Siemens & Rolls-Royce: How SMRs are Revolutionising Nuclear
Small Modular Reactors (SMRs), are seen as a flexible and economically viable alternative to traditional nuclear plants, capturing attention globally as countries aim to diversify their energy sources with clean technologies.
As part of this forward-looking energy trend, Siemens Energy and Rolls-Royce SMR have forged a pivotal strategic alliance.
This collaboration could influence the landscape of nuclear energy, marking a crucial phase in futuristic power plant development aimed at bolstering energy security and fostering decarbonisation initiatives globally.
This collaboration, set to be finalised by the end of 2025, centres around Siemens Energy providing state-of-the-art turbine technology for the Rolls-Royce’s SMRs.
A renaissance for nuclear energy?
With the Labour government assuming power in summer 2024, the UK has renewed its commitment to nuclear power as a cornerstone of its clean energy strategy.
“Build, build, build — that is what Britain’s clean energy mission is all about," explains Ed Miliband, the UK’s Energy Secretary.
“The British people have been left vulnerable to global energy markets for too long — and the only way out is to build our way to a new era of clean electricity."
It’s not just in the UK that nuclear power is experiencing a boost in demand.
“We are currently experiencing a global renaissance of nuclear energy,” says Siemens Energy’s Executive Board Member, Karim Amin. “Numerous countries are turning to nuclear technology to produce low-emission electricity, and small modular reactors will play a key role in this.”
Unlike their larger counterparts that traditionally suffer from extended construction periods and significant capital overruns, SMRs boast a design that supports factory assembly and streamlined deployment, enabling faster, more cost-effective setups and scalability.
Technological innovations to meet modern needs
Though SMRs deviate structurally from traditional reactors, they operate on the same foundational principle — nuclear fission.
The process involves splitting atomic nuclei to release energy which, in turn, generates steam. This steam propels turbines that produce electricity.
With decades of expertise in providing nuclear-grade steam turbines and generators, Siemens Energy is optimally positioned to back Rolls-Royce SMR's visionary pursuits.
“It is pretty remarkable that a technology that has been around for more than 100 years is both the present and the future of power generation,” says Andy Goggin, SVP of Sales for Gas Services at Siemens Energy.
“Steam turbines continue to be used traditionally, while also playing a big role in the future energy transition.”
Moreover, SMRs offer enhanced flexibility compared to traditional nuclear stations.
These compact reactors can be installed in varied environments from industrial backdrops to isolated locations, addressing energy needs for a broad spectrum of applications and geographies.
They also forge a path towards modular, scalable energy production, adapting fluidly to fluctuating energy demands.
Addressing the challenges ahead
Despite the promising prospects of SMRs, the road ahead is lined with significant questions and challenges, particularly around waste management.
A persistent industry enquiry concerns whether SMRs will manage to mitigate, match or exceed the nuclear waste output of large-scale reactors.
“The question whether SMRs produce less, similar, or more nuclear waste than conventional reactors cannot be fully answered today,” Siemens Energy says in official communications.
“Conclusive results will require the construction and operation of several SMRs.”
Undeterred by these challenges, Rolls-Royce SMR is on track to become a frontrunner in commercialising these reactors, aiming for deployment across Europe as early as the early 2030s.
This ambition aligns with the overarching goals of the European Industrial Alliance for SMRs, which seeks to expedite development across the region.
“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 inevitable growth in the demand for new nuclear power,” says Sir Stephen Lovegrove, Chair of Rolls-Royce SMR.
“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.”
For Siemens Energy, the agreement with Rolls-Royce is equally exciting.
“Siemens Energy brings decades of experience in conventional equipment, while Rolls-Royce has the necessary implementation expertise,” Karim explains.
“This perfect symbiosis enables us to jointly shape the future of energy supply.”
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