Power Grid Corporation of India Limited is an Indian central public sector undertaking under the

ownership Ownership is the state or fact of legal possession and control over property, which may be any asset, tangible or intangible. Ownership can involve multiple rights, collectively referred to as '' title'', which may be separated and held by dif ...

of the Ministry of Power,

Government of India The Government of India (ISO 15919, ISO: Bhārata Sarakāra, legally the Union Government or Union of India or the Central Government) is the national authority of the Republic of India, located in South Asia, consisting of States and union t ...

. It is engaged mainly in transmission of bulk power across different states of India. It is headquartered in

Gurugram Gurgaon (), officially named Gurugram (), is a satellite city of Delhi and administrative headquarters of Gurgaon district, located in the northern Indian state of Haryana. It is situated near the Delhi–Haryana border, about southwest o ...

. Power Grid transmits about 50% of the total power generated in India on its transmission network.

History

The Power Grid Corporation of India Limited was incorporated on 23 October 1989 under the Companies Act, 1956 with an authorized share capital of Rs. 5,000 Crore (subsequently enhanced to Rs. 10,000 Crore in Financial Year (FY) 2007–08) as a public limited company, wholly owned by the Government of India with 51.34% stake in the company as on 31 December 2020 and as principal electric power transmission company for the country. Its original name was the "National Power Transmission Corporation Limited", was charged with planning, executing, owning, operating and maintaining high-voltage transmission systems in the country. On 8 November 1990, the firm received its Certificate for Commencement of

Business Business is the practice of making one's living or making money by producing or Trade, buying and selling Product (business), products (such as goods and Service (economics), services). It is also "any activity or enterprise entered into for ...

. Their name was subsequently changed to Power Grid Corporation of India Limited, on 23 October 1992. Power Grid management started functioning in August 1991 and subsequently took over transmission assets from National Thermal Power (NTPC), National Hydroelectric Power Corporation (NHPC)], North Eastern Electric Power Corporation Limited (NEEPCO), Neyveli Lignite Corporation (NLC), and other companies such as NPC, THDC, SJVNL in a phased manner; it commenced commercial operation in January 1993. It also took over the operation of existing Regional Load Despatch Centers (RLDCs) from the Central Electricity Authority (CEA), in a phased manner from 1994 to 1996, which have been upgraded and modernized with Unified Load Despatch and Communication (ULDC) schemes. The National Load Despatch Centre (NLDC) was established in 2009 for overall coordination at the national level. Later the company had diversified into the telecom sector for efficient use of its spare telecommunication capacity of unified load dispatch center (ULDC) schemes and also leverage on its country-wide transmission infrastructure. According to its mandate, the corporation, apart from providing a transmission system for evacuation of central sector power, is also responsible for the establishment and operation of regional and national power grids to facilitate the transfer of power within and across the Regions with reliability, security, and economy on sound commercial principles. Based on its performance, the firm was recognized as a Mini-Ratna Category-I Public Sector Undertaking in October 1998. It was conferred with the status of "Navratna" by the Government of India in May 2008 and "Maharatna" status in October 2019.

Business

Power Grid operates throughout India and covers 90% of country's interstate and inter-regional electric power transmission system and its business segments include Transmission, Consultancy, Telecom and ULDC/ RLDC. Its transmission network consists of roughly 168,140 circuit kilometers and 252 EHVAC and

HVDC A high-voltage direct current (HVDC) electric power transmission system uses direct current (DC) for electric power transmission, in contrast with the more common alternating current (AC) transmission systems. Most HVDC links use voltages betwe ...

substations, with total transformation capacity of 422,430 MVA as on 31 January 2021, and an availability of over 99%. Power Grid's interregional capacity is 75,050 MW. Examples of Power Grid-owned stations include the

Vizag back-to-back HVDC converter station The Vizag back-to-back HVDC station, or Visakhapatnam back-to-back HVDC station, is a back-to-back HVDC connection between the eastern and southern regions in India, located close to the city of Visakhapatnam, and owned by Power Grid Corporation ...

, the Chandrapur back-to-back HVDC converter station, and the Talcher–Kolar HVDC system. Power Grid is listed on both the BSE and the NSE. As of 30 September 2010, there were 792,096 equity shareholders holders in Power Grid. Initially, Power Grid managed transmission assets owned by NTPC, NHPC Limited and NEEPCO Limited. In January 1993, the Power Transmission Systems Act transferred ownership of the three power companies to Power Grid. All employees of the three companies subsequently became Power Grid employees.

Powertel

Power Grid's telecom company, Powertel, operates a network of and has points of presence in 3000+ locations across India.

