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Unlocking South Africa’s energy independence with grid transformation

10th July 2025

     

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As we commemorate Global Energy Independence Day on 10 July 2025, SUNGROW, a global leader in renewable energy inverter and energy storage technology, emphasises the critical importance of grid transformation in South Africa’s journey towards a sustainable and independent energy future. The nation’s ambitious shift from its coal-dominated past to a diverse, renewable-rich energy mix hinges on a modernised, resilient grid capable of seamlessly integrating distributed power sources.

South Africa currently struggles with persistent energy challenges, including recurrent load-shedding, an ageing grid infrastructure, and an over-reliance on coal for over 80% of its power. While the Integrated Resource Plan (IRP) 2019 sets a clear roadmap for increasing renewable energy, the existing grid, originally designed for centralised generation, is suffering a major bottleneck. Funding for the estimated R390 billion required for grid upgrades is not forthcoming, making the need for innovative solutions and collaborations more urgent.

Virtual Power Plants (VPPs) emerge as a viable solution. By intelligently accumulating dispersed energy resources such as solar PV, wind, and battery storage into a single, cohesive system, VPPs can dramatically enhance grid stability, mitigate the intermittent supply of renewable energy sources, and improve overall grid flexibility. This approach is vital in achieving South Africa's target of 24.7% renewable energy by 2030, thereby reducing dependence on fossil fuels, and extending energy access to underserved communities.

SUNGROW, with over 28 years of pioneering sustainable power solutions and 740 GW of power electronic converters installed worldwide, is at the forefront of this transformation. Recognised as the most bankable energy storage company by BloombergNEF, SUNGROW’s cutting-edge inverter technologies are designed to address the complexities of modern grids.

Products such as the ST5015UX battery-inbuilt PCS system demonstrate this, offering robust grid support capabilities such as weak grid operation, advanced fault ride-through, and Virtual Synchronous Generator (VSG) functionality, which actively contributes to grid stability through voltage and frequency adjustment. These innovations enable real-time energy management, thereby optimising the interplay between variable supply, demand, and storage.

“South Africa’s energy independence is not just about generating more renewable power; it’s about ensuring that power can be reliably delivered across a smart, flexible grid,” says

Eric Song, Director of Sub-Saharan Africa. “Our advanced grid-forming and grid-supportive inverter solutions are engineered to meet these precise needs to transform the grid from a passive network into an active participant in the energy transition. We believe that through strategic public-private partnerships, robust regulatory frameworks, and the sharing of global expertise, South Africa can unlock its full renewable energy potential and secure a stable, sustainable energy future for all its citizens.”

SUNGROW remains committed to providing clean power for all by utilising its dynamic R&D team (40% of its personnel) to deliver unparalleled technology and service. The company's commitment extends to facilitating local industrialisation and knowledge transfer in order to align with the objectives of institutions such as the CSIR Energy Research Centre in building a resilient and decentralised energy landscape for South Africa and the wider African continent.

Edited by Creamer Media Reporter

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