In The Spotlight
GE Vernova opens new Morocco hub to support power transmission services globally (Image source: Adobe Stock)
Energy Vault Holdings, Inc. has entered into a strategic development agreement with Eskom Holdings SOC Limited to introduce a large-scale gravity energy storage system in South Africa, marking a major step in the region’s transition toward cleaner and more resilient energy infrastructure
The first gravity energy storage system (GESS) project will be developed at Eskom’s Hendrina Power Station in Mpumalanga, among the country’s oldest operational coal-fired facilities. The installation is expected to deliver 25MW of power capacity with four hours of storage, representing 100MWh in total, while also offering future scalability of up to 4GW.
The agreement establishes a long-term collaboration between the two organisations aimed at accelerating the decarbonisation of Southern Africa’s electricity sector. Under the partnership, Energy Vault will supply its EVx 2.0 gravity storage technology alongside engineering expertise, project execution services and localised workforce training.
The companies also plan to jointly license and expand the deployment of up to 4GWh of gravity-based energy storage capacity throughout the 16-member Southern African Development Community (SADC) region by 2035.
Energy Vault’s EVx 2.0 platform introduces several upgrades compared to earlier versions of the technology, particularly in areas such as software coordination, mechanical performance, energy efficiency and automated construction processes. The updated design enables deployment at multi-gigawatt scale to support growing renewable energy penetration across electricity networks.
A notable feature of the technology is its ability to repurpose coal ash into large storage blocks weighing between 25 and 30 tonnes, creating an alternative use for combustion waste materials while supporting more sustainable infrastructure development.
“This landmark agreement with Eskom represents a transformational milestone for Energy Vault and for Africa’s energy future,” said Robert Piconi, chairman and CEO.
“By combining our breakthrough EVx 2.0 platform with Eskom’s extensive power generation, grid expertise and regional reach, we’re not only advancing long-duration storage at unprecedented scale but also pioneering a new model for sustainable industrial development. This partnership will create local jobs, establish resilient supply chains, and demonstrate how gravity energy storage can accelerate Africa’s transition from coal dependency to energy independence and security — all while delivering reliable, affordable power to communities that need it most.”
The initiative aligns closely with Eskom’s Just Energy Transition Partnership (JETP), which seeks to reduce dependence on coal while maintaining energy reliability, encouraging economic participation and supporting employment opportunities.
"Eskom is committed to reducing the environmental impact of its electricity generation activities and will continuously drive projects to support South Africa’s local and global emission reduction targets and transition responsibly. Eskom’s strategy is designed to position us as a resilient and competitive energy leader in a liberalised energy market."
"We will drive a just and inclusive energy transition that includes intensifying the repowering and repurposing of coal power stations and exploring clean coal technologies and solutions using technology as a strategic enabler to improve efficiencies and lower the cost of electricity. This partnership with Energy Vault and its innovative gravity storage technology will play a pivotal role in achieving our Just Energy Transition goals,” said Dan Marokane, group CEO, Eskom Holdings.
Southern Africa’s energy sector continues to evolve as governments and utilities pursue wider access to reliable and sustainable electricity. Electricity access across the SADC region has increased to 56% of the population, compared to 36% a decade earlier, reflecting expanding infrastructure investment and regional cooperation efforts.
Although coal still accounts for more than 80% of South Africa’s electricity generation, countries across the region are increasingly investing in renewable energy and storage technologies to diversify supply, strengthen grid resilience and improve long-term energy security. Utility-scale storage solutions are expected to become increasingly important in supporting renewable integration while also contributing to industrial growth, job creation and community development initiatives.
Kumba Iron Ore advances decarbonised mining through renewable energy, wheeling innovation and community inclusion
The launch of the Koruson 2 (K2) renewable energy cluster in South Africa’s Eastern Cape highlights Kumba Iron Ore’s continued focus on sustainable mining and cleaner energy solutions through its collaboration with Envusa Energy
Envusa Energy, a joint venture between Anglo American and EDF power solutions, is advancing the delivery of dependable and competitively priced renewable energy for South Africa’s energy-intensive sectors. The K2 cluster adds 520 MW of combined wind and solar capacity to the grid and forms part of the company’s wider target to develop between 3 GW and 5 GW of renewable energy by 2030.
