Power Plant | Power(1)(in MW) | Output(2) (in TWh) | |
|---|---|---|---|
AGR Power Plants | 2020 | 2019 | |
| Dungeness B | Dungeness B Power(1)(in MW) 1,090 | Dungeness B Output(2) (in TWh) (0.2) | (0.2) |
| Hartlepool | Hartlepool Power(1)(in MW) 1,185 | Hartlepool Output(2) (in TWh) 8.5 | 7.6 |
| Heysham 1 | Heysham 1 Power(1)(in MW) 1,060 | Heysham 1 Output(2) (in TWh) 6.1 | 6.8 |
| Heysham 2 | Heysham 2 Power(1)(in MW) 1,240 | Heysham 2 Output(2) (in TWh) 8.9 | 10.3 |
| Hinkley Point B | Hinkley Point B Power(1)(in MW) 965 | Hinkley Point B Output(2) (in TWh) 1.8 | 6.9 |
| Hunterston B | Hunterston B Power(1)(in MW) 985 | Hunterston B Output(2) (in TWh) 2.3 | 1.0 |
| Torness | Torness Power(1)(in MW) 1,200 | Torness Output(2) (in TWh) 9.9 | 10.1 |
PWR Power Plant | PWR Power Plant Power(1)(in MW)
| PWR Power Plant Output(2) (in TWh)
| |
| Sizewell B | Sizewell B Power(1)(in MW) 1,198 | Sizewell B Output(2) (in TWh) 8.4 | 8.5 |
TOTAL | TOTAL Power(1)(in MW) 8,923 | TOTAL Output(2) (in TWh) 45.7 | 51.0 |
LOAD FACTOR (3) | LOAD FACTOR (3) Power(1)(in MW)
| LOAD FACTOR (3) Output(2) (in TWh) 58% | 65% |
(1) Capacities are stated net of all power consumed for the power stations’ own use, including power imported from the grid.
(2) Output in each year reflects any refuelling, planned and unplanned outages.
(3) Load factors are obtained by dividing the actual output by the output that would have been achieved by each power plant operated at its stated capacity appropriate for the period.
The nuclear generation fleet produced 45.7TWh during 2020, 5.3TWh less than 2019(51.0TWh). The reduction in output is largely due to:
Ces baisses sont partiellement compensées par une diminution du nombre d’arrêts programmés en 2020.
These reductions are partly offset by fewer statutory outages in 2020.
Planned statutory outages were carried out on Heysham 2 Reactor 8 and Heysham 1Reactor 1. Planned statutory outages on Torness Reactor 1 and Hunterston B Reactor4 were deferred to 2021 due to the Covid-19 pandemic.
A statutory outage was started on Dungeness B Reactor 22 in Q3 2018 with an associated outage on Reactor 21 for work on common systems. These outages were extended to address corrosion on cooling water pipework and the discovery of steam pipework cracking and the units were expected to return to service in May/April 2020. Since then further safety case challenges have arisen in relation to flooding in the event of a boiler tube failure and in relation to a reactor pressure vessel component called the gas baffle. In recognition of the complexity which these cases present, the expected return to service has been put back to H1 2021.
Following extended outages for graphite core inspections and related safety casework, both units at Hunterston B returned to service during H2 2020. The intention is to run each reactor for two six months periods of operation, subject to a graphite inspection and further regulatory approval between each run. The decision has also been taken in 2020 to end power generation at Hunterston B no later than 7 January 2022.
Both reactors at Hinkley Point B are currently shut down while safety case work related to the graphite core continues. The expected return to service dates are H12021. The decision has been taken in 2020 to end power generation at Hinkley Point B no later than 15 July 2022.
Power Plant | Type of reactor | Start of Generation | Power Station Lifetime (Formally Declared) | Life Extensions (Already Formally Declared) | Associated Scheduled Closure Date | Scheduled Periodic Safety Reviews |
|---|---|---|---|---|---|---|
| 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 | Hinkley Point B Scheduled Periodic Safety Reviews 2017 |
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 | Hunterston B Scheduled Periodic Safety Reviews 2017 |
| Dungeness B | Dungeness B Type of reactor AGR | Dungeness B Start of Generation Apr. 1983 | Dungeness B Power Station Lifetime (Formally Declared) 45 years | Dungeness B Life Extensions (Already Formally Declared) 20 years | Dungeness B Associated Scheduled Closure Date 2028 | Dungeness B Scheduled Periodic Safety Reviews 2018 |
| Heysham 1 | Heysham 1 Type of reactor AGR | Heysham 1 Start of Generation Jul. 1983 | Heysham 1 Power Station Lifetime (Formally Declared) 41 years | Heysham 1 Life Extensions (Already Formally Declared) 15 years | Heysham 1 Associated Scheduled Closure Date 2024 | Heysham 1 Scheduled Periodic Safety Reviews 2019 |
| 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) 15 years | Hartlepool Associated Scheduled Closure Date 2024 | Hartlepool Scheduled Periodic Safety Reviews 2019 |
| Torness | Torness Type of reactor AGR | Torness Start of Generation May 1988 | Torness Power Station Lifetime (Formally Declared) 42 years | Torness Life Extensions (Already Formally Declared) 17 years | Torness Associated Scheduled Closure Date 2030 | Torness Scheduled Periodic Safety Reviews 2020 |
| Heysham 2 | Heysham 2 Type of reactor AGR | Heysham 2 Start of Generation Jul. 1988 | Heysham 2 Power Station Lifetime (Formally Declared) 42 years | Heysham 2 Life Extensions (Already Formally Declared) 17 years | Heysham 2 Associated Scheduled Closure Date 2030 | Heysham 2 Scheduled Periodic Safety Reviews 2020 |
| 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 | Sizewell B Scheduled Periodic Safety Reviews 2025 |
*As formally recorded by EDF Energy and approved by the NDA.
