Universal Registration Document 2022

Introduction

CURRENT EXPECTED OPERATING LIVES* AND CLOSURE DATES
Power Plant Type of reactor Start of Generation

Power Station Lifetime (Formally Declared)

Life Extensions (Already Formally Declared) Associated Scheduled Closure Date
Hinkley Point B

Hinkley Point B

Type of reactor

AGR

Hinkley Point B

Start of Generation

Feb. 1976

Hinkley Point B

Power Station Lifetime (Formally Declared)

46 years

Hinkley Point B

Life Extensions (Already Formally Declared)

21 years

Hinkley Point B

Associated Scheduled Closure Date

2022

Hunterston B

Hunterston B

Type of reactor

AGR

Hunterston B

Start of Generation

Feb. 1976

Hunterston B

Power Station Lifetime (Formally Declared)

46 years

Hunterston B

Life Extensions (Already Formally Declared)

21 years

Hunterston B

Associated Scheduled Closure Date

2022

Dungeness B

Dungeness B

Type of reactor

AGR

Dungeness B

Start of Generation

Apr. 1983

Dungeness B

Power Station Lifetime (Formally Declared)

38 years

Dungeness B

Life Extensions (Already Formally Declared)

13 years

Dungeness B

Associated Scheduled Closure Date

2021

Heysham 1

Heysham 1

Type of reactor

AGR

Heysham 1

Start of Generation

July 1983

Heysham 1

Power Station Lifetime (Formally Declared)

41 years

Heysham 1

Life Extensions (Already Formally Declared)

17 years

Heysham 1

Associated Scheduled Closure Date

2026

Hartlepool

Hartlepool

Type of reactor

AGR

Hartlepool

Start of Generation

Aug. 1983

Hartlepool

Power Station Lifetime (Formally Declared)

41 years

Hartlepool

Life Extensions (Already Formally Declared)

17 years

Hartlepool

Associated Scheduled Closure Date

2026

Torness

Torness

Type of reactor

AGR

Torness

Start of Generation

May 1988

Torness

Power Station Lifetime (Formally Declared)

40 years

Torness

Life Extensions (Already Formally Declared)

15 years

Torness

Associated Scheduled Closure Date

2028

Heysham 2

Heysham 2

Type of reactor

AGR

Heysham 2

Start of Generation

July 1988

Heysham 2

Power Station Lifetime (Formally Declared)

40 years

Heysham 2

Life Extensions (Already Formally Declared)

15 years

Heysham 2

Associated Scheduled Closure Date

2028

Sizewell B

Sizewell B

Type of reactor

PWR

Sizewell B

Start of Generation

Feb. 1995

Sizewell B

Power Station Lifetime (Formally Declared)

40 years

Sizewell B

Life Extensions (Already Formally Declared)

Sizewell B

Associated Scheduled Closure Date

2035

* As formally recorded by EDF Energy and approved by the NDA.

Radioactive Waste Management and decommissioning

In the UK, radioactive waste is classified into four categories:

  • Low Level Waste (LLW), for which a disposal route exists – including the LLW near-surface Repository at Drigg West Cumbria;
  • Intermediate Level Waste (ILW), for which no disposal route is currently available in the UK;
  • High Level Waste (HLW) is defined as radioactive waste in which the temperature may rise significantly as a result of the radioactivity, so this factor has to be taken into account in the design of storage and disposal facilities;
  • Higher Activity Waste (HAW) – this is effectively HLW, ILW and any LLW that are unsuitable for near-surface disposal.

EDF Energy nuclear generation’s strategy for LLW and HAW reflects that the UK and Scottish Governments are focused on application of the waste hierarchy (reduce, reuse, recycle, recover). The use of a range of waste recycling and disposal routes will help to make the best use of the UK’s Low Level Waste Repository (LLWR) in Cumbria. Only a disposal route for LLW currently exists in the UK.

HAW is stored for the medium-term in safe, purpose-built facilities at EDF Energy’s stations while longer term national solutions are being established within England and Scotland.

Spent fuel from the AGRs is transported to Sellafield nuclear reprocessing site (owned by Sellafield Limited, a subsidiary of the NDA) for long term storage.

PWR spent fuel from Sizewell B is stored on site in a purpose-built spent fuel dry storage facility which will safely store all of the spent fuel that will be generated over Sizewell B’s life. Following long-term surface storage, the Sizewell B PWR spent fuel will be disposed to a future UK geological disposal facility.

The AGR spent fuel arrangements were agreed at the time of the restructuring of British Energy and through them EDF Energy pays for long term storage (and in previous years reprocessing) of spent nuclear fuel. Sizewell B’s fuel storage strategy is approved by the NDA as it is funded by the Nuclear Liabilities Fund. EDF Energy has policies to continually improve and optimise the spent fuel and waste arising through the company’s wider safety, sustainability and environmental policies.

Regulatory notice

Radioactive waste

In the United Kingdom, EDF is required, under nuclear site licence Condition 34, to ensure, so far as is reasonably practicable, that radioactive material and radioactive waste on its sites is adequately controlled or contained so that it cannot leak or escape.

In England the Environment Agency (EA) regulates the disposal of radioactive waste from licensed nuclear sites under the Environmental Permitting (England and Wales) regulations 2016. These regulations also regulate what was previously governed by Pollution Prevention and Control, Water Resources Act discharge consents, Flood Risk activity consents and Waste Management licensing.

The Committee on Radioactive Waste Management (CoRWM) published its recommendations for the long-term management of higher activity waste in 2006. In response, the UK government decided to prefer the use of deep geological disposal facilities for the storage of higher activity waste in England. It set the framework for the management of long-term storage through geological storage, combined with a safe and secure interim storage.

In Scotland, the Scottish Environmental Protection Agency (SEPA) regulates the disposal of radioactive waste from licensed nuclear sites. The Scottish Government is pursuing a near surface near site long storage or disposal policy for HAW arising from Scottish sites.

Decommissioning of nuclear facilities

In the United Kingdom, EDF is subject to nuclear site licence Condition 35 which forms the basis for the detailed decommissioning plans and programmes required by the ONR, but its requirements must be taken into account with other legal provisions such as the Nuclear Reactors (Environmental Impact Assessment for Decommissioning) regulations 1999 which require an assessment of the environmental impact of decommissioning and mitigation measures to reduce the environmental impact.

Decommissioning is usually carried out in stages, with ONR formal approval required to move on to the next stage. The ONR may order operators to start or cease decommissioning at any time and must approve decommissioning plans for each stage of the decommissioning process.

Prospective operators of nuclear power plants are required to submit in their FDP (Funding Decommissioning Programme), a Decommissioning and Waste Management Plan (DWMP), setting out the operator’s costed plans for meeting its decommissioning and waste management and disposal obligations, and a Funding Arrangements Plan (FAP), explaining how the operator will make financial provision for its obligations. Chapter 1 of Part 3 of the Energy Act  2008 (EA 2008) sets out the rules governing the decommissioning and clean-up of nuclear sites, along with detailed provisions on FDPs. Also see note  15.2.3 “Provisions for nuclear plant decommissioning” of consolidated accounts.