Programmes and agreements / prg-gb-sge-bwrx300-fleet

SGE plan for a 14-unit BWRX-300 fleet at three UK sites

SGE announced on 1 July 2026 that it plans to build 14 GE Vernova Hitachi BWRX-300 reactors on three UK sites and has applied under the Advanced Nuclear Framework through SGE SMR UK Limited. SGE expected site selection in the first half of 2027, it has not named a site. Press reports linking the first site to Oldbury are disputed: GBE-N says it holds no record of SGE interest in acquiring the land.

Not a deployment project. SMR plans, agreements, studies and government programmes that are not (yet) a single deployment project. They are listed separately and are never counted as projects or reactors.

Type

Fleet agreement

Countries concerned

United Kingdom

Participants and roles

• Developer or vendor: SGE S.A. (SGE SMR UK Limited)
• Developer or vendor: GE Vernova Hitachi Nuclear Energy

Designs named

BWRX-300

Scale as stated

14 BWRX-300 units on three sites, first site to host six units, 4.2GW combined (as stated) · 14 units stated

Announced or first reported

1 Jul 2026

Status

Active
Application submitted under the UK Advanced Nuclear Framework, no site named by SGE, no licence, no government support agreed.

Confidence

medium

Last checked

2026-10-14 (record review date, not proof of current activity)

Related deployment projects

• No related deployment project is recorded here.

Sources

• SGE unveils plans for 4.2GW UK Small Modular Reactor fleet (company_primary, published 2 Jul 2026, accessed 2026-10-14)
• GBE-N has no record of SGE’s claimed interest in acquiring Oldbury site (reputable_press, published 14 Sep 2026, accessed 2026-10-14)
• Nuclear Reactors: Oldbury Power Station (UIN 2990) (government_primary, accessed 2026-10-14)