Full Breakdown
CATL Begins Trial Production at Debrecen Battery Cell Plant
By Drooid · · How we work
Core Event: Trial Production Launch
On September 22, 2026 Contemporary Amperex Technology Ltd (CATL) started trial production at its newly built battery-cell facility in Debrecen, Hungary. The first two production lines are operating under a trial-run regime that will commission, optimise and validate equipment and processes before full-scale manufacturing begins. Hungarian authorities confirmed that all pre-conditions and regulatory requirements have been satisfied, clearing the way for the trial phase.
Background & Context
The Debrecen plant was announced in August 2022 as CATL’s second European battery factory. Construction of the initial cell-building began in summer 2023, and the site was equipped with advanced production technology by spring 2026. An occupancy permit was issued in August 2026 after a series of inspections by the Hajdú-Bihar County Government Office. Prior to the permit, the project faced local protests over environmental and health concerns, as well as a temporary suspension of certain operations earlier in the year due to occupational-safety worries about nickel exposure.
Data & Statistics
- Planned annual capacity: 100 GWh, enough to power roughly 2 million electric cars with a 500 km (311 mi) range.
- Investment cost: €7.3 billion (US$8.35 billion).
- Battery modules produced at the site since autumn 2024: 537,000 units.
- Designed output of the plant: 100 GWh per year, making it CATL’s largest manufacturing base outside China.
- The plant’s capacity represents about 31 % of CATL’s total revenue in the first half of the current year, after a 54.8 % year-on-year increase in sales outside mainland China.
Official Statements & Responses
CATL said it will continue close cooperation with the Hungarian government and local authorities, emphasizing that employee health, safety and environmental factors will be continuously monitored and results submitted proactively to regulators. Hungarian officials, following on-site inspections, confirmed that the deficiencies identified earlier in the permitting process have been fully addressed, clearing the path for the trial run and eventual series production.
Conflicting Reports & Gaps
While Hungarian inspectors have reported that all identified deficiencies have been resolved, other commentary notes that the state authorities have not yet granted a final building permit, yet CATL is proceeding with machinery installation. Additionally, reports highlight ongoing concerns about nickel exposure; three further inspections after the initial suspension found the site “in order,” but the broader regulatory status of the emissions-control systems remains unclear. These divergent accounts illustrate a gap between formal approvals and the practical ability of the plant to operate fully.
Verbatim Quotes
- “The Hungarian plant is of strategic importance to CATL’s internationalisation, as it can secure massive orders from global carmakers,” — Gao Shen, an independent analyst in Shanghai
What’s Next
CATL indicated that mass production will commence once the trial-phase equipment and manufacturing processes are fully optimised and validated. The company’s statements suggest that the Debrecen facility is intended to become a strategic hub for European automakers such as BMW and Volkswagen, securing large orders from global carmakers as the plant ramps up to its full 100 GWh capacity.