sized projects, approximately 4000 MW each involving an estimatedinvestment of about Rs. 16,000 crore. These projects will meet thepower needs of a number of States/ distribution companies located inthese States, and are being developed on a Build, Own, and Operate(BOO) basis.2.Electricity TransmissionTransmission of electricity is defined as bulk transfer of power over along distance at a high voltage, generally of 132 kV and above. A wellplanned and strong transmission network ensures optimal utilizationof transmission capacities and generation facilities. The entire countryhas been divided into five regions for transmission systems, namelyNorthern Region, North Eastern Region, Eastern Region, SouthernRegion and Western Region. The interconnected transmissionsystem within each region is called the regional grid. Formation ofstrong 'National Power Grid' has been recognised as a major initiativefor facilitating the development of power industry and fulfilling theobjective of 'electricity to all' at affordable rates.The Central Transmission Utility (CTU) is responsible for the nationaland regional transmission system planning and development and isalso providing Open Access on its inter-State transmission system.While, the State Transmission Utility (STU) is responsible for planningand development of the intra-state transmission system. The PowerGrid Corporation of India Limited (PGCIL)/ Power Grid has beenset up for establishment and operation of regional and national powergrids, in order to facilitate transfer of power within and across the100
ABM 502 Unit IIregions with reliability, security and economy, on sound commercialprinciples.Out of the Rs. 8,00,000 crores required for doubling the powercapacity to 2,00,000 MW by the year 2012, about Rs. 2,00,000 croreswould be required for the associated transmission system includingcreation of a National Grid. An investment of about Rs. 71,000 croresis envisaged in transmission under central sector, out of which PowerGrid has planned to invest about Rs. 50,000 crores on its own andthe remaining Rs. 21,000 crores is expected to be brought in by theprivate investors.Government of India has issued guidelines for mobilising resourcesfrom private sector. These guidelines envisage two distinct routes forprivate sector participation in transmission, namely:- (i) Joint Venture(JV) Route, wherein the CTU/STU shall own at least 26% equity andthe balance shall be contributed by the Joint Venture Partner (JVP);and (ii) Independent Private Transmission Company (IPTC) Route,wherein 100 percent equity shall be owned by the private entity. As on March 31,2006, PGCIL is operating about 55,120 ckt kms oftransmission lines consisting of 563 ckt kms of 800 KV; 4368 ckt kmsof HVDC system; 40179 ckt kms of 400 KV; 7734 ckt kms of 220 KVand 2241 ckt kms of 132 KV and 37 ckt kms of 66 KV lines along with93 sub-stations with about 54380 MVA transformation capacity. About45 per cent of total power generated in the country is beingtransferred over PGCIL's transmission network.
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