Latest Last Energy News & Updates

See the latest news and media coverage for Last Energy. We track all announcements, press releases, and industry mentions in real time, all in one place.

Last Energy

Nuclear power plant developer, owner, and operator

lastenergy.com

Headquarters: Austin, United States
Founded year: 2019
Company type: Private company
Number of employees: 80–200
Industry: Independent Power Producers

Last updated October 7

Latest news about Last Energy

In short: Last Energy won DOE approval for its PWR-5 safety analysis and raised $100 million in Series C funding.

Company announcements

May 28 Last Energy

Last Energy receives DOE approval of PWR-5 safety analysis

The approval advances the microreactor toward criticality under the DOE Reactor Pilot Program, with construction nearing completion.

May 21 Last Energy

Last Energy begins PWR-5 deployment

The microreactor at Texas A&M RELLIS has reactor pits complete and building construction underway.

December 16, 2025 Last Energy

Last Energy announces oversubscribed $100 million Series C

The round, led by Astera Institute, funds the DOE pilot reactor and PWR-20 commercialization. It positions the company for production power plants and Texas manufacturing expansion.

October 15, 2025 Last Energy

Last Energy partners with Texas A&M on microreactor

They will deploy a PWR-5 5 MWe microreactor at the RELLIS campus, with land lease, full-core fuel, DOE Other Transaction Agreement, and licensing submissions underway.

Media coverage

October 7 World Nuclear News

Last Energy's Texas micro-modular reactor clears safety analysis

The Department of Energy's approval of the Documented Safety Analysis clears Last Energy's planned pilot reactor at Texas A&M-RELLIS to move into the readiness review...

June 11 Rigzone

Antares Successfully Tests Nuclear Microreactor | Rigzone

The March 23, 2025 order aims to ... 2026 to help grow the U.S.' nuclear energy capacity from about 100 gigawatts (GW) to 400 GW...

May 5 Community Impact Newspaper

Last Energy withdraws plans for proposed nuclear energy project in Bryan

A proposed advanced nuclear energy project expected to go before Bryan City Council on May 5 will no longer move forward after the developer withdrew...

January 7 Nei Magazine

Last Energy funded for PWR-5 pilot

Last Energy has secured $100m Series C funding to advance its PWR-5 microreactor pilot at Texas A&M-RELLIS, targeting criticality by mid-2026.

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