Kelvin Power Station is a coal-fired power station, located in Gauteng near OR Tambo International Airport.

Kelvin is one of only a few power stations in South Africa not owned by Eskom.

Until 2001 the power station was the property of the City of Johannesburg, but it has since been privatised, resold a number of times, and is currently owned by Investec and Nedbank Capital.

The A station (shut down in 2012) has six 30MW generators and 11 chain grate boilers.

The newer B station has seven 60MW generators and seven PF type boilers.