The Nuclear Industry Association (NIA) welcomes the opportunity to respond to the Delivering nuclear power inquiry by the Science & Technology Select Committee.

The NIA is the trade association and representative body for the civil nuclear industry in the UK. We represent around 250 companies operating across all aspects of the nuclear fuel cycle, including the current and prospective operators of nuclear power stations, international designers, and vendors of nuclear power stations, and those engaged in decommissioning, waste management and nuclear liabilities management. Members also include nuclear equipment suppliers, engineering and construction firms, nuclear research organisations, and legal, financial and consultancy companies.

Our members may choose to make their own, detailed response to this consultation. The focus of this submission is therefore on high-level, industry-wide matters.



New nuclear power is essential to meeting the Government’s decarbonisation targets and increasing the UK’s energy security by providing firm, domestic, clean power. This was recently recognised in the British Energy Security Strategy through the increase of ambitions for new nuclear power in the UK. Now, the Government is aiming for 24GW of new nuclear by 2050, with eight new reactors in development by 2030.

There are several areas of policy that need to be addressed to enable new nuclear projects and the fusion and decommissioning programmes in the UK, including:

  • The use of the Regulated Asset Base (RAB) model to help fund new nuclear power and the designation of Sizewell C, thus setting the precedent for other developers
  • Inclusion of nuclear power as a sustainable activity in the UK’s upcoming Taxonomy
  • The establishment of Great British Nuclear (GBN) as a vehicle to progress new nuclear power
  • Increasing the efficiency of current regulatory processes needed to build new nuclear at the required rate to meet Government targets
  • Consistent and long-term support in projects ranging from R&D to delivery


What could be done to ensure that the UK’s electricity supply is not affected by the high proportion of reactors being decommissioned?

Nuclear is essential to the UK’s decarbonised electricity mix, currently supplying around 15% of electricity demand and nearly a half of our low-carbon electricity. The current fleet has saved more than 1bn tonnes of carbon emissions over its lifetime. During the challenging circumstances caused by the events of the Covid-19 pandemic and recent energy crisis, nuclear has proven its consistency in keeping the lights on even during adverse events and has showcased its ability to be flexible when necessary.

However, all but one of the five current nuclear power stations will cease operating by 2028. In the last year alone, we have seen three stations ceasing generation; Hinkley Point B, which was the UK’s most productive nuclear power station, stopped operations this summer, Hunterston B closed in January 2022 after 46 years of operation, and Dungeness, which closed in 2021. We will lose more than 5.2GW of clean capacity from the grid in total.

Planned closures of nuclear reactors were reflected in the most recent DUKES (Digest of UK Energy Statistics) from BEIS, which showed nuclear generation was down to 16.1%. While it is expected to rebound slightly next year, in the medium-term, we are losing capacity as old stations retire, and losing it fast.

Nuclear generation will drop away swiftly and will stay low unless we invest urgently in new capacity. Of the UK’s nine generating reactors, four more will retire by March 2024 at Hartlepool and Heysham 1. These stations have been the most productive low-carbon assets in British history. They were built decades ago yet are still some of the UK’s leading sources of clean power. In short, these reactors provide clean, always-on power for which we simply have no replacement.

In the long-term, building a new fleet of nuclear reactors will help mitigate similar events such as the recent energy crisis, making the UK less reliant on imported energy from foreign sources and keeping the lights on during periods when the wind doesn’t blow, and the sun doesn’t shine.

Our own analysis found that if the UK committed to building two large scale nuclear stations at Wylfa and Sizewell, along with a fleet of Small Modular Reactors (SMRs), it could replace more than 10bn cubic metres of gas imports.

In our Forty by 50report – published in 2020 – we stated our belief that the nuclear sector could contribute 40GW of power by 2050, which includes 240TWh of electricity, 75TWh of hydrogen and 100TWh of district heat. Meeting this target would, on average, avoid 186.75m tonnes of CO2 a year (equivalent to the annual emissions of 48 coalfired power plants), create an additional 300,000 jobs, and contribute £33bn annual GVA – greater than the entire electricity and gas industry today.

