KaXu Solar One is a 100MW parabolic trough plant near Pofadder in Northern Cape. The power station will have a storage capacity of two and a half hours and use molten salt to store heat energy.

In the parabolic trough system, the sun's energy is concentrated by parabolically curved, trough-shaped reflectors onto a receiver pipe running along the focal line of the curved surface. This energy heats oil flowing through the pipe, and the heat energy is then used to convert water to steam and generate electricity in a conventional steam generator.

Molten Salt Thermal Storage