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  1. Nuclear power reactors, reactor types and technologies | IAEA

    Nov 7, 2025 · Nuclear power reactors produce energy by initiating and controlling a sustained nuclear chain reaction. Currently, over 400 such reactors in 32 countries provide about 10 per cent of the …

  2. What is Nuclear Energy? The Science of Nuclear Power

    Nov 11, 2025 · What is the Nuclear Fuel Cycle? The nuclear fuel cycle is an industrial process involving various steps to produce electricity from uranium in nuclear power reactors. The cycle starts with the …

  3. What are Small Modular Reactors (SMRs)? | IAEA

    Sep 13, 2023 · Small modular reactors (SMRs) are advanced nuclear reactors that have a power capacity of up to 300 MW (e) per unit, which is about one-third of the generating capacity of …

  4. Fast-neutron reactors, Fast nuclear reactors | IAEA

    Jan 18, 2022 · Sodium cooled fast reactors, lead and lead–bismuth cooled fast reactors and gas cooled fast reactors are currently being developed at national and international levels in compliance with …

  5. Nuclear research reactors | IAEA

    Nov 11, 2024 · Research reactors are nuclear reactors used for research, development, education and training. They produce neutrons for use in industry, medicine, agriculture and forensics, among …

  6. IAEA Releases Nuclear Power Data and Operating Experience for 2023

    Aug 20, 2024 · Nuclear power continued to generate almost 10 percent of the world’s electricity and a quarter of all low carbon electricity last year, according to the data, which are featured in two newly …

  7. What are Molten Salt Reactors (MSRs)? | IAEA

    Mar 11, 2025 · Molten Salt Reactors (MSRs) are nuclear fission reactors in which either the fuel and/or the coolant is a molten salt. Molten salt is salt which liquifies at elevated temperatures and can store …

  8. Small Modular Reactors: Advances in SMR Developments 2024

    Jul 7, 2024 · This publication aims to provide Member States with a concise overview of the latest developments regarding SMR technology worldwide. It explores SMRs under development, their …

  9. Small modular reactors (SMR) | IAEA

    Jul 7, 2024 · Small and medium-sized or modular reactors are an option to fulfil the need for flexible power generation for a wider range of users and applications. Small modular reactors, deployable …

  10. IAEA Outlook for Nuclear Power Increases for Fourth Straight Year ...

    Sep 16, 2024 · At the end of 2023, 413 nuclear power reactors were operational, with a global capacity of 371.5 GW (e). In the high case scenario of the new IAEA outlook, nuclear electrical generating …