The Government has also made its intentions on nuclear power clear. In its British Energy Security Strategy, Energy White Paper, and the Prime Minister’s own Ten Point Plan, it said it would be pursuing all nuclear technologies, including large-scale reactors, and have since announced it is looking at taking a stake in the 3.2GW station at Sizewell C. Hinkley Point C and Sizewell C will together meet around 14% of the UK’s current electricity demand from only a few hundred acres of land.

The Government’s own modelling for the Energy White Paper and Net Zero Strategy states that around 30GW of installed nuclear capacity will be required to decarbonise the UK’s electricity by 2050.

It is also working with the sector in the development of the Rolls Royce SMR. The first of their SMRs is set to be connected to the grid by 2031, with two reactors coming online each year thereafter. Rolls Royce SMR plan on a fleet of 16 reactors across the UK, equating to 7.5GW of installed electrical capacity.

SMRs are flexible in their output. They can provide baseload electricity when variable technologies aren’t providing high enough output, or, in periods of high renewable generation, can load follow by diverting to hydrogen or producing synthetic fuel for aviation and shipping.

The development of Advanced Modular Reactors (AMRs) is also progressing, with the Government having recently confirmed its preference to pursue High Temperature Gas Reactors as the technology of choice for its AMR programme. It committed £385m to this fund in its 2020 Energy White Paper, which may include the development of a demonstrator AMR for hydrogen production. Demonstrators are targeted to be deployed in the early 2030s.

Beyond AMRs, the UK is a key player in the burgeoning global nuclear fusion market as the home of the Joint European Torus (JET) at the Culham Centre for Fusion Energy. In the last year, the Government’s Spherical Tokamak Energy Programme (STEP) has shortlisted five sites for a UK commercial fusion reactor, making the technology more of a reality.

We are encouraged by recent Government commitments to incentivise nuclear power in the UK and this vocal confidence in the sector is integral to attracting investment into ongoing projects – from Sizewell C to STEP. However, the pace at which policies are being progressed is not enough to meet not just the scale of ambition but the necessary replacement of low-carbon electricity as our fleet of AGRs go offline over the next decade.

These projects evidently need significant investment, especially those still in the R&D stages, and the UK will miss out on funding to other competitors across the globe if the Government’s vision for nuclear in a Net Zero world does not match the ease at which investors and developers can navigate Government policy and regulation in a timely manner.

What support will industry need to meet the Government’s ambitions for delivery new nuclear power plants in the next decade?

Given the Government’s new target of having eight new reactors in development by 2030, the announced intention to establish GBN as a vehicle to delivery new nuclear in the UK was welcomed by industry. The NIA believes it will play a pivotal role in providing the key milestones and indications of progress in achieving these ambitions.

Key to this will be the first 100 days of GBN, leading to a preliminary report which was delivered to the new Prime Minister in September 2022. We believe that workstreams have been established through consultation with industry that will have their own targets, although these have not been made public yet as they are still in development. The NIA will remain in close communication with GBN and BEIS throughout this process.

Due to this, in this submission we will therefore only be touching on what the NIA believes the priorities for this vehicle should be and wait with anticipation on the official details of the GBN in due course. These priorities are:


Trust and confidence in nuclear power is lacking throughout the finance community, despite growing interest from a number of key stakeholders. Progress on establishing the RAB model as a mechanism to finance new nuclear has certainly added to this confidence, both nationally and internationally.

As we go greener and the world moves towards Net Zero, the finance sector is looking to Governments for assurance on which low-carbon technologies are a safe investment for them. Therefore, the inclusion of nuclear power in the UK Taxonomy, and Green Financing Framework, would be a significant indication that nuclear power was a good investment, as without investment, these projects cannot be built, and the UK will not hit its decarbonisation goals.

GBN should also consult with financial institutions on how to enable the effective sale of green bonds including nuclear, which took place last year in Canada, so that the Government can announce that the next issue of green bond will include nuclear within that 100-day timeframe.

It is also important to note that projects financed under green bonds can be done so at a slightly lower yield than standard debt. While this may not seem significant, for nuclear projects a 1% reduction in the weighted average cost of capital (WACC) can equate to £8-9/MWh off the strike price.

