South Africa - Redstone 100MW Concentrated Solar Power (CSP) Project

Project Summary

Approval Date 29 Nov 2018
Signature Date 31 Jul 2019
Sovereign / Non-Sovereign Non Sovereign
Sector Power
DAC Sector Code 23230
Environmental Category 2
Commitment U.A 106,128,885.69
Status Implementation

Project General Description

The Redstone Concentrating Solar Power Plant (CSP) Project is designed to design, build, operate and maintain a 100 MW capacity concentrated solar power plant. It is expected to close the energy supply gap, reduce dependence on coal, limit carbon emissions, create local jobs, and develop a national solar energy industry. Redstone's capacity will be increased, with a thermal storage potential increased to 12 hours (1,200 MWh), a relatively economical option compared to battery storage used in photovoltaic solar power plants. The thermal storage system will allow the Redstone CSP (100 MW) to operate at full capacity for 12 hours in the absence of solar radiation (after sunset or on temporary cloudy days). The project will provide the country with access to clean energy and reduce peak-hour production costs, and will be carried out by experienced private sector developers and contractors, particularly ACWA and Solar Reserve.

Project Objectives

The purpose of the project is to add 100 MW of new, reliable, dispatchable, solar energy generation capacity, thus closing the energy supply gap, reducing dependence on coal, saving carbon emissions, generating local employment, and building a domestic solar power industry.


The main beneficiaries of the project are the people of the Northern Cape Province and ultimately all the people of South Africa.

Participating Organization

African Development Bank


IATI identifier 46002-P-ZA-FF0-001
Last Update 03 Oct 2022


Contact Details


Geographic Location

Country South Africa
Coordinates Location Name
-29.5 22 Province of Northern Cape