For Kumba, the partnership is already generating measurable environmental, operational and financial gains.
“Our partnership with Envusa Energy allows Kumba to decarbonise our operations while strengthening the resilience and competitiveness of our business. It is a practical demonstration of how renewable energy can support both mining and South Africa’s economic future,” said Mpumi Zikalala, CEO Kumba Iron Ore.
At the Kolomela Mine in the Northern Cape, renewable energy now supplies around 72% of the site’s electricity demand, significantly lowering dependence on carbon-intensive grid power. Alongside emissions reductions, the mine also achieved financial savings, with approximately R600,000 (approx.US$30,000) saved during March alone.
Through the Sishen Iron Ore Company Community Development Trust (SIOC CDT), local communities are able to share in the value generated by both mining and renewable energy developments. The Trust maintains equity ownership in Kumba and is also set to hold a 10% stake in the Sishen solar project, supporting long-term investments in healthcare, education, infrastructure and livelihood programmes.
The K2 cluster also showcases how cooperation between industry, communities and government can help tackle South Africa’s energy constraints. Using an innovative wheeling model that enables renewable electricity to move across the national grid, the project is expected to strengthen energy security while supporting faster decarbonisation across major industries.
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In the final webinar of its African Review-hosted 2023 campaign, Convergent Group explored its modern, eco-friendly concrete solutions for African projects
Such solutions – delivered to cut maintenance costs by eliminating hazardous silicate products – were showcased by company experts in the form of Jean-Claude Biard, SEO of Convergent Group SA; Mputu Schmidt, former CEO of Convergent Group SA and founder of Bondeko MB (exclusive distributor of Convergent Group in Africa); Carlos Garcia, technical and sales for ADI Group (Spanish distributor for Convergent Group); and Amritpal Singh Sura, external consultant for flooring treatments, former distributor of Convergent products in the Middle East.
“A number of projects we were doing in the Middle East required protection,” remarked Sura. “Longevity of protection requires a system which basically impregnates and becomes a densified surface as opposed to something which is topical and lifts off due to moisture migration. I found that being exposed to Convergent, it was important to stay focused on those systems in the Middle East. Jean-Claude, Mputu and I met several times in Dubai and there was emphasis on providing systems which were affordable and still ending up having a robust, lasting longevity of product. So you are not spending money all the time in order to maintain the finishes which you have already paid for.”
Over the course of the session, the participants guided the audience through the potential of cutting-edge lithium silicate technology for enhancing the protection of concrete surfaces, maximising cost-effectiveness and meeting sustainability targets.
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In a comprehensive webinar hosted by African Review, a panel of professionals associated with Convergent Group explored new generation lithium silicate technology and why it is emerging as the optimum solution for concrete floor protection.
Robert Daniels, editor of African Review, was joined by Jean-Claude Biard, CEO of Convergent Group; Mputu Schmidt, former CEO of Convergent and founder of Bondeko MB, an exclusive distributor of Convergent; Hicham Sofyani, president of Texol; Carlos Garcia, technical and sales for ADI Group; and Marc Puig, commercial manager of Comace Import.
Each providing a unique angle, the panellists combined to provide a masterclass around concrete treatments and the increasing challenges around them, explaining to attendees how to choose the right formula for their requirements and touching on issues such as why lithium densifiers are better than sodium and potassium densifiers.
Throughout the session, those watching were treated to informative case studies showcasing how Convergent eco-friendly products are increasing abrasion resistance, raising ease of maintenance, and ensuring the highest quality gloss retention.
