ISLAMABAD: The Central Power Purchase Agency (CPPA) requested the National Electric Power Regulatory Authority (NEPRA) to reduce Rs 2.78 per unit for the month of March under monthly fuel adjustment mechanism. The official sources said in a petition that the CPPA submitted to the regulator that some 6.48 billion units were sold in March costing Rs 34.96 billion. Owing to reduction in furnace oil prices, the average cost of electricity remained Rs 5.53 per unit against the estimated cost of Rs 8.9 per unit. They said that the NEPRA would take up the petition on April 26th.