Companies · Nuclear, fuel and SMR · data
Last Energy, Inc.
Profile
Last Energy develops the PWR-20, a 20 MWe factory-built pressurised-water microreactor sold under a build-own-operate model. Its PWR-5 pilot at the Texas A&M-RELLIS campus received DOE approval of its preliminary documented safety analysis in late May 2026 under the Reactor Pilot Program, with criticality targeted for summer 2026 (not confirmed as of 9 Oct 2026). In the UK it completed a key regulatory review for a four-unit plant at the former Llynfi power station in Wales (July 2025) and has announced a 30-unit project in Haskell County, Texas. Private; no market data apply.
Source: the SMR projects dataset (NucNet 29 May 2026; ANS 2 Jul 2026), 9 Oct 2026 · confidence mediumKey projects
| Project | Country | Stage | Note | Map |
|---|---|---|---|---|
| Last Energy PWR-5 pilot (scaled PWR-20) - Texas A&M-RELLIS campus, Bryan, Texas | USA | Under construction | Regulator stage as of 9 Oct 2026: PDSA approved by DOE late May 2026; final DSA submitted; building complete, critical components installed; criticality targeted summer 2026 pending DOE authorisation (not confirmed achieved as of 9 Oct 2026) | open on the map |
| Last Energy PWR-20 (4 units) - Former Llynfi power station, Maesteg, Bridgend, Wales | GBR | Pre-licensing | Regulator stage as of 9 Oct 2026: 'Key regulatory review' completed July 2025 (NucNet headline); no nuclear site licence application confirmed | open on the map |
Deals
No deal recorded for this company (as of 9 Oct 2026). All deals.
Documents
| Document | Type | Date |
|---|---|---|
| NucNet: US DOE approves PDSA for Last Energy pilot reactor at Texas university | News | 29 May 2026 |
Chart
TradingView symbol: n/a · private, unlisted
- Market cap, USD
- n/a · private, unlisted
- Market cap, local
- n/a · private, unlisted