By the end of the webinar, a majority of attendees (many of which had not had much experience with Convergent) expressed their interest in using the company’s new generation lithium silicate technology with the rest indicating their desire to learn more about Convergent and its products. Watch the webinar, in full, to discover why viewers were convinced and learn more about advanced floor care solutions for your operations.
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Presenting on an African Review-hosted webinar, Martin Provencher, global industry principal for mining, metals and materials at AVEVA, explored the digital transformation of mining operations and its impact on sustainability.
“Sustainability is becoming a key aspect for mining operations,” remarked Provencher. “If we look at the latest EY research on the top ten business risks and opportunities for mining and metals globally in 2023, ESG remains at the top. Of course, most companies have environmental goals or are expected to reach a net zero emission by 2050, which is a pretty aggressive target. Many of them are targeting 30% reduction by 2030; seven years from now. So there is a lot of action that needs to take place quickly to get there. It is possible to get there, but we need to make sure we are doing this correctly.”
Fast becoming a huge part of ESG initiatives is fleet electrification where particular progress is being made in underground mines. While some countries are certainly more advanced than others here, Provencher noted that 40% of total emissions from the mining industry come from diesel trucks, making EVs a very attractive low-hanging fruit for companies to pursue.
There are, however, a number of challenges associated with bringing in electric vehicles which remains a barrier for introduction. One of the predominant reasons, is the limited range of EVs against diesel counterparts. To mitigate this, Provencher continued, data management is key and ensuring a strong grasp of real-time information coming in will show operators when machinery needs to be charged, allowing them to plan effectively for maximum efficiency on site.
Indeed, this is but a small advantage that digitalisation can bring to the mining industry as it grapples to meet ESG goals while achieving production targets. By getting a better grip of their data and using it to empower tools such as artificial intelligence, advanced analytics and machine learning, companies can achieve tangible benefits such as reduce downtime, enhance worker safety, cut operating costs and, of course, ensure compliance with environmental regulations and targets.
Through the course of the webinar, Provencher outlined this in more detail and explored AVEVA’s suite of cutting-edge software solutions, specifically designed to help mining companies make progress on their digitalisation journey and empower their operations.
Watch the full webinar, completed with detailed case studies and an insightful Q&A session.
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Convergent, in association with African Review, has held a detailed webinar exploring the usage and effectiveness of lithium silicates and densifiers over traditional methods of concrete surface management which often struggle to meet the increasing challenges posed by concrete surface management.
Convergent experts including Mputu Schmidt, CEO of Convergent; Carlos Garcia, product manager end-user solutions, construction chemicals, Spain and Portugal for the RD Group; Matteo Mozzarelli, CEO of concrete Solutions Italia; and Jean-Claude Biard, global senior executive for the Convergent Group, presented across the session.
Together, they delved into the latest cost-effective application methods for long lasting finishing of concrete that can help reduce maintenance costs and avoid unexpected repair action. In addition, they examined the advancements in technologies that can sustain increased abrasion resistant stains and ensure gloss retention to the highest quality.
As part of the webinar, the representatives explored case studies including a case in DRC where a medical centre had been constructed with a low-quality concrete floor. The customer was considering completely replacing the floor but instead, Convergent put forward a special treatment with its 244+ Pentra-Sil lithium hardener, densifier and sealer. With this solution, Convergent can increase the hardness of a surface by up to 40% and therefore saved the customer significant recuperation costs over a complete replacement. Convergent were happy to report that the solution was perfect for the facility and the customer was pleased to avoid the extra construction work that would have been required for a complete replacement.
Watch the full webinar, including more information about Convergent’s innovative solutions.
Energy Vault Holdings, Inc. has entered into a strategic development agreement with Eskom Holdings SOC Limited to introduce a large-scale gravity energy storage system in South Africa, marking a major step in the region’s transition toward cleaner and more resilient energy infrastructure
The first gravity energy storage system (GESS) project will be developed at Eskom’s Hendrina Power Station in Mpumalanga, among the country’s oldest operational coal-fired facilities. The installation is expected to deliver 25MW of power capacity with four hours of storage, representing 100MWh in total, while also offering future scalability of up to 4GW.
