Iran Nuclear Power: Generation, Share and Trend
Iran generated 5.39 TWh of electricity from nuclear in 2025, 1.4% of its total, according to Ember. That made it the 29th largest nuclear power producer in 2025 of the 32 countries with Ember data, comparing each country's latest year. Nuclear supplied 8.9% of the world's electricity in 2025. These are annual statistics for 2025; they are compiled from national sources and are not real time.
Key Facts
- Iran generated 5.39 TWh of electricity from nuclear in 2025.
- Nuclear supplied 1.4% of Iran's electricity in 2025.
- Iran was the 29th largest nuclear power producer in 2025 among the 32 countries with Ember data, comparing each country's latest year.
- Iran's nuclear generation in 2025 was 15% lower than in 2020, when it was 6.33 TWh.
- Iran's nuclear generation in 2025 was 54% higher than in 2015, when it was 3.50 TWh.
- Iran's nuclear generation peaked at 7.04 TWh in 2024.
- Iran's nuclear share in 2025 was below the world share of 8.9%.
- Iran had 1.02 GW of nuclear generating capacity in 2025.
Key Figures, 2025
| Measure | Value | As of / source |
|---|---|---|
| Nuclear generation | 5.39 TWh | 2025 · Ember |
| Share of Iran's electricity | 1.4% | 2025 · Ember |
| World share of nuclear | 8.9% | 2025 · Ember |
| Rank by nuclear generation (each country's latest year) | 29 of 32 | 2025 · Ember |
| Nuclear capacity | 1.02 GW | 2025 · Ember |
Nuclear Generation Year by Year
Ember annual statistics, 1985 to 2025Annual statistics through 2025, GWh
| Year | Nuclear |
|---|---|
| 1985 | 0 TWh |
| 1986 | 0 TWh |
| 1987 | 0 TWh |
| 1988 | 0 TWh |
| 1989 | 0 TWh |
| 1990 | 0 TWh |
| 1991 | 0 TWh |
| 1992 | 0 TWh |
| 1993 | 0 TWh |
| 1994 | 0 TWh |
| 1995 | 0 TWh |
| 1996 | 0 TWh |
| 1997 | 0 TWh |
| 1998 | 0 TWh |
| 1999 | 0 TWh |
| 2000 | n/a |
| 2001 | n/a |
| 2002 | n/a |
| 2003 | n/a |
| 2004 | n/a |
| 2005 | n/a |
| 2006 | n/a |
| 2007 | n/a |
| 2008 | n/a |
| 2009 | n/a |
| 2010 | n/a |
| 2011 | 110 GWh |
| 2012 | 1.45 TWh |
| 2013 | 4.26 TWh |
| 2014 | 4.07 TWh |
| 2015 | 3.50 TWh |
| 2016 | 6.47 TWh |
| 2017 | 6.96 TWh |
| 2018 | 6.88 TWh |
| 2019 | 6.41 TWh |
| 2020 | 6.33 TWh |
| 2021 | 3.54 TWh |
| 2022 | 6.57 TWh |
| 2023 | 6.64 TWh |
| 2024 | 7.04 TWh |
| 2025 | 5.39 TWh |
Annual statistics through 2025, % of generation
| Year | Iran | World |
|---|---|---|
| 1985 | 0.0% | n/a |
| 1986 | 0.0% | n/a |
| 1987 | 0.0% | n/a |
| 1988 | 0.0% | n/a |
| 1989 | 0.0% | n/a |
| 1990 | 0.0% | n/a |
| 1991 | 0.0% | n/a |
| 1992 | 0.0% | n/a |
| 1993 | 0.0% | n/a |
| 1994 | 0.0% | n/a |
| 1995 | 0.0% | n/a |
| 1996 | 0.0% | n/a |
| 1997 | 0.0% | n/a |
| 1998 | 0.0% | n/a |
| 1999 | 0.0% | n/a |
| 2000 | n/a | 16.6% |
| 2001 | n/a | 16.9% |
| 2002 | n/a | 16.5% |
| 2003 | n/a | 15.6% |
| 2004 | n/a | 15.6% |
| 2005 | n/a | 15.0% |
| 2006 | n/a | 14.7% |
| 2007 | n/a | 13.7% |
| 2008 | n/a | 13.4% |
| 2009 | n/a | 13.3% |
| 2010 | n/a | 12.8% |
| 2011 | 0.0% | 11.9% |
| 2012 | 0.6% | 10.8% |
| 2013 | 1.6% | 10.6% |
| 2014 | 1.5% | 10.5% |
| 2015 | 1.3% | 10.6% |
| 2016 | 2.3% | 10.4% |
| 2017 | 2.3% | 10.2% |
| 2018 | 2.2% | 10.1% |
| 2019 | 2.0% | 10.3% |
| 2020 | 1.9% | 9.9% |
| 2021 | 1.0% | 9.8% |
| 2022 | 1.8% | 9.1% |
| 2023 | 1.7% | 9.1% |
| 2024 | 1.8% | 9.0% |
| 2025 | 1.4% | 8.9% |
| Year | Generation | Share | World share | Capacity |
|---|---|---|---|---|
| 2025 | 5.39 TWh | 1.4% | 8.9% | 1.02 GW |
| 2024 | 7.04 TWh | 1.8% | 9.0% | 1.02 GW |
| 2023 | 6.64 TWh | 1.7% | 9.1% | 1.02 GW |
| 2022 | 6.57 TWh | 1.8% | 9.1% | 1.02 GW |
| 2021 | 3.54 TWh | 1.0% | 9.8% | 1.02 GW |
| 2020 | 6.33 TWh | 1.9% | 9.9% | 1.02 GW |
| 2019 | 6.41 TWh | 2.0% | 10.3% | 1.02 GW |
| 2018 | 6.88 TWh | 2.2% | 10.1% | 1.02 GW |
| 2017 | 6.96 TWh | 2.3% | 10.2% | 1.02 GW |
| 2016 | 6.47 TWh | 2.3% | 10.4% | 1.02 GW |
Full year by year history for Iran
Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of 2025. World shares are Ember's World totals; ranks compare each country's latest year, which can differ between countries.