Transmission network failures

About 2:35 a.m on 30 July 2012, the Northern Region Grid, which provides power to nine states in northern India including

Delhi Delhi, officially the National Capital Territory (NCT) of Delhi, is a city and a union territory of India containing New Delhi, the capital of India. Straddling the Yamuna river, but spread chiefly to the west, or beyond its Bank (geography ...

, experienced a widespread outage due to a grid disturbance. Power Grid and POSOCO began work immediately to restore power. By 8:00 a.m. essential services had been restored, with 60 percent of the normal Northern Region Grid load restored by 11:00 a.m. Power supply was then restored progressively and by 12:30 p.m. power was extended to most of the cities and towns through Power Grid substations. The Northern Region Grid was brought back to normalcy to meet the demand of about 30 GW at 7:00 p.m. On 31 July 2012, the Northern Region Grid collapsed a second time, hours after the power supply had been restored to the northern region following the previous day's disruption. Eastern transmission lines also failed, disrupting power supply in

Uttar Pradesh Uttar Pradesh ( ; UP) is a States and union territories of India, state in North India, northern India. With over 241 million inhabitants, it is the List of states and union territories of India by population, most populated state in In ...

Haryana Haryana () is a States and union territories of India, state located in the northern part of India. It was carved out after the linguistic reorganisation of Punjab, India, Punjab on 1 November 1966. It is ranked 21st in terms of area, with les ...

West Bengal West Bengal (; Bengali language, Bengali: , , abbr. WB) is a States and union territories of India, state in the East India, eastern portion of India. It is situated along the Bay of Bengal, along with a population of over 91 million inhabi ...

Assam Assam (, , ) is a state in Northeast India, northeastern India, south of the eastern Himalayas along the Brahmaputra Valley, Brahmaputra and Barak River valleys. Assam covers an area of . It is the second largest state in Northeast India, nor ...

and

Punjab Punjab (; ; also romanised as Panjāb or Panj-Āb) is a geopolitical, cultural, and historical region in South Asia. It is located in the northwestern part of the Indian subcontinent, comprising areas of modern-day eastern Pakistan and no ...

, among other states. After the power failures, then-Power Minister Veerappa Moily said that transmission grids would be independently audited in three months to ensure that the grids were fail-safe.

PowerGrid InvIT initial public offering

In late April 2021, PowerGrid floated an offer for sale via the Infrastructure Investment Trust (InvIT) route. The offer opened on 29 April and closed on 3 May, by which the initial public offering was subscribed 4.83 times. This was the second InvIT initial public offering in the country.

Historical landmarks

Following are the historical landmarks in the lifetime of the company from the date of formation: 2008 - completed the 220 KV Double Circuit Transmission line from Pul-e-Khumri to Kabul Transmission System in Afghanistan. 2006 - Commissioned the unified load despatch and communications scheme for the western region and also entered into an agreement with REC and certain state governments and state utilities for undertaking rural electrification works under the Rajiv Gandhi Grameen Vidyutikaran Yojana in nine states in India. 2005 - Commissioned the unified load despatch and communications scheme for the eastern region. 2003 - Entered into a joint venture arrangement with the Tata Power Company Ltd for implementing a part of the entire transmission system associated with Tala Hydro-Electric Project, was the first public-private sector initiative in the transmission sector and commissioned the 400 KV Raipur-Rourkela line transmission line developed by it and also securing their first international consultancy contract from Bhutan Telecommunications. 2002 - Commissioned the unified load dispatch and communications schemes for the northern and southern regions and also commissioned the 2,000 MW Talchar-Kolar bipolar HVDC link developed by it. 2001 - Department of Telecommunications, GoI, granted Infrastructure Provider II license (IP II), to pursue leasing of bandwidth capacity to various customers on their telecommunications network. 1996 - Acquired the management of the remaining two regional load despatch centres, the Northern Regional Load Despatch Centre and the Western Load Despatch centre. 1995 - Acquired the management of the Eastern Regional Despatch Centre and the North Eastern Load Despatch Centre. 1994 - Took over the management of Southern Regional Load Despatch Centre and transmission assets from Neyveli Lignite Corporation Ltd were transferred to the company.

Notes

External links

Official Website

{{Authority control Electric power transmission system operators in India Converter stations Electric power transmission infrastructure in India Ministry of Power (India) Government-owned companies of India Companies based in New Delhi Energy companies established in 1989 Indian companies established in 1989 NIFTY 50 BSE SENSEX 1989 establishments in Haryana Companies listed on the National Stock Exchange of India Companies listed on the Bombay Stock Exchange