SMR COMPETITION | REACTOR DESIGN Holtec has a collaboration agreement with Hyundai E&C
from late 2021 that will see Hyundai perform the detailed design of the balance of plant and prepare the full plant construction specification for the SMR-160. Hyundai will also develop the integrated 3D plant model for construction. The reactor will be initially manufactured at Holtec’s Krishna P. Singh Technology Campus in Camden, New Jersey. The SMR-160 design has completed the first phase of
the Canadian Nuclear Safety Commission’s three-phase pre-licensing design review and is undergoing pre-licensing activities with the US Nuclear Regulatory Commission. Holtec has also applied for a Generic Design Assessment of the SMR-160 in the UK. More recently, Ukraine’s nuclear generating company
Energoatom signed a cooperation agreement that envisions implementation of an SMR-160 pilot project with targeted grid connection by March 2029. The deal further contemplates up to 20 additional SMR-160 units in Ukraine and a manufacturing facility.
NuScale The NuScale SMR is a PWR dubbed the NuScale Power Module. This a small PWR is designed to generate 77 MWe at 250 MWth and with be deloyed as a series of modules that can be scaled to meet specific demand up to 924 MWe. VOYGR™ SMR plants will feature four six or up to 12 power modules. It will use standard light water reactor fuel and is the only small modular reactor to receive design approval from the US Nuclear Regulatory Commission (NRC). As with other SMR designs, the NuScale Power Module was developed to supply electricity but also potentially generation, district heating, desalination, commercial-scale hydrogen production and other process heat applications. The design features passive operating and safety systems and the modules are submerged in a pool built below ground level. NuScale SMR projects are already being considered in
more than 10 countries and the first project is expected to begin operation in 2029 in Idaho. NuScale has already placed an order for the production of pressure vessel components and, in May, South Korea’s Doosan Enerbility began producing forgings for the first VOYGR-6 power
plant to be built for Utah Associated Municipal Power Systems (UAMPS). Earlier this year Polish metals company KGHM Polska
MiedzKGHM received preliminary state approval for a planned SMR which followed on from a 2022 agreement with NuScale to work on deploying a VOYGR plant in Poland by 2029. A Memorandum of Understanding was also signed this year by Romanian nuclear utility SNN, NuScale, Romanian companies E-INFRA and Nova Power & Gas, US-based Fluor Enterprises and South Korea’s Samsung C&T Corporation to collaborate on the deployment of VOYGR plants in Central and Eastern Europe. Romania aims to be the first country in Europe to deploy a VOYGR SMR and earlier this month Romania’s National Commission for the Control of Nuclear Activities approved the Licensing Basis Document for the NuScale design.
Rolls Royce SMR The Rolls-Royce SMR design is one of the larger reactors destined for this market as a three loop PWR with an output of 470 MWe derived from 1,358 MWth. The Rolls-Royce SMR concept is centred on innovative modularisation of reliable and proven technology, allowing maximum use of the factory environment to combine standard components with advanced manufacturing techniques. The factory-built modularisation approach is expected to drastically reduce the amount of on-site construction while its compact footprint and modular design means it can be located alongside energy intensive industrial processes. Rolls Royce SMR, which was established in November
2021, suggests the unit will offer availability above 92% for 60 years supplying both on- and off-grid electricity as well supplying industrial applications and sectors such as the production of clean fuels. They add that their low- cost nuclear solution is expected to be competitive with renewable alternatives. The Rolls-Royce SMR design is currently progressing through Generic Design Assessment in the UK where it has completed the first phase and is expected to complete the second step by July 2024. Commenting on the shortlisting, Chris Cholerton, Rolls-
Royce SMR CEO, said: “We have the only SMR technology in a European regulatory approval process, putting us
Below: A graphic showing the NuScale VOYGR SMR
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