Introduction
Western economies are starting to wobble in their determination to deliver low-carbon energy systems in line with their original ambitions. At a national level, the costs to government and consumers are under scrutiny and at a local level, communities are reacting unfavourably to infrastructure projects which deliver limited local benefits.
Against this backdrop, a rethink of nuclear power delivery may emerge as an unlikely hero. We are all familiar with the traditional nuclear story of capital cost overruns and protracted delays challenging gigawatt-scale nuclear installations, whilst the scale of reactors raises public safety concerns. Small Modular Reactors (SMRs), however, are now being promoted as a plug-and-play panacea. The question for economic development professionals is whether SMR developments built into a regionalised energy strategy can generate a broad-based economic dividend for the regions in which they operate.
- The Reality of Construction, Supply Chains, and Long-Term Operations
The central financial argument for SMRs rests on the deployment of Design for Manufacture and Assembly (DfMA), shifting up to 80% of reactor component manufacturing from complex civil sites into standardised, factory-controlled assembly lines. The industry argues that this reconfigures temporary construction booms into permanent, high-value manufacturing clusters. From a regional development perspective, this consolidation presents a double-edged sword.
When manufacturing is centralised in standardised factories, the local civil construction footprint at the final site is significantly compressed. While conventional nuclear builds bring thousands of jobs to a region for over a decade, SMR construction timelines are targeted at just 24 to 36 months. This rapid deployment lowers financing costs and accelerates returns for operators, but it dramatically curtails the long-term local employment multipliers historically associated with major infrastructure builds.
Outside of the final assembly locations, however, the supply chain is extensive and offers opportunities for advanced manufacturing hubs:
- Tier 1 (Heavy Systems): Reactor vessels and steam modules require precision forging and heavy engineering—capabilities concentrated in a few pre-existing regional clusters and with new opportunities.
- Tier 2 & 3 (Specialist Components & Materials): While drawing on speciality steel, electronics, and robotics, these sub-assemblies need to be sourced and may create additional supply chain opportunities – not least because some of these products will be developed specifically for the sector
There is, then, the benefit of the new facilities' operation. An SMR offers a 60- to 80-year lifespan and high-wage operational roles; these positions require highly specialised skills (e.g., nuclear operators, maintenance personnel, electrical and civil engineers, health physicists, and facilities managers) that local labour markets can transition to supply.
- Co-location and Closed-System Realities
Unlike with major reactor new-build projects, there is an important second tier of benefits that can stimulate a local economy. This second pillar of the economic case is the potential for industrial co-location within a closed energy ecosystem. By bypassing traditional power grids, which lose energy over distance, SMRs can theoretically sit adjacent to industrial clusters as an "Energy Hub," delivering low-cost private-wire power and high-grade thermal process heat (400-850 °C) directly to energy-intensive manufacturers.
For hard-to-abate foundational sectors such as chemical processing, glassmaking, and green hydrogen production, private-wire arrangements provide an inflation-insulated, zero-carbon environment. This configuration could transform increasingly marginal regional sites in high-energy cost economies into globally competitive locations.
There are economic development barriers to overcome regarding the acceptance of a private wire solution within the UK’s regulated energy delivery systems. Establishing a successful private-wire system also brings complications. To be effective, the co-located industry will require some synchronised planning to ensure that benefits are created, and the power station has demand. However, when industrial tenants align their investment cycles, the benefits could be large-scale. The public sector is therefore likely to play a facilitative role in the assembly challenge rather than expecting an organic market outcome.
- Lessons from Global Pioneer Models
Pioneering international deployments illustrate that the realisation of regional economic benefits depends on state intervention and pre-existing industrial capacity.
In China, the commercial operation of the Shidaowan HTR-PM plant and the Qinshan phase-III industrial heat network has demonstrated the technical viability and cost-effectiveness of nuclear co-location. These projects have successfully delivered zero-carbon process steam to adjacent textile, chemical, and plastics clusters, insulating local industries from fossil fuel volatility and reducing coal consumption.
A Western economy example is emerging through the Darlington New Nuclear Project in Ontario, Canada where SMR deployment is cited as driving regional supply chain activation. Heavy engineering firms in Ontario have secured long-term contracts, stimulating billions in provincial GDP. Crucially, however, Ontario’s success has, in part, relied on mature, pre-existing provincial nuclear supply chains and regulatory infrastructure.
Conclusion: A Strategic Lever, Not a Silver Bullet
Small Modular Reactors are fundamentally more than an evolution in clean electricity generation; they represent a powerful structural mechanism for regional economic reconfiguration. Evaluating SMR deployment as an energy solution overlooks much of the benefit it could generate.
SMRs do not automatically guarantee local prosperity. To secure benefits, targeted regional interventions are needed, such as dedicated funding for manufacturing infrastructure, synchronised planning for industrial co-location, and localised skills provision. To truly seize the SMR opportunity, regional economies cannot simply wait to host a reactor; they must actively build the industrial and human capital required to anchor its value.
SMR deployment could be part of the answer to the reindustrialisation that is often discussed but has so far seldom been achieved.
Mickledore is an economic advisory business focused on strategy, sector investment, business planning and evaluation. If you are interested in examining the sector investment opportunities in your own area, contact nwilcock@regionaldevelopment.co.uk