The agreement establishes a long-term collaboration between the two organisations aimed at accelerating the decarbonisation of Southern Africa’s electricity sector. Under the partnership, Energy Vault will supply its EVx 2.0 gravity storage technology alongside engineering expertise, project execution services and localised workforce training.
The companies also plan to jointly license and expand the deployment of up to 4GWh of gravity-based energy storage capacity throughout the 16-member Southern African Development Community (SADC) region by 2035.
Energy Vault’s EVx 2.0 platform introduces several upgrades compared to earlier versions of the technology, particularly in areas such as software coordination, mechanical performance, energy efficiency and automated construction processes. The updated design enables deployment at multi-gigawatt scale to support growing renewable energy penetration across electricity networks.
A notable feature of the technology is its ability to repurpose coal ash into large storage blocks weighing between 25 and 30 tonnes, creating an alternative use for combustion waste materials while supporting more sustainable infrastructure development.
“This landmark agreement with Eskom represents a transformational milestone for Energy Vault and for Africa’s energy future,” said Robert Piconi, chairman and CEO.
“By combining our breakthrough EVx 2.0 platform with Eskom’s extensive power generation, grid expertise and regional reach, we’re not only advancing long-duration storage at unprecedented scale but also pioneering a new model for sustainable industrial development. This partnership will create local jobs, establish resilient supply chains, and demonstrate how gravity energy storage can accelerate Africa’s transition from coal dependency to energy independence and security — all while delivering reliable, affordable power to communities that need it most.”
The initiative aligns closely with Eskom’s Just Energy Transition Partnership (JETP), which seeks to reduce dependence on coal while maintaining energy reliability, encouraging economic participation and supporting employment opportunities.
"Eskom is committed to reducing the environmental impact of its electricity generation activities and will continuously drive projects to support South Africa’s local and global emission reduction targets and transition responsibly. Eskom’s strategy is designed to position us as a resilient and competitive energy leader in a liberalised energy market."
"We will drive a just and inclusive energy transition that includes intensifying the repowering and repurposing of coal power stations and exploring clean coal technologies and solutions using technology as a strategic enabler to improve efficiencies and lower the cost of electricity. This partnership with Energy Vault and its innovative gravity storage technology will play a pivotal role in achieving our Just Energy Transition goals,” said Dan Marokane, group CEO, Eskom Holdings.
Southern Africa’s energy sector continues to evolve as governments and utilities pursue wider access to reliable and sustainable electricity. Electricity access across the SADC region has increased to 56% of the population, compared to 36% a decade earlier, reflecting expanding infrastructure investment and regional cooperation efforts.
Although coal still accounts for more than 80% of South Africa’s electricity generation, countries across the region are increasingly investing in renewable energy and storage technologies to diversify supply, strengthen grid resilience and improve long-term energy security. Utility-scale storage solutions are expected to become increasingly important in supporting renewable integration while also contributing to industrial growth, job creation and community development initiatives.
This engineered Weba Chute Systems head chute ensures stable material presentation onto the conveyor, helping to reduce wear and improve long-term operational reliability. (Image source: Weba Chute Systems)
As mining operations push for higher throughput, longer equipment life, and tighter environmental control, the design of transfer points is emerging as a critical factor in overall materials handling efficiency
No longer viewed as a minor component, chute systems are now recognised for their direct influence on plant performance.
According to Dewald Tintinger, technical director at Weba Chute Systems, inadequately designed transfer points can significantly disrupt operations, affecting material flow, belt loading, dust levels, spillage, and the wear rate of downstream equipment.
“A transfer point should never be treated as a static piece of infrastructure,” commented Tintinger. “It is an engineered flow control solution that plays a direct role in throughput stability, maintenance intervals and overall plant reliability.”
He explains that in modern processing environments, transfer points are increasingly being treated as vital control nodes within the entire materials handling system. Poorly managed material movement between conveyors, crushers, screens, or stockpiles can quickly escalate into broader operational challenges.
