The UK New Build Programme

There are currently 8 sites being considered for nuclear new build in the UK.

Bradwell in Essex,
Moorside in Cumbria,
Hartlepool in County Durham
Heysham in Lancashire
Hinkley Point in Somerset 
Oldbury in Gloucestershire
Sizewell in Suffolk
Wylfa on the Isle of Anglesey.

Three companies either own the sites or have bought them from the NDA.

EDF Energy (formerly British Energy) own the sites at Bradwell, Hartlepool, Heysham, Hinkley Point and Sizewell with Hinkley Point and Sizewell identified as the sites to be utilised first. 

Horizon Nuclear Power (currently owned by Hitachi-GE) own the sites at Oldbury and Yr Wylfa.

NuGeneration (currently owned by Toshiba) owns the site at Moorside.

Generic Design Assessment of Nuclear Reactors

The Office of Nuclear Regulation (ONR) requires a Generic Design Assessment of any reactor proposed for the new build programme. Initially four reactors designs were considered when the assessment started in August 2007 -

AECL ACR1000 (Advanced Candu Reactor)
Areva EPR (European Pressurised Water Reactor)
GE-Hitachi ESBWR (Economically Simplified Boiling Water Reactor)
Westinghouse AP1000 (Advanced Passive)

Initial assessments were completed in March 2008 but was quickly followed by AECL withdrawing from the process in April 2008. Detailed assessment of the remaining designs started in June 2008. In September 2008 GE requested that the process be suspended for their design. The Step 3 reports were published in November 2009 followed by a public consultation. Interim design acceptance for the EPR and AP1000 was granted by the ONR in December 2011.

Hitachi-GE entered their Advanced Boiling Water Reactor (ABWR) into the process in 2013.

The Design Acceptance Confirmation (DAC) and Statement of Design Acceptability (SoDA) has so far been issued for four reactors -
EPR – December 2012
AP1000 – March 2017  
UK-ABWR – December 2017

The UK HPR1000 entered Step 2 of 4 of the process in November 2017

EDF- UK Government Strike Price Negotiations

On October 21st 2013 it was announced the EDF Energy and the Uk Government has reached agreement on the Strike Price for EPR reactors at Hinkley Point and Sizewell.

The Strike Price is set at:

  • £89.50/MWh if Sizewell C goes ahead. There will be a payment from Sizewell C to Hinkley Point C equivalent to £3/MWh upon the final investment decision being taken with respect to Sizewell C reflecting the fact that the first of a kind costs of EPR reactors are shared across the Hinkley Point C and Sizewell C sites.
  • £92.50/MWh for HPC project if Sizewell C does not go ahead.

If wholesale prices rise above an agreed “strike price”, consumers will not pay extra. If they fall below this price the generator will receive a top-up payment.

For further information go to