Office For Nuclear Regulation (ONR) Confirms Entry Into Licensing Process For Company’s South Wales Project
Last Energy Becomes First SMR Developer Admitted Into UK Site Licensing
London, 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.
ONR’s notice, effective 1 January, 2025, follows seven months of early engagement with Last Energy and is a critical accelerator for the company’s deployment progress in the UK. Last Energy’s entry into licensing also underscores the viability of privately-financed projects, and puts the UK on a near-term path toward its first ever commercial nuclear microreactor. In December 2024, the Export-Import Bank of the United States (EXIM) issued Last Energy a $103.7 million (USD) LOI confirming the Bank’s willingness to finance end-to-end delivery of the company’s first microreactor in South Wales.
“We are pleased to officially enter site licensing with ONR, as we continue to make tangible progress toward the delivery of our first microreactor in Wales,” said Michael Jenner, CEO of Last Energy UK, a subsidiary of Last Energy. “This is another critical milestone necessary to unlock nuclear power at scale in the UK, which will help meet growing energy demand and alleviate grid restraints. We appreciate ONR’s efforts during early engagement, which has allowed us to accelerate through the process swiftly. We also very much welcome that ONR has applied proportionality during their engagement with us, as this is a critical enabler for realising the benefits of SMRs.”
Today’s announcement comes on the heels of a series of landmark policy reforms introduced by Prime Minister Keir Starmer on 6 February to streamline nuclear planning and accelerate deployment in the UK. Among the changes being made, micro-nuclear plants will now be accounted for in the planning process and siting eligibility will be dramatically widened to make deployment possible “anywhere across England and Wales.” Last Energy welcomes these reforms, and looks forward to working with His Majesty’s Government to deliver clean baseload power to data centers and industrial customers throughout the country.
Last Energy’s South Wales project now becomes the first new site for a commercial nuclear power reactor to enter licensing since the Torness Nuclear Power Station in Scotland in 1978. All British deployments since then have been on, or adjacent to, sites with existing or former nuclear plants. Last Energy is proud to pioneer nuclear development where it is needed, not only where it has historically been, and take a leading role in advancing the UK’s goals for greater siting flexibility.
In October 2024, Last Energy announced plans to deploy four microreactors in South Wales at a vacant site that housed the coal-fired Llynfi Power Station from 1951 to 1977. The company obtained site control that month, followed by EXIM’s $103.7 million (USD) LOI to cover end-to-end delivery for its first installation, pending final commitment. In January 2025, Last Energy accepted a grid connection offer from National Grid Electricity Distribution (NGED) for 22 MW of export capacity. Last Energy aims to deliver its first microreactor in Wales in 2027, pending the licensing, permitting, and planning processes.
The official name for this project, being developed by Last Energy UK Limited, is Prosiect Egni Glan Llynfi.
About Last Energy: Founded in 2019, Last Energy is an American micro-nuclear technology developer on a mission to unlock energy access by transforming nuclear plants from complex construction projects into a mass-manufacturable product. Last Energy’s PWR-20 produces 20 MWe, is fully modular, and designed for flexible siting, plug-and-play installation, and rapid scalability. By productizing nuclear energy, Last Energy is transforming power generation for data centers, manufacturers, and other industrial customers throughout the United States and Europe.
Contact Matt Fossen, media@lastenergy.com
