Power to cost more in Punjab as energy tariff up by 9.33% Industry-The Economic Times — October 23, 2017 comments off The net revenue requirement for PSPCL has been worked out at Rs 28,910.35 crore, Rs 30,241.30 crore and Rs 31,739.58 crore for 2017-18, 2018-19 and 2019-20 respectively.