Co-founder of Texas Nuclear Alliance (February 2025) — coalition aimed at making "Texas the nuclear capital of the world." Two full-scale prototypes built in Texas with local manufacturing partners (June 2023 9-module prototype + March 2024 full nuclear island prototype). Series C proceeds will scale Texas manufacturing presence to support the global pipeline. Strategic positioning: Texas state legislative environment (recent nuclear-supportive legislation), ERCOT grid flexibility, data center cluster proximity, and skilled energy workforce.
As of February 2025: Last Energy disclosed 80 commercial agreements across Europe — 40 of which serve data centers as the largest customer segment. Includes: Romania (RATEN/Mioveni demonstrator, March 2022 announcement); Poland (Enea Group June 2022, Legnica Special Economic Zone 10 reactors July 2022); March 2023 announcement of four deals worth $18.9B for 34 reactors in Europe. Last Energy has European subsidiaries in Romania, Poland, UK to support local development.
Announced February 28, 2025. Last Energy's largest project to date. 30 PWR-20 microreactors = 600 MW. Power delivery via mix of private wire and grid transmission. ERCOT grid connection filed. Preparing NRC Early Site Permit (ESP) application. Site geographically positioned for the Dallas-Fort Worth data center cluster (which is projected to require additional 43 GW). Adjacent context: OpenAI Stargate / Oracle data center development announced for Abilene, ~1 hour south of Last Energy's Haskell County site. Critical: project financed entirely with private capital — no government plant-development financing.
October 2024 — announced £300m / $391m plan to deploy four PWR-20 reactors at the former Llynfi Coal Power Station site. **HISTORIC**: UK Office for Nuclear Regulation (ONR) admitted Last Energy's South Wales project into nuclear site licensing in February 2025 — making it the first new commercial nuclear power reactor site to enter UK licensing since the Torness Advanced Gas Cooled Reactor plant in Scotland in 1978 (47 years). Preliminary design review completed June 2025. Site-licensing decision target: December 2027. Backed by EXIM Bank $103.7M LOI (Dec 2024).
Last Energy's flagship product — 20 MWe / 80 MWth single-loop PWR. Distinguishing engineering philosophy: deliberately conservative, off-the-shelf components, no exotic materials. 300°C continuous output. Few dozen rectangular factory-made modules. Construction timeline: 6 to 24 months. Footprint fits inside a football field. Two full-scale prototypes built in Texas: 9-module prototype (June 2023), full-scale nuclear island prototype (March 2024). KEY STRUCTURAL ADVANTAGE: uses standard 4.95% LEU PWR fuel — no HALEU dependency, no exotic fuel supply chain risk. Sized for industrial co-location: data centers, manufacturers, steel mills.
First US deployment of Last Energy technology. Selected as one of four firms for Texas A&M's Energy Proving Ground program (alongside Aalo, Terrestrial, and one other). PWR-5 is a 5 MWe scaled-down variant of the commercial PWR-20. Initial phase: low-power criticality testing. Later phases: grid electricity generation. Land lease secured at RELLIS site. Testing expected to begin mid-2026.
Foundational seed round circa 2020. Specific details limited; established Last Energy's Washington D.C. base and initial European subsidiary structure.
US Export-Import Bank issued letter of intent for up to $103.7M in debt financing to support delivery of Last Energy's first microreactor in Wales. Notable as one of the few EXIM commitments in advanced nuclear. NOT government R&D funding — Last Energy's policy is to avoid government plant-development financing — this is export credit support for international deployment.
Series C round closed December 16, 2025; oversubscribed at over $100M. Led by Astera Institute. Funds: complete PWR-5 pilot reactor at Texas A&M RELLIS, advance commercialization of PWR-20, parallel UK regulatory + commercial positioning, scale Texas manufacturing presence. Notable: Galaxy Interactive participation signals crypto/digital-assets capital flowing into nuclear; Woori Technology brings Korean strategic backing.