Power Grid Corporation of India, incorporated in 1992, has established a transmission network of about 69,480 circuit km and 116 sub-stations having more than 77,217 MVA transformation capacity. At the beginning of its commercial business, the initial network was only 22,220 circuit km and 42 substations with transformation capacity of 12,200 MVA. It has also received approval for Follow-on Public Offer.
The company has been carrying out its responsibilities efficiently in the construction, operation and maintenance of inter-state transmission systems and operation of regional power grids. It has been notified as the Central Transmission Utility (CTU) of the country.
The objective of Power Grid Corporation of India is to create a strong and vibrant national grid in the country to ensure the optimum utilization of generating resources, conservation of an eco-sensitive right of way and the flexibility to accommodate the uncertainty of generation plans.
Power Grid has achieved many milestones and established benchmarks in various areas of its business operations and now plays a strategic role in the Indian power sector in establishing and maintaining the transmission infrastructure.
A framework for inter-regional interconnection has been evolved to establish the national grid in a phased manner by the company. In line with the perspective plan to strengthen regional grids and to support the generation capacity addition program of about 78,000 MW during XI Plan, various inter-regional transmission schemes have been commissioned/ undertaken for implementation/ planned by Power Grid.
In 1994, the Government of India entrusted Power Grid with further responsibility of controlling the existing load despatch centres in the country with a view to achieve better grid management and operation. For overall improvement and better grid management in the country, company modernised all the Regional Load Despatch Centres (RLDCs) with the state-of-the-art Unified Load Despatch & Communication (ULDC) schemes at a cost of about Rs 2,000 crore. These modernised RLDCs are greatly contributing to bring quality and economy in operation of power system besides improving data availability, visibility and transparency. For overall co-ordination, National Load Despatch Centre (NLDC) at Delhi with back up at Kolkata is under implementation and is expected to be completed by May 2008.
With the modernisation of RLDCs and implementation of various inter-regional links, inter-regional power exchange has grown manifold. Four major power regions of the country namely, North-Eastern, Eastern, Western and Northern are now operating as one synchronous grid (same frequency). Southern Regional grid is connected to this synchronous grid through HVDC links.
As a part of this, Power Grid has installed more than 19,000 km. Telecom network and connectivity has been provided to all metros, major cities and towns including state capitals in North-Eastern Region, Jammu & Kashmir, etc. The company has acquired IP-II, ISP and NLDO licences to provide a variety of services.
Grid management is carried out through a hierarchical control philosophy using Supervisory Control and Data Acquisition (SCADA) by the company. For this purpose Power Grid has established state-of-the-art Load Despatch Centres with apex establishment, National Load Despatch Centre (NLDC) at Delhi and five Regional Load Despatch Centres namely Eastern Region Load Despatch Centre, (Kolkata), North Eastern Region Load Despatch Centre (Shillong), Northern Region Load Despatch Centre, (New Delhi), Southern Region Load Despatch Centre (Bengaluru) and Western Region Load Despatch Centre (Mumbai).
Several milestones have been achieved by Power Grid Corporation of India as a part of the development of the national grid such as the implementation of Asia’s longest Talcher-Kolar HVDC Bipole link including its upgradation, Sasaram HVDC back-to-back link, 400 kV D/C Synchronous interconnection between Eastern and Western Region including series compensation, augmentation of Gazuwaka HVDC, Muzaffarpur-Gorakhpur 400 kV D/c line under Tala Transmission System, Agra-Gwalior 765 kV S/C line (operating at 400 kV), Patna-Balia 400 kV D/c line, Biharshariff-Balia 400 kV D/c line, etc.
Presently, Power Grid is one of the few telecom players with a marked presence in remote areas and is providing highly reliable services to various customers.
The company has taken lead role and making valuable contribution in the government of India’s nation building schemes of Accelerated Power Development and Reforms Programme (APDRP) and Rajiv Gandhi Grameen Vidyutikaran Yojana (RGGVY) aimed at bringing qualitative improvement in the distribution sector.
Under APDRP, Power Grid is acting as Advisor-cum-Consultant (AcC) to lend its managerial and technical expertise for improvement of distribution system in 177 distribution circles/ towns/ schemes spread over 18 States costing about Rs 6,626 crore. The company is also implementing some of these schemes on deposit work basis under bilateral arrangement in the states of Bihar, Goa, Meghalaya, Uttar Pradesh, Tripura and Gujarat at a cost of about Rs 1,100 crore, 90% of which have been completed.
Under RGGVY, the company had entered into a quadripartite agreement with Rural Electrification Corporation (REC), state governments and state power utilities for undertaking rural electrification works in the country. Powergrid has established infrastructure for electrification of villages under rural electrification programme.
Establishment of the ultimate national grid is on fast track and a number of projects are under implementation/ planned which would enhance Inter-regional power transfer capacity of the national grid to more than 37,000 MW by year 2012.
Power Grid signed a MoU with the Kenya Electric Transmission Company (KETRACO) on 12th April 2011 at Nairobi, wherein POWERGRID shall be providing assistance to KETRACO for development of Power Transmission network in Kenya.
- Power Grid was recognized as the Miniratna Category–I PSU by Government of India w.e.f October 1998
- Recognising Power Grid's sterling performance, the Government of India conferred the status of ‘Navratna’ to company on w.e.f 1st May 2008
- Power Grid was felicitated as ‘Change Master’ by Delhi Chapter of National HRD Network (NHRD-N) in the year 2009• Power Grid was conferred with INFOCOM CMAI National Telecom Award 2009 for “Utilities Providing Best Telecom Infrastructure
- Power Grid established National Load Despatch Centre (NLDC) at New Delhi in 2009
- At World HRD Congress 2011 at Mumbai, Shri S. K. Chaturvedi, CMD, POWERGRID, was conferred with “Visionary CEO of the Year” Award and Shri V M Kaul, Director (Personnel) received “HR Leadership Award”
- Power Grid was conferred with the National Telecom Award on World Telecom Day for its "Excellence in Innovation in Tower Management" in May 2011.