Accelerating delivery of projects

Working on the projected speed and delivery of projects will require extensive consultation with companies looking to build both GW-scale and Advanced Nuclear Technologies (ANTs) – SMRs and AMRs – in the UK within the next decade. In these conversations, GBN needs to identify how delivery through to full operation could be accelerated.

It should assemble a list of comparator project delivery models and key individuals who understand what worked, and why, to each draw on how delivery timescales of nuclear can be improved. Comparator projects could include high speed rail, submarines, and aircraft carriers, to name a few, and their lead personnel should be sought out.

Permitting and Regulation

Regulation and safety are at the heart of the nuclear sector. However, the current system cannot work efficiently or quickly enough to deliver on Government targets. Therefore, without compromising on current standards, the permitting regime should look for ways to accelerate the timeframes of decisions need to approve nuclear projects.

This should be an early priority for GBN to commission, and is particularly important to the deployment of ANTs, as previously discussed in this submission.

As part of this process, it is of critical importance to identify all the pre-Final Investment Decision (FID) steps and assess how many of them could be run in parallel rather than in series and the capacity requirements in agencies and bodies to facilitate that greater urgency of approach. We understand resource will be a significant issue for the Government and therefore should be rectified as soon as possible.

In line with current work of global harmonisation of regulation practices, the UK should incorporate the work that has been done by the ONR with equivalent regulators in Canada and the US and draw on the progress of initiatives being led by the IAEA to avoid duplication of regulatory processes for a particular reactor design. This is a further area where the UK has a chance to take the lead internationally.

This work should also look at how the benefits of nuclear power can be shared with local communities and sites – as was previously done by the Government during the 2008 siting process – and in line with approaches under discussion for renewable developments.

Earlier this year, the NIA, Energy UK, Solar Energy UK and Renewable UK wrote to the Defra Secretary of State asking that a Net Zero Duty be placed on environmental regulators in the UK to ensure that their procedures, decision-making and advice will ensure the Government’s legally binding target of Net Zero by 2050.

The work on regulation by GBN should buy-in to this ask to ensure that decisions on new nuclear power are considered under the Net Zero target, as well as building on existing cross-sector collaboration amongst low-carbon technologies.


GBN should undertake a rapid high-spot study on potential GW-scale and SMR sites in England and Wales, involving those who had been part of the previous siting process. We know this can be done, following the successful process run by the UKAEA in their bid to find a home for its Spherical Tokamak for Energy Production (STEP).

The need for more sites should guide that quick review and subsequently help identify sites suitable for large- or small-scale development, or potentially both co-developed alongside each other.

We understand that a new NPS for nuclear electricity generation infrastructure deployable after 2025 will be developed to reflect the changing technology landscape for nuclear and that the Government envisages consulting on a siting approach for new nuclear developments.

This new NPS for nuclear power should be published to include ANTs and beyond. The NPS should tackle a new siting process for SMRs – either through authorising more nuclear licensed sites or approval of unused brownfield sites to hold SMRs without special categorisation.

Furthermore, the Government should look to release existing nuclear sites as a matter of urgency, such as those under the Nuclear Decommissioning Authority’s (NDA) stewardship, for the development of ANTs. This can be done in two ways: through negotiations with a current nuclear site owner or with the NDA to obtain an appropriate site for deployment.

In relation to ownership of the land around the Wylfa A site, which was designated for new nuclear in the 2008 NPS, the Committee should look to question owners Hitachi on their requirements and plans to sell the land to a new developer, to enable progress at the site.

Supply chain and skills

There has been a lot of work previously undertaken in this area – both in mapping current skills capacity and demand, and in identifying areas throughout the fuel cycle where the supply chain is able to make a meaningful contribution. This includes the NIA’s 2012 Capability Report.

It is important that this exercise does not exclude the significant fuel capability the UK currently has, which is an important aspect of energy security. Utilising readily available information will assist in GBN producing a rapid assessment of where capability and capacity shortcomings can be addressed, and with intervention, can maximise domestic content on the accelerated scale of deployment that is being sought. Repurposing of the work that is co-ordinated by various cross-sector bodies, and actions undertaken by the previous Nuclear Sector Deal Project Management Office (PMO), to support GBN will provide a coherence and consistency currently often lacking.

