ECA Group and TechnicAtome partner on next-gen French nuclear subs
Rendering of the third-generation SNLE 3G SSBN for the French Navy. (Photo: Naval Group)
ECA Group and TechnicAtome are poised to implement a partnership to produce onboard electrical systems for the SNLE 3G programme to develop the third generation of French Navy nuclear-powered ballistic missile submarines (SSBNs).
The two companies announced an agreement on 4 October.
‘This is the beginning of a long partnership. We will provide power conversion solutions adapted to a demanding and constrained environment,’ said Dominique Giannoni, CEO of ECA Group.
SNLE 3G boats will replace the SNLE NG Triomphant class between the 2030s and 2040s. The programme was launched in February 2021 and will see Naval Group act as the main prime contractor in a joint venture with TechnicAtome.
Shephard Defence Insight estimates that the programme to continue the French at-sea nuclear deterrent will cost more than $35 billion.
The SNLE 3G partnership is part of a wider collaboration between TechnicAtome and ECA Group.
The latter already equips Suffren-class nuclear attack submarines in service and under construction, as well as the Triomphant-class SSBNs.
The reactors aboard nuclear-powered French submarines, including the future SNLE 3G boats, are designed by TechnicAtome.
Related Programmes in Defence Insight
Related Equipment in Defence Insight
More from Naval Warfare
-
SAHA 2026: Aselsan seeks to replicate Turkey’s UAV success at sea
Turkey’s defence electronics company has unveiled two new uncrewed naval systems at SAHA 2026 – but the harder test will be converting it into an export success.
-
Canada boosts Arctic presence as CCGS Donjek prepares for sea trials this year
CCGS Donjek is currently being prepared to start testing and be handed over to the Canadian Coast Guard in the second half of 2026.
-
US Navy to accelerate the replenishment of SM-6 stocks as demand continues to surge
The Naval Sea Systems Command exercised a US$335 million modification to a contract with RTX Raytheon to support increasing the production of Standard Missiles 6 by 2030. Shephard spoke with the company president about how the company has scaled to meet demand.
-
How the Hormuz mine threat exposes potential Baltic MCM shortfalls
Ageing Baltic vessels and an absence of active minehunting vessel programmes in the region have been put under the spotlight in the recent conflict.