Eskom is a South African electricity public utility, established in 1923 as the Electricity Supply Commission by the government of South Africa in terms of the Electricity Act.

Kelvin Power Station is a coal-fired power station, located in Gauteng near OR Tambo International Airport. Kelvin is one of only a few privately owned power stations in South Africa.

Sasol Limited is an integrated energy and chemical company based in Johannesburg, South Africa. The company was formed in 1950 in Sasolburg, South Africa, and is the world’s first oil-from-gas company.