UK NUCLEAR HISTORY AND THOUGHTS ABOUT THE FUTURE

UK NUCLEAR HISTORY AND THOUGHTS ABOUT THE FUTURE by DR. CHRIS J. MARCHESE CHIEF OPERATIONS OFFICER 29 June 2004 IAEA-CN-114/P 2 -12 Date 15/09/2020 Slide 1

BRITISH NUCLEAR GROUP REACTOR SITES Hunterston A Wylfa Trawsfynydd Chapelcross Capenhurst Berkeley Oldbury Sizewell A Bradwell Hinkley Point A Dungeness A Date 15/09/2020 Slide 2

Early years Milestones 1950 -1972 • Capenhurst construction 1949 and production 1953 • Calder Hall construction 1953 and first power 1956 • Chapelcross construction 1955 and first power 1958 • Berkeley, Bradwell, Hunterston A, Hinkley Point A, Dungeness A, Sizewell A, Oldbury and Wylfa total of 26 reactors at power by 1971 • Reactor unit size increased from 50 MW to 500 MW in 15 years • Over 970 TWh to date Date 15/09/2020 Slide 3

Magnox Fuel Element Types Date 15/09/2020 Slide 4

MAGNOX STATIONS ANNUAL LIFETIME ACTUAL and FORECAST OUTPUT Twh Date 15/09/2020 Slide 5

AGR Fuel Element Date 15/09/2020 Slide 6

Developments from 1972 to 1995 • Windscale AGR 33 MW construction in 1957 at power 1963 and shutdown in 1981 • Dungeness B, Hinkley Point B, Hunterston B, Heysham 1 and 2, Hartlepool and Torness all twin unit 660 MW(e) AGR reactors commissioned in 1970 s and 1980 s. • Sizewell B PWR on load at 1188 MW by 1995 • British Energy achieving 67 TWh in 2001/2 financial year Date 15/09/2020 Slide 7

Magnox Gas Cooled Reactors Performance WANO Mean Collection Radiation Exposure (CRE) 1994 to 2004 Date 15/09/2020 Slide 8

Magnox Gas Cooled Reactors Performance WANO Industrial Safety Accident Rate (ISA 2) per 200 k mhw 1994 to 2004 Date 15/09/2020 Slide 9

Magnox Gas Cooled Reactors Performance WANO Unplanned Automatic Scrams - 1994 to 2004 Date 15/09/2020 Slide 10

21 st century expectations- NDA • The Government is radically altering existing arrangements for managing nuclear clean-up in the UK , funded by the taxpayer. It is creating a new public body, the Nuclear Decommissioning Authority (NDA), to take responsibility from April 2005 for sites currently owned by BNFL and UKAEA and to provide strategic direction for their safe, secure, cost effective and environmentally responsible decommissioning and clean-up. • The Government's proposals are set out in the White Paper "Managing the Nuclear Legacy" and in the Energy Bill, introduced to Parliament on 27 November 2003. Date 15/09/2020 Slide 11

• Thank you for your attention and the opportunity to join in your celebratory conference Date 15/09/2020 Slide 12