A combined cycle power plant is an assembly of heat engines that work in tandem from the same source of heat, converting it into mechanical energy. On land, when used to make electricity the most common type is called a combined cycle gas turbine (CCGT) plant. The same principle is also used for marine propulsion, where it is called a combined gas and steam (COGAS) plant. Combining two or more thermodynamic cycles improves overall efficiency, which reduces fuel costs.
Cogeneration or combined heat and power (CHP) is the use of a heat engine or power station to generate electricity and useful heat at the same time.
Vedanta Limited is an Indian multinational mining company headquartered in Mumbai, India, with its main operations in iron ore, gold and aluminium mines in Goa, Karnataka, Rajasthan and Odisha.
Hindalco Industries Limited an Indian aluminium and copper manufacturing company, is a subsidiary of the Aditya Birla Group. Its headquarters are at Mumbai, Maharashtra, India.
The Calcutta Electric Supply Corporation (CESC) is the Kolkata-based flagship company of the RP-Sanjiv Goenka Group, born from the erstwhile RPG Group, under the chairmanship of businessman Sanjiv Goenka. It is an Indian electricity generation and the sole distribution company serving 567 square kilometres (219 sq mi) of area administered by the Kolkata municipal corporation, in the city of Kolkata, as well as parts of Howrah, Hooghly, 24 Parganas (North) and 24 Parganas (South) districts in the state of West Bengal. It also serves power distribution in Kota, Bikaner and Bharatpur in Rajasthan under the name CESC RAJASTHAN. It serves 3.0 million consumers approximately, which includes domestic, industrial and commercial users.
Hub Power Company Limited, colloquially known as HUBCO, is the first and largest Pakistani Independent Power Producer (IPP) with a combined installed power generation capacity of 3250 MW.
Glanford Brigg Power Station is a gas-fired power station in North Lincolnshire, England. It is capable of firing diesel as a substitute of natural gas. It is situated on the River Ancholme, beside the Sheffield to Cleethorpes via Brigg Line, outside the town of Brigg, with its name coming from the former name for the town. It has a generating capacity of 240 megawatts (MW).
South Humber Bank Power Station is a 1,365 MW gas-fired power station on South Marsh Road at Stallingborough in North East Lincolnshire north of Healing and the A180 near the South Marsh Road Industrial Estate. It is around two miles east of Immingham, and employs 64 people. The site of SHBPS is around 500 metres by 400 metres in area. It is next door to the Synthomer plant.
Seabank Power Station is a 1,140 MW gas-fired power station at Hallen Marsh in Bristol, England. It is situated beside the A403 road and Severn Estuary, just north of Avonmouth and south of Severn Beach, close to the boundary with South Gloucestershire. It is next to the former Terra Nitrogen Severnside fertiliser works, which was closed by Growhow UK in January 2008.
The economy of Gujarat, a state in Western India, has significant agricultural as well as industrial production within India. Major agricultural produce of the state includes cotton, groundnuts (peanuts), dates, sugar cane, milk and milk products. Gujarat recorded the lowest unemployment rate in India in 2015, with 1.2% of the labour force being unemployed.
BGR Energy Systems Limited is a company headquartered at Chennai, operating in the utility industry, offering services ranging from product manufacturing to project execution. The company operates in two segments: capital goods and construction and engineering procurement construction (EPC) Contracts.
Carrington Power Station is a combined cycle gas turbine power station, which was completed in Autumn 2016 and began commercial operation on 18 September 2016. It is located on the site of a former coal-fired power station, close to the villages of Carrington and Partington in the Greater Manchester Area and 12 km (7.5 mi) southwest of Manchester City Centre. The Manchester Ship Canal and the River Mersey run alongside the site, in Trafford, Greater Manchester, in North West England.
Repowering is the process of replacing older power stations with newer ones that either have a greater nameplate capacity or more efficiency which results in a net increase of power generated. Repowering can happen in several different ways. It can be as small as switching out and replacing a boiler, to as large as replacing the entire system to create a more powerful system entirely. There are many upsides to repowering.
NTPC Limited, formerly known as National Thermal Power Corporation, is an Indian central Public Sector Undertaking under the ownership of the Ministry of Power and the Government of India, who is engaged in the generation of electricity and other activities. The headquarters of the PSU are situated at New Delhi. NTPC's core function is the generation and distribution of electricity to State Electricity Boards in India. The body also undertakes consultancy and turnkey project contracts that involve engineering, project management, construction management, and operation and management of power plants.
Gujarat Mineral Development Corporation Limited (GMDC) is a major Indian state-owned minerals and lignite mining company based in Ahmedabad. GMDC was founded in 1963.
ISGEC Heavy Engineering Ltd is an Indian heavy engineering company. Established in 1933 as Saraswati Sugar Syndicate, the company held a revenue of ₹5,477 crore (US$690 million) in 2021 with exports to approximately 91 countries. It was ranked 252 in the ET 2021 listing, and 253 in the Fortune India 500 Listings.
BSES Kerala Power Limited is an independent power producer incorporated on 4 April 1996. It was established as a joint-venture by Bombay Suburban Electricity Supply (BSES) and Kerala State Industrial Development Corporation Ltd (KSIDC). In December 2006, the Reliance Infrastructure bought stake in KSIDC and thus BSES Kerala Power became a wholly owned subsidiary of Reliance Infrastructure. The company is engaged in the activity of power generation. It operates one naphtha based Combined Cycle power plant at Udyogmandal, Kochi.
Deepak Nitrite Ltd. is an Indian chemical manufacturing company. The company’s manufacturing facilities are located at Nandesari and Dahej in Gujarat, Roha and Taloja in Maharashtra and Hyderabad in Telangana. Deepak Nitrite produces a spectrum of chemicals, including agrochemicals, colourants, rubber, pharmaceuticals, speciality and fine chemicals. Deepak Mehta is the chairman of the company and his son Maulik Mehta is the chief executive officer.
Gujarat Alkalies and Chemicals Limited (GACL) is an Indian chemical substance manufacturing company, promoted by the Government of Gujarat. Its manufacturing facilities are located at Dahej and Vadodara in Gujarat. The company manufactures chemicals such as caustic soda, sodium cyanide, chloromethanes, sodium ferrocyanide, caustic potash, potassium carbonate, hydrochloric acid, phosphoric acid (85%) and hydrogen peroxide.
₹1,378 crore (US$170 million) (2020) [1] 
₹247 crore (US$31 million) (2020) [1] 
