The UK government has redirected £2.5 billion from the £8.3 billion budget of Great British Energy (GB Energy) to finance the development of small modular reactors (SMRs), a move that has sparked controversy and raised questions about the future direction of the country’s energy policy. This decision, announced as part of the 2025 spending review, reallocates a significant portion of GB Energy’s funding, originally intended for renewable energy projects such as wind and solar, to support the nuclear sector.
The £2.5 billion investment will be used to develop Rolls-Royce’s 480MW SMR technology, to construct small-scale nuclear power plants that are quicker and easier to build than traditional large-scale reactors. The government has partnered with Rolls-Royce to advance this initiative, marking a significant step in the UK’s efforts to diversify its energy mix and reduce reliance on fossil fuels.
However, the reallocation of funds has raised concerns among environmental groups and opposition parties, who argue that it undermines the original purpose of GB Energy. Established in 2025, GB Energy was intended to focus on renewable energy investments and support the transition to a low-carbon economy. Critics contend that diverting funds to nuclear projects could delay progress on renewable energy initiatives and shift the company’s focus away from its core mission.
The decision also highlights ongoing tensions within the government regarding energy policy. While some officials advocate for a balanced approach that includes both renewable energy and nuclear power, others emphasize the need to prioritize sustainable and clean energy sources. The rebranding of Great British Nuclear as Great British Energy, Nuclear further complicates the landscape, blurring the lines between different energy strategies and raising questions about governance and accountability.
As the UK continues to navigate its energy transition, the allocation of funds and the direction of GB Energy will be closely scrutinized. The outcome of this initiative could have significant implications for the country’s energy future, influencing not only the mix of energy sources but also the pace at which the UK moves toward its climate goals.
In summary, the government’s decision to allocate £2.5 billion from GB Energy’s budget to fund small modular reactors represents a pivotal moment in the UK’s energy policy. While it underscores a commitment to nuclear technology as part of a diversified energy strategy, it also raises important questions about the balance between nuclear and renewable energy investments and the long-term vision for the country’s energy infrastructure.