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definitive closure of the Indian reactor Rajasthan‐1, offline since 2004, was announced inSeptember 2014 47 . Consequently, both units were taken off the LTO list. The total number ofnuclear reactors in LTO as of 1 July 2015 is therefore 41; yet all but one (Monju) are consideredby the IAEA as “in operation”.As of 1 July 2015, a total of 391 nuclear reactors are operating in 30 countries, up three units(+0.5 percent) from the situation one year ago. The current world fleet has a total nominal electricnet capacity of 337 gigawatts (GW or thousand megawatts), up from 333 GW (+1.2 percent) oneyear earlier (see Figure 6).Figure 6: World Nuclear Reactor Fleet, 1954–2015GWe450400350300250200150© Mycle Schneider ConsultingNuclear Reactors & Net Operating Capacity in the Worldin GWe, from 1954 to 1 July 2015Reactors in operationOperable capacity312 GWe420 reactors438 reactors336.5 GWe391 reactorsNumber ofReactors50040030020010050100001954196019701980198919902000200220102015Sources: IAEA‐PRIS, MSC, 2015For many years, the net installed capacity has continued to increase more than the net increase ofnumbers of operating reactors. This was a result of the combined effects of larger units replacingsmaller ones and, mainly, technical alterations at existing plants, a process known as uprating. Inthe United States, the Nuclear Regulatory Commission (NRC) has approved 156 uprates since1977. These included, in 2014, five minor uprates of 1.6 percent and two substantial ones (PeachBottom‐2 and ‐3) with 12.4 percent. The cumulative approved uprates in the United States total7.3 GW,48 most of which have already been implemented. A similar trend of uprates and majoroverhauls in view of lifetime extensions of existing reactors is seen in Europe. The main incentivefor lifetime extensions is their considerable economic advantage over new‐build. Upgrading but47 Deccan Herald, “End of the road for RAPS 1”, 6 September 2014, seehttp://www.deccanherald.com/content/429550/end‐road‐raps‐1.html, accessed 24 June 2015.48 Nuclear Regulatory Commission (NRC), “Approved Applications for Power Uprates”, Updated26 August 2014, see www.nrc.gov/reactors/operating/licensing/power‐uprates/status‐powerapps/approved‐applications.html,accessed 10 June 2015.Mycle Schneider, Antony Froggatt et al. World Nuclear Industry Status Report 2015 29

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