Key Takeaways
- Chashma Nuclear Power Plant Unit-1 (C-1) achieved a 427-day uninterrupted operation during Cycle 18.
- The plant scored 100 on WANO Performance Indicator Index for the first two quarters of 2026.
- PAEC congratulated the CNPGS team for their technical expertise and commitment.
Chashma Nuclear Power Plant Unit-1 (C-1) has set a new operational record by running safely and without interruption for 427 days during Cycle 18, according to a statement from the Pakistan Atomic Energy Commission (PAEC).
This achievement marks the longest continuous operating cycle in the history of PAEC and places C-1 among the leading nuclear power plants globally in terms of operational performance, reliability, and safety.
During the first two quarters of 2026, C-1 achieved a World Association of Nuclear Operators (WANO) Performance Indicator Index score of 100, reflecting its exceptional performance.
The success of C-1 is attributed to the technical expertise, discipline, and teamwork of the engineers, scientists, and other personnel of the Chashma Nuclear Power Generating Station (CNPGS), supported by the continued guidance of PAEC management.
PAEC highlighted that C-1’s performance demonstrates the reliability and cost-effectiveness of nuclear power, with electricity generated by CNPGS costing Rs. 6.876 per unit—the second-lowest generation cost after hydropower, as reported in the Senate of Pakistan in September 2026.
Currently, PAEC operates six nuclear power plants with a combined capacity of 3,530 MW, supplying clean, sustainable, and low-cost electricity to the national grid.
The record achieved by C-1 further underscores PAEC’s contribution to Pakistan’s energy security through the safe, efficient, and reliable operation of its nuclear power plants.
PAEC congratulated the entire CNPGS team and acknowledged the professionalism and commitment of all those who contributed to the achievement.