The export potential of UK technology, and UK supply chain capability, should be an integral part of GBN’s remit, as it was when the Nuclear Sector Deal was published in 2018. Exports are a key driver for innovation in our sector and signal to investors major opportunities in the UK economy.

Governance and Industry engagement

There are a number of cross-industry groupings and initiatives in place – all of which should be tasked with providing support to, and a route of interaction between GBN and industry, and as appropriate with government more widely.

To execute its work effectively in its first 100 days, GBN should look to at these initiatives to make sure that its work is not duplicated, and time is wasted. For example, the Nuclear Sector Deal has a PMO in place, which should also be repurposed to help drive industry co-ordination of activity in support of GBN’s mission. There are other groups, including on skills for example, where similar rationalisation could provide a greater degree of clarity and coherence across the sector.


How can the funding methods that support the development of nuclear technologies be improved?

How can the UK leverage further private investment in this area?

The successful progression of the Nuclear Energy (Financing) Act through Parliament was essential to establish the RAB model, which could enable the low-cost financing of projects such as Sizewell C, and beyond. RAB financing would save consumers around £30bn on bills over the lifetime of each project, around £10 per year off the typical bill, according to official BEIS estimates. This is compared to the Contract for Difference (CfD) mechanism used for Hinkley Point C.

A large-scale nuclear project financed using RAB would add a small levy to bills of no more than a few pounds during the early phase of construction and less than £1 per month over the course of a project.

This is compared to the equivalent of £125 per year added to household bills as a result of balancing costs over the last 12 months. Having more firm power on the grid, like nuclear, would reduce balancing costs and avoid these excessive additional costs in a future system.

The income generated from this small levy to bills during construction will allow project developers to finance the project at cheaper rates, which would substantially cut the ultimate cost to consumers of the electricity it produces.

While recent progress is incredibly welcome, timing remains critical, and Government must remain focused if Sizewell C is to reach FID by the end of 2022 and contribute to the Government’s ambition of eight new nuclear reactors by 2030. Concluding this legislation will also allow for more resource to be allocated within Government to open negotiations for the use of the RAB model for new nuclear projects like at Wylfa.

For next generation reactors, costs will be reduced due to their modularity and ability to be built on construction lines in factories. Their designs have simpler, shorter construction programmes, and combined with opportunities for co-location with other facilities, will be lower in both cost and risk.

As a result, SMR and AMR developers are looking at both the RAB and CfD to finance their projects. The Government should continue to work with industry on developing its approach to financing advanced reactors, including providing clarity on the steps developers need to take to qualify for the commence CfD negotiations with Government. This action should be done alongside the work on siting and GDA requirements for the deployment of SMRs, which we will detail later in this response.

For the successful deployment of new nuclear beyond Sizewell C, there are funding programmes for the nuclear industry that need to be progressed, including the Future Nuclear Enabling Fund (FNEF), Nuclear Fuel Fund (NFF) and the Advanced Modular Reactor Research, Development & Demonstration (AMR RD&D) programme.

Now that applications for the £120m FNEF, which aims to help mature potential nuclear projects ahead of Government selection, have been opened to industry, assessment from Government must follow swiftly to allow successful projects receive funding by the end of 2022 or, at the very latest, Q1 2023 to have the desired impact.

There are similar time pressures involved in the progress of the £75m NFF, which aims to preserve the UK front-end nuclear fuel cycle capability and stimulate the commercialisation of new fuels needed for AMRs. A Request for Information has only just take place despite the fund being announced in the 2021 Comprehensive Spending Review.

Finally, the £2.5m AMR RD&D programme to support the development and demonstration a High Temperature Gas Reactor (HTGR) – the UK Government’s preferred type of AMR – has closed Phase A of its competition. To meet the Government’s target of building an AMR in the early 2030s, timely decisions in regards of this programme are essential to the success of this aim.

More broadly, we also hope the UK’s upcoming Taxonomy will help provide a level playing field for investment for low carbon technologies.

The NIA welcomes the Government’s intention to consult on the criteria for nuclear power to be included in the UK Taxonomy, and the formation of the Energy Working Group to look at the role of nuclear power. We believe it is clear that nuclear technologies can make a substantial contribution to the Taxonomy’s objective of climate change mitigation, and these actions are a move in the right direction.

