Iran Electricity Generation & Grid Mix
In 2025, Iran generated 395.78 TWh of electricity (1.25% of global output, ranked #12 worldwide). Its primary generation source was Natural Gas at 354.39 TWh (89.5% of the national grid), while low-carbon sources (nuclear + renewables) provided 5.7% of total supply.
Iran Electricity Generation by Source (2025)
2025 Total Output: 395.78 TWh · Carbon Intensity: 660 gCO2/kWh
Iran Electricity Generation & Capacity by Source (2025)
| Generation Source | 2025 Output (TWh) | Grid Share (%) | Installed Capacity (GW) | 5Y Change | Share of World Fuel |
|---|---|---|---|---|---|
| Natural Gas | 354.39 TWh | 89.5% | 76.57 GW | +32.1% | 5.1% |
| Oil & Other Fossil | 18.10 TWh | 4.6% | 0.06 GW | -51.0% | 2.2% |
| Hydroelectric | 13.03 TWh | 3.3% | 11.78 GW | -43.8% | 0.3% |
| Nuclear | 7.35 TWh | 1.9% | 1.02 GW | +16.1% | 0.3% |
| Wind | 1.25 TWh | 0.3% | 0.38 GW | +10.6% | 0.1% |
| Solar | 0.90 TWh | 0.2% | 1.78 GW | +55.2% | 0.0% |
| Coal | 0.73 TWh | 0.2% | - | -8.8% | 0.0% |
| Bioenergy | 0.03 TWh | 0.0% | 0.02 GW | +50.0% | 0.0% |
Iran Historical Generation & Emissions Ledger (2000-2025)
| Year | Total (TWh) | Coal | Gas | Nuclear | Hydro | Wind | Solar | Clean % | gCO2/kWh |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 395.8 | 0.7 | 354.4 | 7.4 | 13.0 | 1.3 | 0.9 | 5.7% | 660 |
| 2024 | 395.8 | 0.7 | 340.1 | 7.4 | 18.9 | 1.3 | 0.9 | 7.2% | 649 |
| 2023 | 382 | 0.7 | 322 | 6.6 | 22.8 | 1.2 | 0.7 | 8.2% | 641 |
| 2022 | 367.1 | 0.7 | 313.4 | 6.6 | 14.0 | 1.1 | 0.6 | 6.1% | 655 |
| 2021 | 356.4 | 0.7 | 302.2 | 3.5 | 13.8 | 1.1 | 0.6 | 5.4% | 660 |
| 2020 | 337.2 | 0.8 | 268.2 | 6.3 | 23.2 | 1.1 | 0.6 | 9.3% | 633 |
| 2019 | 318.9 | 0.8 | 244.5 | 6.4 | 33.9 | 0.7 | 0.5 | 13.0% | 608 |
| 2018 | 312.4 | 0.6 | 266.3 | 6.9 | 9.8 | 0.8 | 0.2 | 5.7% | 658 |
| 2017 | 305.2 | 0.7 | 252.5 | 7.0 | 17.2 | 0.3 | 0.1 | 8.1% | 642 |
| 2016 | 286.1 | 0.5 | 225.3 | 6.5 | 15.4 | 0.2 | 0.0 | 7.7% | 642 |
| 2015 | 280.2 | 0.5 | 206.6 | 3.5 | 13.3 | 0.1 | 0.0 | 6.0% | 651 |
| 2014 | 275.6 | 0.5 | 192 | 4.1 | 14.5 | 0.2 | 0.0 | 6.8% | 644 |
| 2013 | 258.9 | 0.5 | 137.7 | 4.3 | 14.6 | 0.2 | 0.0 | 7.4% | 634 |
| 2012 | 248.7 | 0.4 | 156.4 | 1.5 | 12.5 | 0.3 | 0.0 | 5.7% | 648 |
| 2011 | 235.6 | 0.4 | 142.3 | 0.1 | 10.7 | 0.2 | 0.0 | 4.7% | 654 |
| 2010 | 235.7 | 0.4 | 173.9 | 0.0 | 10.3 | 0.2 | 0.0 | 4.4% | 661 |
| 2009 | 221.8 | 0.4 | 149.4 | 0.0 | 6.7 | 0.2 | 0.0 | 3.1% | 667 |
| 2008 | 210.5 | 0.4 | 135.1 | 0.0 | 7.4 | 0.2 | 0.0 | 3.6% | 662 |
| 2007 | 203.1 | 0.6 | 138.8 | 0.0 | 18.0 | 0.1 | 0.0 | 8.9% | 631 |
| 2006 | 193.4 | 0.6 | 125.1 | 0.0 | 18.5 | 0.1 | 0.0 | 9.6% | 625 |
| 2005 | 177.1 | 0.6 | 124.6 | 0.0 | 14.5 | 0.1 | 0.0 | 8.2% | 636 |
| 2004 | 162.8 | 0.5 | 114.6 | 0.0 | 11.9 | 0.1 | 0.0 | 7.4% | 642 |
| 2003 | 151.7 | 0.5 | 109.9 | 0.0 | 9.6 | 0.0 | 0.0 | 6.3% | 649 |
| 2002 | 138.2 | 0.5 | 98.0 | 0.0 | 8.0 | 0.0 | 0.0 | 5.8% | 652 |
| 2001 | 127.6 | 0.5 | 89.5 | 0.0 | 4.1 | 0.0 | 0.0 | 3.3% | 668 |
| 2000 | 119.4 | 0.5 | 81.6 | 0.0 | 3.8 | 0.0 | 0.0 | 3.2% | 668 |
Frequently Asked Questions - Iran Power Grid
How much electricity does Iran generate and what is its #1 power source?
In 2025, Iran generated 395.78 TWh of electricity (1.25% of global output). Its largest single generation source was Natural Gas at 354.39 TWh (89.5% of the national grid mix).
What share of Iran's electricity comes from clean and renewable sources?
Low-carbon sources (nuclear plus renewables) supplied 5.7% of Iran's electricity in 2025, with renewables accounting for 3.9% and wind plus solar contributing 0.6%. Fossil fuels accounted for 94.3% of total generation.
What is the carbon intensity of Iran's electricity grid?
In 2025, Iran's power sector carbon intensity was 659.5 gCO2/kWh, with total power sector emissions of 261.03 million metric tons of CO2.