduled to begin in 2027. ACC announced the 12.9 GWh capacity block at the Paris Motor Show on October 12. Separately, the company supplies cells and modules used in eight electric vehicle models marketed by Stellantis Group. The announcement does not establish that the second block will supply those Stellantis models or identify other future customers. Its stated purpose is to provide battery production capacity for Mercedes-Benz Group electric cars.

Where is ACC's gigafactory located?
ACC showcased its five-millionth lithium-ion cell produced at its gigafactory in Billy-Berclau / Douvrin, the location identified in the announcement. The milestone was presented at the Paris Motor Show alongside the company's plan for a second production block with 12.9 GWh of capacity. The source associates the existing cell-production milestone with the Billy-Berclau / Douvrin facility but does not provide a detailed site description, facility layout, or the location of the planned second block beyond its connection to ACC's production plans. The second block is scheduled to begin production in 2027.