We also note that significant research on nuclear’s characteristics has already been undertaken by the EU in the drafting of its own Taxonomy. The EU commissioned an exhaustive Joint Research Centre (JRC) report which found there was no scientific basis to treat nuclear differently from other sustainable technologies.

It has since been announced that the EU will include nuclear in its Taxonomy on a series of conditions, such as plans for the disposal of nuclear waste and the use of accident-tolerant fuel. The UK must avoid the mistakes of the EU, which wasted years, money, and resource in a political effort to deny nuclear a sustainable classification, despite the science.

As a world-leader in climate change mitigation and environmental finance, the UK can make decisions that have international ramifications. If nuclear were to be excluded from the UK Taxonomy, it would make it incredibly challenging to mobilise the required investment and make our path to Net Zero by 2050 far more uncertain.

In 2021, the Treasury published the Green Financing Framework which set out how the UK Government will finance expenditures related to tackling climate change through the issuance of green gilts and Green Savings Bonds via NS&I. The Framework is intended to be aligned to the upcoming UK Taxonomy.

Nuclear power was specifically excluded from the Framework, with the Treasury stating that in consideration of the “many sustainable investors [that] have exclusionary criteria in place around nuclear energy, the UK Government will not finance any nuclear energy-related expenditures under the Framework”.

This is in direct contrast to the position taken by several investment banks, including the Bank of Montreal, which supported the successful issuance of CAD$500m in green bonds for the refurbishment of nuclear reactors in Ontario. The issuance was six-times oversubscribed.

In consequent answers to numerous Parliamentary Questions, former Economic Secretary John Glen said that the Framework followed current international market standards for sovereign green bonds and does not wholly represent what the Government considers to be ‘green’. Government has reiterated its stance that nuclear power has an important part to play in Net Zero by 2050 and financing for the technology will be considered as part of its development of the UK Taxonomy.

The Framework will be reviewed on a regular basis, so there may be a time when nuclear is included in the future. While the Framework will not prevent private investors from investing in nuclear, its exclusion has sent a signal to the finance community that the Government does not see nuclear power as ‘green’ enough.

This must be rectified through nuclear’s inclusion in the UK Taxonomy if Government want to show they are confident in nuclear power’s role in getting to net zero. The positive recognition of nuclear in the Taxonomy would attract investors to nuclear.

To stimulate investment in nuclear, the Government should therefore:

  • Pursue a level playing field for all low-carbon technologies in the drafting of its UK Taxonomy
  • Urgently review the exclusion of nuclear from the Green Financing Framework

The key to securing investment in reliable and affordable low-carbon energy ultimately depends on clear Government direction and publicly communicated confidence in a technology and/or sector to deliver.

Earlier this year, French President Emmanuel Macron announced that France would build fourteen new reactors by 2050 as part of its bid to hit Net Zero. He also committed €1bn to France’s SMR project. Together, the programme will deliver 25GW of new nuclear capacity. In a clear commitment to nuclear, he said: “What our country needs […] is the rebirth of France’s nuclear industry.”

South Korea has openly admitted that its turnaround on nuclear power – having previously wanted to reduce its nuclear output from 25% to 10% in favour of importing energy from China and Russia – was heavily influenced by France’s confidence in nuclear power through its new nuclear construction programme and target.

The UK Government should aim to replicate France’s strong communication to the world that the UK is also open and ready for investment into our sector through a strong commitment to multiple projects, such as Sizewell C, Wylfa, Rolls-Royce SMR, and beyond. Taking a one-by-one approach is not enough to provide the security the UK needs.

This message can then be underpinned by the recommendations on funding regulation that we have outlined in this response to enable investment.


What technical challenges do the next generation of nuclear fission power plants, including Small Modular Reactor and Advanced Modular Reactors, face?        

What support or interventions are required to bring these technologies to the grid as soon as possible?

As a trade association, it is not appropriate for us to comment on the technical challenges of specific reactors, and we therefore encourage the Committee to seek out vendors of interest to report to the Committee on such details. Some of our members who are SMR and AMR technologies may respond to this inquiry separately.

