MANILA, Philippines - President Aquino is not closed to the use of nuclear energy to provide the country with adequate power, especially in Mindanao, but is no longer keen on reviving the mothballed Bataan nuclear power plant (BNPP) because of the high cost this would entail.

The BNPP was completed in 1984 but was never used. Mr. Aquino’s cousin, former Pangasinan congressman Mark Cojuangco, had filed House Bill 4631 seeking to rehabilitate the BNPP.

Cojuangco’s wife Kimi, who succeeded him...