The National Electric Power Regulatory Authority (NEPRA) on Wednesday notified increase in power tariff of Gulf Rental Power Plant of Northern Power Generation Company (GENCOs) by Rs0.14 to Rs16.32 per kilowatt hours (kWh) and Guddu Units 3 and 4 of Central Power Generation Company by Rs0.37 to Rs19.49 per kWh. This decision was taken due to an increase in furnace oil prices in December. The revised tariff becomes effective from December 31, 2011. The fuel tariff for 62 MW Gulf Power Rental Plant of NPGCL on furnace oil increased as their price decreased to Rs68,827 per tonne, compared to previous fortnight price of Rs69,333 per tonne. The adjustment made in the tariff for CPGCL’s Guddu Units 3 and 4 increased as the price of furnace oil increased to Rs68,636 per tonne, compared to previous fortnight price of Rs66,355 per tonne.