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<strong>atw</strong> Vol. 62 (<strong>2017</strong>) | Issue <strong>12</strong> ı December<br />

had nothing to do with the company’s AP1000 reactor<br />

technology and that AP1000 reactors being built in China<br />

are proceeding well.<br />

In September <strong>2017</strong> Westinghouse said it remained<br />

committed to developing a 225-MW small modular reactor<br />

in the UK.<br />

Author<br />

NucNet<br />

The Independent Global Nuclear News Agency<br />

Editor responsible for this story: Kamen Kraev<br />

Avenue des Arts 56<br />

1000 Brussels, Belgium<br />

www.nucnet.org<br />

The Cost of SMRs: How Rolls Royce Aims<br />

to Compete with Wind and Solar<br />

NucNet<br />

The UK nuclear industry is hoping that claims by Rolls-Royce that small modular reactor (SMR)<br />

projects could deliver electricity for a similar cost to offshore wind will provide much-needed<br />

impetus to government plans for the country to develop a “best value” SMR and put it into<br />

commercial operation by the end of the next decade.<br />

Rolls-Royce and its consortium partners, including Amec<br />

Foster Wheeler, Arup, Laing O’Rourke and Nuvia, say the UK<br />

SMR they are developing could produce energy for as low<br />

as £ 60 (€ 66, $ 79) per MWh, which is competitive against<br />

wind and solar and significantly lower than the £ 92.50 per<br />

MWh agreed by the government and project developer<br />

EDF for the new Hinkley Point C nuclear station.<br />

According to Rolls-Royce, the capital cost of the UK SMR<br />

can be reduced from a first-of-a-kind (FOAK) baseline to<br />

Nth-of-a-kind (NOAK) over a relatively short period of time,<br />

perhaps as little as eight years. This is less than the time<br />

required to construct a single large reactor such as the EPRs<br />

planned for Hinkley Point in Somerset. The levelised cost of<br />

electricity (LCOE) generated by a FOAK UK SMR power<br />

station is forecast under £ 75 per MWh, but this reduces to a<br />

forecast £ 65 per MWh by station number five. In the<br />

medium term the target is even lower at £ 60 per MWh.<br />

The Rolls-Royce cost estimates were a boost for the<br />

nuclear industry, coming days after it emerged that<br />

offshore wind has fallen in cost over the past few years<br />

with a recent UK government auction for subsidy contracts<br />

awarding offshore wind projects due to generate power in<br />

2021-22 contracts at £ 74.75 per MWh, while those set to<br />

generate in 2022-23 were awarded contracts for £ 57.50<br />

per MWh. That price is half of what new offshore<br />

windfarms were being awarded just two years ago.<br />

However, Rolls-Royce also warned in its report that the<br />

government needs to “move forward with pace” towards<br />

establishing the conditions required for a UK SMR to<br />

flourish. The rest of the world continues to develop SMR<br />

technology and the UK is in danger of being left behind. A<br />

key role for government is to provide a fertile “ecosystem”<br />

for UK SMR development, starting with policies and<br />

support for an indigenous UK SMR market.<br />

In 2016 the government launched the first phase of a<br />

£ 250 m SMR competition to choose the best design of<br />

SMR for the UK, but the second stage of the competition –<br />

with design proposals chosen for funding – has not yet<br />

materialised. The competition followed an announcement<br />

in 2015 when the then chancellor George Osborne<br />

promised £ 250 m over five years for a nuclear research<br />

and development programme, an undisclosed sum of<br />

which was for a competition to pave the way for SMRs.<br />

Sources confirmed that officials from the Department for<br />

Business were whittling down proposals from various<br />

consortia, including Rolls-Royce, keen<br />

to work with the government to<br />

develop SMRs. The Daily Telegraph<br />

newspaper reported on 9 September<br />

<strong>2017</strong> that ministers are ready to<br />

approve the development of a fleet of<br />

SMRs. Industry players including<br />

Rolls-Royce, NuScale, Hitachi and Westinghouse<br />

have held meetings in past<br />

weeks with civil servants about nuclear<br />

strategy and development of SMRs,<br />

the newspaper said. Tom Greatrex,<br />

chief executive of the London-based<br />

Nuclear Industry Association, said<br />

with a potential global market for SMRs valued at<br />

£ 250 bn – £ 400 bn, the government must provide clarity if<br />

the energy, industrial and export opportunities of a UK<br />

SMR are to be realised.<br />

The appeal of SMR designs is that because of their small<br />

size, 300 MW or less, they are economic, factory built<br />

and shippable, flexible enough to desalinate, refine oil,<br />

load-follow wind, and produce hydrogen. And they seek<br />

to address the basic economic challenges that larger plants<br />

have struggled to overcome in recent years. Those<br />

challenges include reducing the overall capital cost,<br />

which would allow for conventional project financing;<br />

improved certainty of construction, manufacture and<br />

project delivery; and a competitive LCOE.<br />

Energy analyst James Conca, writing in Forbes magazine,<br />

identifies another key advantage of SMRs. The small size<br />

and large surface area-to-volume ratio of SMRs, like the<br />

one being developed by NuScale Power, that sits below<br />

ground in a super seismic-resistant heat sink, allows natural<br />

processes to cool it indefinitely in the case of a complete<br />

power blackout, with no humans needed to intervene, no<br />

AC or DC power, no pumps, and no additional water for<br />

cooling.<br />

Rolls-Royce says SMRs are attractive because they can<br />

produce large savings for a relatively small investment.<br />

They avoid the complex challenges associated with nuclear<br />

mega-projects that require tens of billions of pounds of<br />

investment to progress – and have a general track record of<br />

overspend and delay. By reducing plant size, and therefore<br />

capital costs, SMRs can be financed via conventional<br />

project approaches, with financing limited to under<br />

Details of the<br />

clean energy package<br />

are online:<br />

http://bit.ly/2gId2Q<br />

INSIDE NUCLEAR WITH NUCNET 715<br />

Inside Nuclear with NucNet<br />

The Cost of SMRs: How Rolls Royce Aims to Compete with Wind and Solar ı NucNet

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