This is a highly cost-effective way of bringing on new capacity.
Increased nuclear capacity in some countries is resulting from the uprating of existing plants. Note: units where construction is currently suspended are omitted from the above Table. † Latest announced/estimated year of grid connection. Power reactors under construction Start † Every country worldwide that has operating nuclear power plants, or plants under construction, has a dedicated country profile in the Information Library.Ībout 30 countries are considering, planning or starting nuclear power programmes (see information page on Emerging Nuclear Energy Countries). Many countries with existing nuclear power programmes either have plans to, or are building, new power reactors. Nuclear plant constructionĪbout 90 power reactors with a total gross capacity of about 90,000 MWe are on order or planned, and over 300 more are proposed. Most reactors currently planned are in Asia, with fast-growing economies and rapidly-rising electricity demand. In 2017, the IEA introduced the 'Sustainable Development Scenario' (SDS), which "portrays an energy future which emphasises co-benefits of the measures needed to simultaneously deliver energy access, clean air and climate goals." The SDS in WEO 2021 sees nuclear capacity increase to 669 GWe by 2050. The IEA has produced energy transition scenarios since 2009, beginning with the '450 Scenario', which was consistent with the narrow aim of keeping carbon dioxide concentrations below 450 ppm (parts per million) – the level associated with a 50% likelihood of keeping the average global temperature rise below 2 ☌ (compared with pre-industrial levels). The IEA estimates in WEO 2021 that the cumulative impact of the stated policies would result in global carbon dioxide emissions declining by less than 1% to 2050.
The IEA's Stated Policies Scenario (formerly named 'New Policies Scenario') is based on a review of policy announcements and plans, reflecting the way governments see their energy sectors evolving over the coming decades. In this scenario, nuclear's contribution to global power generation is about 8% in 2050. The scenario envisages a total generating capacity of 17,844 GWe by 2050, with the increase concentrated heavily in Asia, and in particular India and China. In the 2021 edition (WEO 2021), the IEA's 'Stated Policies Scenario' sees installed nuclear capacity growth of over 26% from 2020 to 2050 (reaching about 525 GWe). Angra 3 (Brazil), Ohma 1 and Shimane 3 (Japan), and Khmelnitski 3&4 (Ukraine), are not shown in the Table below.Įach year, the OECD's International Energy Agency (IEA) sets out the present situation as well as reference and other – particularly carbon reduction – scenarios in its World Energy Outlook (WEO) report. In 2021 these provided 2653 TWh, about 10% of the world's electricity.Ībout 55 power reactors are currently being constructed in 15 countries, notably China, India, Russia and the United Arab Emirates. Units where construction is currently suspended, i.e.
#Nuclear time to build plus#
Today there are about 440 nuclear power reactors operating in 32 countries plus Taiwan, with a combined capacity of about 390 GWe.
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