The Kathu Solar Thermal Park – Thermal Energy Storage Project is a 100,000kW energy storage project located in Kathu, Northern Cape, South Africa.

The thermal energy storage project uses molten salt as its storage technology. The project was announced in 2015 and was commissioned in 2019.


The Kathu Solar Thermal Park – Thermal Energy Storage Project was developed by GDF SUEZ Energies France . The project is owned by Investec Bank (UK) , a subsidiary of Investec, Lereko Metier Sustainable Capital Managers , Public Investment , SIOC Community Development SPV and GDF SUEZ Energies France (49%), a subsidiary of Engie .

The key applications of the project are electric supply capacity, onsite renewable generation shifting and renewables energy time shift.

Contractors involved

GDF SUEZ Energies France, Investec Bank (UK), Lereko Metier Sustainable Capital Managers, Public Investment, SENER Grupo de Ingenieria and SIOC Community Development SPV have delivered the project.

Additional information

The project is funded by a mix of debt and equity. The debt is funded from a club of South African banks, namely Rand Merchant Bank , NedBank Capital , Absa Capital , Investec and the Development Bank of South Africa.


All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.