From our conversations with multiple technology vendors, the basic requirements for developing projects require two things: a site and a route to market, be that either via a CfD, a RAB, or some form of power purchase agreement. If developers were able to access some form of provisional-CfD, it would significantly help them to raise the necessary investment to get their project to FID.

Multiple technology vendors estimate that, if enabled in a timely manner and having the correct policies in place, SMRs could contribute to the Government’s new 2030 target of eight new nuclear projects. However, all levers must be exercised in parallel for this happen.

We understand that a new National Policy Statement (NPS) for nuclear electricity generation infrastructure deployable after 2025 will be developed to reflect the changing technology landscape for nuclear and that the Government envisages consulting on a siting approach for new nuclear developments. However, writing this new NPS is a lengthy process, with current estimates projecting it won’t be completed for another two or three years.

The NPS new should tackle a new siting process for all ANTs – either through authorising more nuclear licensed sites or approval of unused brownfield sites to hold SMRs/AMRs without special categorisation.

Furthermore, HMG should look to release existing nuclear sites as a matter of urgency, such as those under the Nuclear Decommissioning Authority’s (NDA) stewardship, for the development of ANTs. This can be done in two ways: through negotiations with a current nuclear site owner or with the NDA to obtain an appropriate site for deployment.

Last year, BEIS announced that the Generic Design Assessment (GDA) would be opened to ANTs. Two SMR vendors are now at various stages of this process, namely Rolls-Royce SMR and Last Energy.

Applications for the £120m Future Nuclear Enabling Fund (FNEF) have now been opened to industry – large-scale and SMR bids – and following assessment from Government, successful projects must receive funding by the end of 2022 or, at the very latest, Q1 2023 to have the desired impact.

It is imperative these steps are taken by Government at pace and in parallel, not succession. Progress must be made on these barriers within the year to both meet the Government’s own targets, and to avoid falling behind our international competitors, several of whom are already ahead of us.


When will fusion power supply electricity to the grid?

Currently, the sector believes that nuclear fusion power could connect to the grid as early as the late-2030s, with former Prime Minister Johnson pledging to build the world’s first commercial fusion plant in the UK by 2040.

The UK Atomic Energy Agency (UKAEA) has hit major milestones over the past couple of years that mean a fusion plant is moving from fantasy to reality. Earlier this year, researchers at JET – based at UKAEA’s Culham, Oxfordshire site – were able to generate 59MJ of heat over five seconds. This is almost double the previous record set in 1997.

JET is the world’s most advanced fusion reactor and was designed to study fusion. Its partners span the globe – from China to the US, India to Russia. Much of the work at JET has informed work on its successor, International Thermonuclear Experimental Reactor (ITER), which is based in France.

The UK’s answer to commercial fusion is STEP. UKAEA’s STEP programme is on track to deliver its concept design by 2024 and is undergoing a siting process where a host community is expected to be chosen by the end of 2022. The Government is also working with the organisation on world-leading regulatory guidelines for the technology.

Things are heading in the right direction, and so far, work remains on target. However, if the Government is to realise its ambitious 2040 target for a STEP plant connecting to the grid, consistent support to resourcing and funding is needed to progress the project.


How can the Government ensure that the cost of decommissioning does not increase any further?

How can lessons learnt from decommissioning programmes be used to benefit new nuclear power programmes?

What needs to be done to improve the UK’s approach to dealing with nuclear waste and to ensure that the Government can meet its aims of transferring waste to geological disposal facilities?

Successful and cost-effective decommissioning programmes should always be underpinned by robust, long-term decision-making. Issues with timeliness are evident in Government programmes such as plutonium management, which is incurring unnecessary repeated costs due to a lack of decision making. The UK is responsible for the world’s single largest stockpile of plutonium, well in excess of 100 tonnes, being stored in tens of thousands of casks in Sellafield; this is not a cost-effective nor long-term solution. This material could be recycled into fuel for next generation reactors. However, it is ultimately up to HMG to make a decision.

Regarding the Government’s Geological Disposal Facility (GDF) programme, we believe community engagement is key. A consistent and transparent approach to the evaluation of potential areas and sites will help secure confidence in the process. Again, such a programme needs a long-term outlook and targets to deliver successfully.