“Inconsistent flow patterns can lead to uneven belt loading, mistracking, excessive dust and spillage, and accelerated wear on liners, idlers and conveyor belts,” he explained. “These issues inevitably translate into increased maintenance requirements and, in many cases, costly production interruptions.”
Tintinger highlights that successful chute design starts with a thorough assessment of the material itself and the operating conditions. Variables such as particle size distribution, moisture levels, bulk density, abrasiveness, and cohesiveness all influence how materials behave during transfer.
“There is no one-size-fits-all solution,” he said. “Every application must be engineered around the specific flow behaviour of the material as well as the plant’s throughput requirements and space constraints.”
A central design objective is to ensure accurate and stable loading onto the receiving conveyor. If the material trajectory or discharge speed is not properly controlled, it can lead to uneven distribution, causing belt damage, excessive wear on idlers, and reduced conveyor efficiency.
“Correct belt loading is fundamental to conveyor health,” remarked Tintinger. “By controlling the flow path and discharge velocity of the material, we can significantly reduce wear and improve the overall reliability of the conveying system.”
He further notes that well-engineered transfer points also contribute to environmental compliance and workplace safety. By managing dust and spillage at the source, operations can maintain cleaner sites, minimise hazards, and reduce environmental impact.
“Dust and spillage are not simply housekeeping issues; they are often symptoms of poor flow management,” he commented. “By engineering the transfer point correctly, these risks can be mitigated at source rather than managed downstream.”
As mining companies continue to focus on maximising uptime and operational efficiency, transfer point design is shifting from a reactive maintenance issue to a proactive engineering priority.
“Ultimately, every transfer point must support predictable, controlled and efficient material flow,” Tintinger concluded. “When this is achieved, the benefits are seen across the plant in reduced downtime, lower maintenance costs and improved throughput performance.”
Africa Finance Corporation (AFC) has reached financial close and disbursed €43mn under the Poro Power Green Bond, to be used to fund construction of a 66 MW solar power plant in the northern Korhogo region in Cote d’Ivoire
Structured as a €65mn dual-currency facility in euros and CFA francs, it marks the first project finance green bond in Cote d’Ivoire and across the West African Economic and Monetary Union (WAEMU).
The solar power plant, developed by Poro Power, is expected to be operational in 2027 and will become the country’s largest solar plant.
The solar plant is expected to provide electricity to more than 100,000 households and avoid over 72,000 tons of CO2 emissions annually, contributing to greater energy access and the country’s target of increasing the share of renewables in the energy mix to 45% by 2030.
AFC acted as lead underwriter and co-arranger, helping to structure the innovative dual-currency green bond that creates what it called a ‘replicable model’ for mobilising African capital into bankable infrastructure.
It also called the transaction a milestone for Côte d’Ivoire’s capital markets and for African infrastructure more broadly.
Historically, long-term infrastructure financing in the country has depended heavily on international capital.
By contrast, the Poro Power Green Bond was African-led, structured, and fully funded by African institutions.
Samaila Zubairu, president and CEO of AFC, said the Poro Power Green Bond sets a new benchmark for sustainable infrastructure financing in Africa.
“This landmark transaction demonstrates the growing capacity of African institutions to mobilise domestic capital and expertise to deliver transformative infrastructure projects,” said said Zubairu.
“We are not only helping to close the infrastructure gap, but also creating scalable, homegrown financing models that can be replicated across the continent.”
The transaction builds on AFC’s track record in Côte d’Ivoire across the power and transport sectors.
In the energy sector, it includes the 44MW Singrobo-Ahouaty hydropower project, Côte d’Ivoire’s first private hydro independent power producer.
Its investments in the country also include the 1.5km Henri Konan Bédié Bridge, which has eased congestion by 30% since commissioning and improved mobility in Abidjan.
In 2024, AFC also supported the Ivorian government in awarding six road development contracts worth €691.6mn.
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