Why Rolls-Royce SMR?

Rolls-Royce SMR’s approach to nuclear technology and development will deliver significant benefits.

Rolls-Royce SMR

Rolls-Royce SMR offers a radically different approach to delivering nuclear power, we have drastically reduced the amount of construction activities and transformed the delivery environment, from a large complex infrastructure programme into a factory built commoditised product.

Our design has evolved in response to a definitive set of market driven outcomes, this is not technology for technology's sake, but innovation, to create a transformational clean energy solution that will deliver clean, affordable energy for all.


Rolls Royce SMR will utilise the breadth of the UK supply chain, which is able to contribute in excess of 80% of each SMR by value – focusing on standardised, commercially available and off-the-shelf components.

Rolls-Royce SMR will move away from the high cost and high-risk complex construction programme principles into predictable factory built commodities. 

Approximately 90% of manufacturing and assembly activities are carried out in factory conditions, helping to maintain an extremely high-quality product, to reduce onsite disruption and to support international roll out.

Low cost

A highly competitive source of always on clean energy, meeting global challenges in an affordable and investable way.

Rolls-Royce SMR is a low-cost clean energy solution, using proven and commercially available technology to deliver a fully integrated factory built nuclear power plant. 

With a relentless focus on modularisation and maximising the amount of work conducted under factory conditions, we are able to revolutionise how nuclear power gets delivered.

Global & scalable

Making a meaningful impact across multiple countries, meeting unprecedented demand for clean energy solutions.

The need for clean energy solutions has created a global demand for our SMR as countries look for ways to provide reliable solutions to achieve Net Zero.  Our SMR has been designed in direct response to that enormous global challenge and our ambitions are set to match that global market as we look to build a world class global product.

Our factory-built model is entirely scalable, as demand increases, we invest in further factories using the same design and management systems used for all our SMRs.  

Rolls-Royce SMR will support international efforts to decarbonise energy systems, with a forecast to target £250bn of exports. Memorandums of Understanding are already in place with Estonia, Turkey and the Czech Republic.

When fully operational the Rolls-Royce SMR programme is forecast to create 40,000 regional UK jobs by 2050 and generate £52bn in economic benefit.  

The Compact footprint increases site flexibility and maximises potential plant locations, including replacement for existing coal or gas-fired plants.


Designed to attract traditional forms of capital through a low risk factory-based solution.  

By design, our SMR is focused on attracting all forms of private capital to support the build out of global SMR demand.  With a proven factory built commoditised approach, our SMR will offer investors and lenders a degree of confidence that will enable future customers to access a range of capital options to finance their SMR purchase.

For nuclear energy to play a meaningful and more significant role in our Net Zero ambitions, it must be financeable without the need for Government intervention in the long term.

A Rolls-Royce SMR power station will have the capacity to generate 470mw of low carbon energy, equivalent to more than 150 onshore wind turbines. It will provide consistent baseload generation for at least 60 years, helping to support the roll-out of renewable generation.

In addition to stable base load power, Rolls-Royce SMRs will be able to provide energy for the Net Zero manufacture of green hydrogen and synthetic fuels, to support the path to Net Zero and the decarbonisation of transport.

It will occupy approximately one tenth of the size of a conventional nuclear generation site, helping to reduce local ecological impacts. 

Rolls-Royce SMR will be factory built, enabling completed modules to be transported by truck, train or barge, reducing vehicle movements and completion risk and increasing build time certainty.

What they are saying

"Energy security, decarbonisation and electrification are fundamental to the growth and success of modern economies and the health of the planet, and have led to a significant and inevitable growth in the demand for new nuclear power. I am honoured to have the opportunity to contribute to Rolls-Royce SMR and the deployment of the UK's vital and deliverable solution to the global energy security challenge."

Sir Stephen Lovegrove GCMG KCB, Rolls-Royce SMR Chair

Next generation technologies such as Small and Advanced Modular Reactors, new nuclear will both produce low carbon power and create jobs and growth across the UK.

The Ten Point Plan for a Green Industrial Revolution, HM Government

Rolls-Royce is a great British company, which is why we previously made up to £210 million available from the advanced nuclear fund to Rolls-Royce SMR Ltd to support the development of its small modular reactor design.

Parliamentary Under Secretary of State (Minister for Nuclear and Networks), Andrew Bowie MP

SMRs are one of the most advanced nuclear power technologies in the world. Rather than having to be built on site, they're smaller and can be made in factories, transforming how power stations are built by making construction faster and less expensive. This tech could result in billions of pounds of public and private sector investment.

Prime Minister, The Rt Hon Rishi Sunak MP