HomeBiggest projectsRedstone Concentrated Solar Power Project Updates

Redstone Concentrated Solar Power Project Updates

The Redstone Concentrated Solar Power (CSP) project developers in South Africa have made the first loan repayment after borrowing US$ 770M from a variety of development banks and private investors.

The monies mobilization was facilitated by African Development Bank (AfDB) on behalf of the project’s developers, Saudi Arabian independent power producer (IPP) Acwa Power, South African Pele Green Energy, Central Energy Fund, and the local community.

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The AfDB has allocated more than US$ 152M to the Northern Cape project while the remainder of the funding is provided by development banks, including the UK’s CDC Group, Germany’s Deutsche Investitions-und Entwicklungsgesellschaft (DEG), the Netherlands’ Nederlandse Financierings-Maatschappij voor Ontwikkelingslanden (FMO), and South Africa’s Industrial Development Corporation (IDC).

Absa Bank, Investec Bank, Nedbank, and Sanlam are among the private investors involved in the funding of the Redstone Concentrated Solar Power (CSP) project.

The solar thermal project site has been under construction for nine months. Engineering work is more than 58% complete, while procurement and construction are more than 45% and 6% complete, respectively, according to the AfDB. The tower’s foundation has already been completed, representing a significant construction milestone. At this rate, the PSC might be operational in the fourth quarter of 2023.

Redstone Concentrated Solar Power (CSP) Project Overview

The Redstone concentrated solar power project is being developed by a consortium of SolarReserve-a leading energy solution provider in Africa, and ACWA Power-a developer, investor, and operator of power generation and desalinated water production plants, on a 648 hectares piece of land in the Humansrus Solar Park located towards the east of Postmasburg, Northern Cape Province.

The 100MW project has a 250m-tall central receiver tower with a 12-hour full-load energy storage capacity that allows for the storage of heat energy harvested from the sun. The tower employs ThermaVault technology which combines solar thermal technology with molten salt energy storage technology. This feature enables energy dispatch after sunset and provides energy supply during peak demand periods, helping to prevent power interruptions and load shedding.

Upon completion, the project will provide approximately 200,000 South African households with clean and reliable energy owing to a 20-year power purchase agreement signed with South Africa’s state-owned utility Eskom, and help to offset around 480,000 tons of carbon per year – equivalent to the per capita emissions of 67,000 South Africans.

Reportedly, this is the country’s first renewable energy plant to provide auxiliary services. The initiative has been verified by the Climate Bonds Standard and Certification Scheme and is in line with the goals of the Paris climate accord, which aims to keep global warming to less than 2°C.

Aug 2021

Redstone CSP project in South Africa to get US$ 50M boost

CDC Group (“CDC”), the UK’s development finance institution (DFI) and impact investor, has announced a US$ 50M project finance direct debt investment to Redstone Concentrated Solar Power (CSP) project in South Africa.

The project is also supported by other investors such as the African Development Bank (AfDB), Absa Bank, Development Bank of Southern Africa (DBSA), Nedbank, Nederlandse Financierings-Maatschappij voor Ontwikkelingslanden (FMO), Deutsche Investitions- und Entwicklungsgesellschaft (DEG), Investec Bank, Sanlam Life Insurance, Pele Green Energy, the Government-owned Central Energy Fund, and a Community Trust aimed at benefitting the immediate area of the project.

The lender partnership has resulted in an investment of approximately US$ 800M in the Redstone Project, making it one of the largest project finance deals ever done in the Southern Africa Country.

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