Nuclear power in Pakistan
Pakistan has 6 reactors operating with 3,262 MW net installed capacity, 12.2 % of its electricity. 1 under construction. 1 shut down. First reactor connected in 1972.
Pakistan ranks 16th among the 32 countries with operating reactors by net capacity, and 12th by number of reactors. Its first reactor, Karachi 1, started operating in 1972, 54 years ago. All 6 operating units are PWR. The highest-capacity plant in operation is Karachi, with 2,034 MW net, and the oldest unit still in service is Chashma 1, operating since 2000. One unit is under construction, Chashma 5, with grid connection expected in 2030.
PWR reactors in Pakistan · PHWR reactors in Pakistan · Rankings
Electricity generation mix
Share of electricity generation, 2025 (closest earlier year; 2026 has no data) · Ember
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Plants
| Plant | Units | Types | Status today | MWe operating |
|---|---|---|---|---|
| Karachi | 3 | PHWR, PWR | 2 operatingshut down | 2,034 |
| Chashma | 5 | PWR | 4 operatingunder construction | 1,228 |
Data: IAEA PRIS · Wikipedia · updated on Sep 17, 2026