Nuclear Power

 

Electricity is essential to sustain our modern lifestyle. Nuclear energy is a relatively common energy source for producing electricity. It is as safe and reliable as other commonly found energy sources, and has a low environmental impact, offering a useful contribution to fuel diversity in the world.

There are currently over 400 commercial nuclear power generating units operating in 30 countries, supplying about 10% of the world electricity.

Thirteen countries depend on nuclear power for at least a quarter of their electricity:

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Around three quarters

  • France
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Around half

  • Hungary
  • Slovakia
  • Ukaine
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Around one third

  • Bulgaria
  • Belgium
  • Slovenia
  • Czech Republic​
  • Armenia
  • Finland
  • Switzerland
  • Sweden
  • South Korea

World Nuclear Power Reactors as of September 2021

 Nuclear Electricity Generation 2020           Reactors Operable                      Reactors Under Construction       
TWh%No   MWe(net)No                 MWe (gross)
Argentina                10.07.531641129
Armenia2.634.5141500
Bangladesh000022400
Belarus0.31.01111011194
Belgium32.839.17594200
Brazil13.22.12118411405
Bulgaria15.940.82200600
Canada92.214.61913,62400
China344.74.95149,5691818,741
Czech Republic28.437.36393400
Finland22.433.94279411720
France338.770.65661,37011650
Germany60.911.36811300
Hungary15.248.04190200
India40.43.323688575650
Iran5.81.7191511057
Japan43.05.13331,67922756
South Korea152.629.62423,15045600
Mexico10.94.92155200
Netherlands3.93.3148200
Pakistan9.67.16233211100
Romania10.619.92130000
Russia201.820.63828,57832810
Slovakia14.453.1418372942
Slovenia6.037.8168800
South Africa11.65.92186000
Spain55.822.27712100
Sweden47.429.86688200
Switzerland23.032.94296000
Turkey000033600
Ukraine71.551.21513,10721900
UAE1.61.12269022800
United Kingdom45.914.513783323440
US
789.919.79395,52322500
World*2553c 10.1**442394,5375661,294

Source: World Nuclear Association; September 2021

 

Note

1. Building/Construction = first concrete for reactor poured, or major refurbishment under way

2. MWe = Megawatt net capacity

* World figures include Taiwan, which generated a total of 30.3 TWh from nuclear in 2020 (accounting for 12.7% of Taiwan's total electricity generation). The island has three operable reactors with a combined net capacity of 2859 MWe. A two-unit plant (Lungmen) commenced construction in New Taipei City in 1999. In February 2019 Taipower confirmed that the two units would not be completed  and  were removed from WNA's database on 1 September 2020.

** International Energy Agency data for year 2018 (latest available).

Nuclear power is playing an increasingly important role in China’s decarbonization journey. To meet China’s goal of achieving carbon neutrality by 2060, a total nuclear power capacity of 18 GWe is expected to be built during the China 14th Five-Year Plan. Accordingly, nuclear power is projected to reach about 10% of the national electricity generation by 2035. With the plan having identified further coastal nuclear power plant sites, it is generally expected that nuclear power will take a more prominent role in China in the coming decades.

 

Starting from the indigenous Qinshan pressurised water reactor (PWR) and imported Daya Bay French PWR beginning commercial operation in 1990s, the nuclear technology in China has been drawn from France, Canada, and Russia. Among these nuclear technologies, China develops the CPR series nuclear reactors which is based largely on the French element and ultimately produces an indigenous advanced PWR reactor design - Hualong One (HPR1000). Besides, the latest acquisition of the Westinghouse AP1000 technology from the USA has led to the indigenous Chinese reactor - Guohe one (CAP1400).

 

In addition, the world's largest and the first of its kind European Pressurised Water Reactor (EPR) units were built at Taishan in Guangdong province to give a complete picture of generation III commercialised reactors.

 

China is also constantly developing advance nuclear power technologies. Some demonstration projects such as the High Temperature Gas Cooled pebble bed modular reactor and the fast breeder reactor are also being built.

 

Nuclear power stations in Mainland China

A number of other nuclear power stations are planned. The sites are located largely in coastal provinces though a few sites in inland provinces have also been nominated for nuclear power development.

 

Hong Kong is one of the most densely populated areas in the world. It lacks marketable energy resources and requires import energy and resources. No known energy source is ideal. By considering sustainability, reliability and availability, an optimal fuel mix are considered to meet the demand of the community. Nuclear energy is a non-carbon emitting source which can be produced safely, cleanly and reliably on a commercial scale to help meet demand.

The ideal source of energy is one which is:

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Reliable & Safe

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Meeting Demand

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Affordable

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Environmental

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Abundant

Nuclear energy and natural gas for electricity generation were first introduced in Hong Kong in 1994 and 1996 respectively. Nuclear meets one quarter, natural gas provides a half with coal providing for the remainder of the consumption in Hong Kong. With the climate vision of carbon neutrality in 2050, Hong Kong is also exploring the sustainable energies which can make a more significant contribution to the future electricity supply of Hong Kong. Diversity of energy supply has served Hong Kong well. Nuclear energy is a stable cost option of offering clean and reliable supply.

 

 

Hong Kong Main Installed Capacity in 2018 by Fuel Type

Hong Kong Electricity Generation in 2020 by Fuel Type