REDSTONE CONCENTRATED SOLAR THERMAL POWER PLANT
Powering Tomorrow. Sustainable Energy for a Cleaner World!
Sustainable and Clean Energy Supply: Lighting the Way to a Brighter Tomorrow!
100MW Power Capacity.
South Africa’s largest renewable energy project.
Power supplied to more than 200,000 South African homes.
Power Generated
Solar Irradiation per year
Thermal Storage System
Est. CO2 emmission savings per year
ABOUT US
Redstone : Clean Energy Supply
The 100 MW Redstone Concentrated Solar Power (CSP) Tower project forms part of South Africa’s Renewable Energy Independent Power Producer Programme (REIPPP).
The project was awarded the preferred bidder status in 2015, First synchronization is expected in 4th Quarter 2023.
A consortium led by ACWA Power, has developed the Redstone CSP Independent Power Project, located in Northern Cape Province, 600 km west of Johannesburg in the Republic of South Africa.
With years of experience in the industry, we are committed to delivering exceptional results that exceed our clients’ expectations.
Key Project Information
The project will generate power by using Concentrated Solar Power “CSP” tower technology and generate 100 MW net power to the grid.
Redstone CSP project will have 12 hours of thermal storage, which is the largest in Africa and will be amongst the most efficient solar thermal power plants in the world.
Redstone CSP
Environmental Impact
Our key aim with respect to the environmental and social issues arising from with CSP plants, is to appropriately reduce negative and harmful impacts on people and the environment and enhance the positive impacts through effective consultation with the locally community, during both construction and operation phases.
Co2
Eliminates the emission of more than 480 ktons of CO2 each year
ZERO
Harmful Emissions
ZERO
Effluent Discharge (Wastewater)
H2o
Uses less than 200 000m3 of water per year (dry-cooled condenser)
Redstone CSP
Key Plant Features
Project Site
The project site is located on the remainder of Farm 469, the Hay District (Administration District), approximately 5 km southeast of the Groenwater community and 30km east of Postmasburg.
Redstone CSP
Socio-Economic Development
During the lifetime of the project, R575 million will be spent towards socio-economic development programmes.
Construction Peak Phase
Commisioning Phase
Operational Phase
36 Months
A total of 1,900 jobs will be created, with 700 of them sourced from the local community.
6 Months
A total of 685 jobs will be created, with 419 of them sourced from the local community.
20 Years
A total of 100 jobs will be created, including 40 permanent subcontractor opportunities.
Our Vision
"We strive to create sustainable value for our stakeholders and communities through robust management systems driving continuous improvement."
Redstone CSP
Sustainability & Social Responsibility
During the lifetime of the project, R575 million will be spent towards socio-economic development programmes.
Redstone CSP
Sustainability & Social Responsibility
During the lifetime of the project, R575 million will be spent towards socio-economic development programmes.
Redstone CSP
Job Creation
The aim of Economic Development is to create employment opportunities for residents, alleviate poverty and redistribute resources and opportunities to the benefit of all host communities.
1.3 jobs/MW Indirect & Induced employment
Expected to create over 1500 jobs during construction phase at peak (30 jobs/MW installed incl. indirect jobs)
About 60 permanent jobs created in the operations and maintenance phase; 1.0 jobs/MW installed
Procurement during construction (non-financing spend)
REDSTONE CSP
Redstone Projects
ACWAPower Redstone Holding, Central Energy Fund, Public Investment Corporation, Pele Green Energy, Humansrus Community Trust.
EPC Consortium
SEPCO III in joint & several, arrangements with Power China along with Natendo as a BEE shareholder.
Shareholding & Stakeholders
ACWAPower Redstone Holding, Central Energy Fund, Public Investment Corporation, Pele Green Energy, Humansrus Community Trust.
Off-taker (PPA)
Eskom Holdings SOC Ltd, SCOD + 20 years, Parties: Eskom and Project Company.
O&M Contractor
NOMAC
Redstone CSP
Additional Plant Features
Technology
The heliostat field, featuring over 1 million square meters of mirrors, surrounds a CSP tower with a molten salt thermal receiver that reaches a height of 250 meters, making it the tallest in Africa. This advanced molten salt storage capacity enables the plant to generate energy for an additional 12 hours after sunset at full load.
Molten Salt Receiver
The receiver assembly, installed at the top of the tower, converts solar radiation reflected onto it into thermal energy. It consists of cylindrical tubes that act as a heat exchanger, heating up the molten salts flowing through them.
Thermal Energy Storage
The plant utilizes 30,500 tons of potassium and sodium nitrate salt stored in two tanks—one hot and one cold. The hot tank reaches temperatures of 566°C, while the cold tank maintains 290°C. This system allows the plant to bank solar energy during the day and release it at night or as needed.