Tariff Petition 2008-09 to 2010-11 - WBSEDCL

TARIFF PETITION- 2008-09,2009-10 & 2010-11Unit Date of synchronization /Commercial operationUnit-IV 10/10/2007Unit-III 12/11/2007Unit-I 31/01/2008Unit-II 06/02/2008Like other regions of the Country there is a peaking power shortage in theEastern Region at present. West Bengal is at present having a peak shortage of about9%. Massive rural electrification by 2012 will increase the demand further. Beforecommissioning of PPSP the state had an Hydro-Thermal mix of 3:97. Sufficient thermalcapacity will be added in the state sector by 2012 and there will be adequate surplusenergy during the off peak period. This surplus energy will be utilized as pumping energyat PPSP to generate power during peak hours as per system requirement.The Purulia Pumped Storage Project (PPSP) is not merely a capacity additionproject, It helps to stabilize the power system in the state as well as in the country. Thusit stabilizes the grid system, contributes quality power and meets peak demand. Becauseof enhanced use of generation capacity in the off-peak hours there would be animprovement of Plant Load Factor (PLF) and the efficiency and life of thermal plants inthe state will get increase.Truly speaking the power to be generated from PPSP would have a positiveimpact on the power system in the state and in the national grid also.PPSP with a generation of 800 MU per annum will contribute less than 5% of totalprocurement of WBSEDCL in a year. There will be no adverse effect on revenuerequirement of WBSEDCL rather there will be a cost benefit since the peak power pricecan be considered at the highest UI rate of Rs. 10.00 / unit under present systemcondition.West Bengal State Electricity Distribution Company Ltd. 26