The UK's biggest EV battery gigafactory has shelved its expansion plans in Sunderland due to stalled talks with Jaguar Land Rover (JLR), signaling a broader slowdown in the electric vehicle transition. Chinese-owned AESC, which produces batteries for Nissan at its adjacent plant, has delayed ramp-up because of lower-than-expected demand and the lack of a JLR supply deal.
Why the Expansion Was Shelved
AESC's Sunderland gigafactory currently operates two manufacturing lines but has held off installing a third line intended for JLR. Sources indicate that negotiations between AESC and JLR have stalled, forcing AESC to reassess its growth strategy. This development comes as the UK government considers cutting electric car sales targets further, adding pressure to the EV supply chain.
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AESC and Nissan's Relationship
AESC has long been the primary battery supplier for Nissan's Leaf and other models. However, Nissan's own EV production has not met expectations, reducing demand for AESC's batteries. The lack of a diversified customer base, particularly the failed JLR deal, has left AESC vulnerable to market fluctuations.
JLR's Alternative Plans
JLR, Britain's largest automotive employer, was close to a supply agreement with AESC last year to secure cells until its sister company Agratas completes its own gigafactory in Somerset. However, JLR has since reached agreements with other battery suppliers, and Agratas' construction delays may push production back beyond 2027. This has left AESC without a major new client.
Impact on the EV Supply Chain
The shelved expansion is a stark reminder of the challenges facing battery manufacturers in the UK and Europe. Several European battery projects have gone bankrupt, while others have scaled back plans amid fierce competition from Chinese giants like CATL and BYD. The UK's ambition to become a leader in EV battery production now faces significant headwinds.

| Company | Location | Status | Key Client |
|---|---|---|---|
| AESC | Sunderland, UK | Expansion shelved | Nissan |
| Agratas | Somerset, UK | Under construction | JLR (planned) |
| CATL | Various (global) | Expanding | Multiple |
| BYD | China | Dominant | In-house |
Key Takeaways
- AESC's Sunderland gigafactory has paused expansion due to stalled JLR talks and weak Nissan demand.
- JLR has secured alternative battery suppliers, reducing reliance on AESC.
- UK government may cut EV sales targets, further dampening industry growth.
- European battery makers face intense competition from Chinese firms.
- Agratas' Somerset plant faces construction delays, complicating JLR's supply chain.
FAQ
Why did AESC shelve its expansion?
AESC shelved expansion because of lower-than-expected demand from Nissan and the failure to secure a supply deal with Jaguar Land Rover, which would have justified a third production line.
What does this mean for the UK's EV battery industry?
It signals a slowdown in the UK's transition to electric vehicles, as battery manufacturers struggle with weak demand and competition from Chinese players. The government may also cut EV sales targets, further impacting the supply chain.
Will JLR still get batteries from AESC?
No, JLR has reached agreements with other battery suppliers and is building its own gigafactory through Agratas, though that plant faces delays. The talks with AESC have stalled, making a deal unlikely in the near term.
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