Press Releases

Last Energy Receives DOE Approval of PWR-5 Preliminary Documented Safety Analysis

The U.S. Department of Energy (DOE) has approved the company’s Preliminary Documented Safety Analysis (PDSA) for its PWR-5 pilot reactor at Texas A&M–RELLIS. Last Energy now continues to advance its Documented Safety Analysis, the final safety analysis needed to secure DOE authorization in the reactor pilot program.

May 2026
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Last Energy Announces Oversubscribed $100 Million Series C

Last Energy has closed an oversubscribed Series C of more than $100 million led by the Astera Institute, with participation from JAM Fund, Gigafund, The Haskell Company, AE Ventures, Ultranative, Galaxy Interactive, and Woori Technology Co., Ltd., among others.
December 2025
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Last Energy Partners With Texas A&M to Build Microreactor at RELLIS Campus

Last Energy and the Texas A&M University System today announced plans for a microreactor pilot project at Texas A&M-RELLIS, an applied research and advanced technology campus. The project will feature Last Energy’s PWR-5, a microreactor design physically identical to the company’s commercial product, the PWR-20, scaled to 5 MW of electrical output. The PWR-5 will demonstrate safe, low-power criticality and the ability to generate electricity for commercial output.

October 2025
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Last Energy Partners With DP World To Bring Micro-Nuclear Power To London Gateway

Last Energy and DP World have signed an agreement to develop the world’s first port-centric micro-nuclear power plant at London Gateway. The project will invest £80 million to power DP World’s £1 billion expansion while showcasing UK-US leadership in nuclear energy deployment and long-term energy security.
September 2025
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Last Energy Completes Preliminary Design Review Milestone In United Kingdom

Last Energy's power plant design, the PWR-20, has successfully completed a Preliminary Design Review (PDR), becoming the first nuclear developer to do so in the United Kingdom. The review was conducted by the UK’s nuclear regulators: the Office for Nuclear Regulation (ONR), the Environment Agency, and Natural Resources Wales (NRW).
July 2025
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Last Energy Announces Plan to Deploy 30 Microreactors in Texas

Last Energy, a micro-nuclear technology developer, announced today plans to build 30 microreactors in Haskell County, Texas to serve American data center customers across the state.
February 2025
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Last Energy Enters Nuclear Site Licensing in United Kingdom

Last Energy, a Washington, D.C.-based micro-nuclear technology developer, announced today confirmation from the Office for Nuclear Regulation (ONR), the United Kingdom’s nuclear regulator, that it has formally entered the nuclear site licensing (NSL) process for its plans to develop four 20 MWe microreactors in South Wales.
February 2025
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Last Energy Receives Grid Connection Offer For South Wales Microreactors

Last Energy's Prosiect Egni Glan Llynfi to accept grid connection offer, advancing transmission ability.
January 2025
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Export-Import Bank of United States Issues LOI to Last Energy

Last Energy, an American cleantech startup aiming to become the first mass-manufacturer of 20 megawatt nuclear microreactors, announced today that it received a LOI from the Export-Import Bank of the United States (EXIM).
December 2024
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Last Energy Selected by US Department of Energy for Clean Technology Accelerator Program

Nuclear startup accepted into DOE in-kind voucher program, partners with Oak Ridge National Laboratory for engineering support.
October 2024
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Last Energy Announces Project In South Wales, To Build Four Micro-Nuclear Plants To Decarbonise Local Industry

Last Energy's Prosiect Egni Glan Llynfi to create £300M economic investment and 100 local jobs, requiring no public funding.
October 2024
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Last Energy Selected by European Commission for Nuclear Industrial Alliance

Last Energy's Project Quantum, one of nine selected for European Industrial Alliance on Small Modular Reactors, to receive technical support from working groups.
October 2024
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Last Energy Enters Authorization Phase With Nuclear Regulator in Romania

Following confirmation from National Commission for Nuclear Activities Control, Last Energy completes pre-authorization phase of Romanian nuclear licensing.
October 2024
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Last Energy Announces $40M Series B, Accelerates Deployment of First Microreactor

The round, closed earlier this year, brings total capital raised to $64 million since the company’s founding in 2019.
August 2024
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Last Energy Announces NATO Micro-Nuclear Energy Partnership

Last Energy announced a partnership with the NATO Energy Security Centre of Excellence (ENSEC COE) to jointly research military applications for micro-nuclear power technologies and explore opportunities for future deployment on NATO military installations.
June 2024
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