Tag: #uknuclear

ICAEW chart of the week: UK electricity projections

6 November 2020: Renewables, imports and nuclear are expected to provide around 85% of UK electricity generation by 2040, but will that be good enough to achieve carbon neutrality a decade later in 2050?

UK electricity projections chart (reference scenario): Nuclear: 48 TWh in 2008, 62 TWh in 2020, 86 TWh in 2040. Imports: 11 TWh, 28 TWh, 74 TWh. Renewables: 23 TWh, 125 TWh, 188 TWh. Carbon: 297 TWh, 109 TWh, 58 TWh in 2040.

The latest official energy and emissions projections, released by the Department for Business, Energy & Industrial Strategy (BEIS) on 30 October 2020, now extend out to 2040 – a decade before the 2050 target set by the UK Government to reach net zero.

The #icaewchartoftheweek takes a look at the progress being made on decarbonising electricity generation, with renewables, nuclear and imported electricity (much of which comes from nuclear or renewable sources) expected to increase from around 20% in 2008 to 66% this year and to just over 85% in 2040.

Overall electricity demand is expected to fall over the first half of the coming decade as improved energy efficiency and energy conservation measures (such as better insulation) continue to offset more demand from a growing population and economy (caveats apply). Lower demand in the residential and services sectors are then expected to be outweighed by higher demand for industrial and transport, particularly the latter as electric vehicles take to the roads.

Coal has now been almost entirely eliminated from electricity generation, falling from 118 TWh in 2008 (when there was also 6 TWh from oil and 173 TWh from natural gas) to 2 TWh projected in 2020 alongside 107 TWh from natural gas. Even so, coal may remain a small part of the mix even in 2040 as part of a projected 5 TWh of electricity from carbon capture and storage (CCS) plants. This should leave just 53 TWh from low (but still not no) carbon natural gas generation to eliminate over the subsequent decade.

Unfortunately, electricity is only part of the energy picture, with the reference scenario calculated by BEIS projecting that carbon sources will provide 980 TWh of final energy consumption in 2040 outside of electricity supply and direct power from renewables. This includes the equivalent of around 370 TWh from natural gas used domestically, 250 TWh from diesel and petrol used in transport, and 160 TWh from aviation fuels.

So while there continues to be welcome progress in greening the electricity supply, achieving net zero overall is not going to be as easy.

This chart was originally published on the ICAEW website.

Magnox contract exit cost: a small price to pay?

16 September 2020: The National Audit Office has issued a report on the £20m cost of exiting the failed Magnox contract to decommission nuclear research sites and power stations.

The National Audit Office (NAO) report covers the handling by the Nuclear Decommissioning Authority (NDA) of the failed Magnox contract to decommission two nuclear research sites and 10 Magnox power stations and the estimated £20m cost incurred on exiting the contract.

The NDA is a statutory body established in 2005 to take ownership of the decommissioning programme for the UK’s oldest fleet of nuclear power stations and other nuclear facilities. At 31 March 2020, the NDA had an estimated liability of £135bn in its accounts for the costs of decommissioning still to be incurred.

The NDA has awarded a series of contracts to clean up nuclear sites and deal with radioactive materials, including fuel. This includes the 14-year Magnox contract awarded in 2014 to Cavendish Fluor Partnership (CFP) which the High Court decided was wrongly awarded, with the NDA agreeing a £97m settlement with a bidder in 2017.

The NDA then decided to terminate the contract with CFP nine years early, and an earlier report by the NAO stated how £122m had been lost by that point. The Public Accounts Committee reported in 2018 that the NDA needed to improve its understanding of the state of the sites, its ability to monitor work carried out on them, and the capability and expertise of its executive team.

Since 2017, a revised contract has been agreed with CFP and further litigation avoided, with £2.7bn of decommissioning work completed before the contract ended in August 2019.

The NAO says there have been further costs to the taxpayer, including an estimated termination cost of £20m to negotiate the early exit from the contract and incentivise a smooth handover of sites without further legal challenge. This is a relatively small amount in the context of the £6.9bn to £8.7bn estimated cost for decommissioning the Magnox sites.

The NAO report stated: “With the NDA now taking more direct control over the management of its sites, it will be critically important that it builds and retains better knowledge of the condition of its sites to enable it to plan and deliver decommissioning work efficiently and effectively. The NDA considers that it will be better placed to achieve this under its revised delivery model, but it is too early for us to assess the effectiveness of these arrangements.”

Martin Wheatcroft FCA, adviser to ICAEW on public finances, commented: “The huge sums being spent on decommissioning nuclear facilities can hide many sins, but we are fortunate that the National Audit Office is able to dig around and analyse what is going on.

“On this occasion, the £20m cost of exiting the Magnox contract appears a relatively small price to pay for a second chance at getting the decommissioning of the Magnox fleet right. There are much larger sums – in the billions – riding on the as-yet unproven new delivery model being put in place by the Nuclear Decommissioning Authority.”

Image of front cover of NAO report 'Progress report: Terminating the Magnox contract'. Click on the image to go to the NAO website to download the report.

This article was originally published on the ICAEW website.