South Africa’s transition toward a more diversified and sustainable energy future has taken another significant step forward with the commencement of construction on a new 75MW solar power facility at the Lethabo Power Station in the Free State.
The R1.2 billion project, developed by Eskom, is expected to generate approximately 147GWh of electricity annually—enough to supply around 60,000 households—while contributing to the country’s long-term energy security and decarbonisation objectives.
The development marks one of the most tangible examples of how South Africa’s state-owned utility is leveraging existing coal-fired power station infrastructure to integrate renewable energy generation into its portfolio as the country pursues a balanced energy transition.
Building on Improved Grid Stability
The launch of the Lethabo solar project comes amid improving operational performance within Eskom’s generation fleet.
Speaking at the groundbreaking ceremony, Eskom Group Chief Executive Officer Dan Marokane highlighted the utility’s recent achievement of maintaining electricity supply without load shedding for an extended period, attributing the improvement to the successful implementation of its Generation Recovery Plan.
According to Marokane, the improved stability of South Africa’s electricity system provides a stronger platform for integrating renewable energy sources into the national grid while supporting future economic growth.
The project aligns with South Africa’s energy planning framework and the country’s broader efforts to diversify electricity generation sources while maintaining reliable power supply.
Renewable Energy at Existing Power Stations
The Lethabo solar facility forms part of Eskom’s broader renewable energy programme aimed at utilising existing power station sites and transmission infrastructure to accelerate deployment and reduce development costs.
Eskom’s Group Executive for Renewables, Rivoningo Mnisi, described the project as a significant milestone in the utility’s renewable energy pipeline and an important component of South Africa’s Just Energy Transition strategy.
By integrating solar generation within existing coal power station footprints, Eskom aims to optimise available infrastructure while reducing the carbon intensity of electricity production.
The approach also supports a gradual transition that balances environmental objectives with energy security considerations.
Part of a Larger Renewable Expansion Plan
The Lethabo project is only one component of a much larger renewable energy programme currently under development.
According to Eskom, the utility has identified 17 priority renewable energy projects that are expected to be implemented across several existing power station sites, including Arnot, Duvha, Majuba, Tutuka, Komati, Kendal, Kusile, Hendrina, Camden, Grootvlei and Lethabo.
Collectively, these projects are expected to add approximately 6GW of new generation capacity by the end of the decade.
The initiative forms part of Eskom’s construction-ready pipeline of at least 2GW of renewable energy and pumped-storage projects scheduled to advance during 2026.
The strategy reflects a growing recognition that renewable energy will play an increasingly important role in meeting South Africa’s future electricity demand while supporting national climate commitments.
Economic Development and Job Creation
Beyond its contribution to electricity generation, the project is expected to create significant economic opportunities during both the construction and operational phases.
Large-scale infrastructure projects of this nature typically generate employment opportunities across engineering, construction, maintenance, logistics, and technical services, while also creating demand for local suppliers and contractors.
Skills development is expected to be another key outcome, particularly as South Africa seeks to build expertise in renewable energy technologies and project management.
The investment therefore supports not only energy security but also broader economic development objectives within local communities.
Financing the Energy Transition
Unlike many large-scale renewable projects that rely heavily on external financing, Eskom has indicated that funding for the Lethabo project and other priority developments has already been accommodated within its approved capital expenditure programme.
The projects will be financed through on-balance-sheet funding structures consistent with National Treasury debt-relief conditions, avoiding additional project-finance borrowing.
This funding approach is intended to support infrastructure expansion while maintaining financial discipline as Eskom continues its operational recovery.
Looking Beyond Solar
While solar power forms an important pillar of Eskom’s renewable energy strategy, the utility’s long-term plans extend beyond photovoltaic generation.
Through its Eskom Green initiative, the company intends to pursue partnerships, acquisitions, and co-development opportunities across multiple renewable technologies, including wind energy, battery energy storage systems (BESS), pumped-storage facilities, and emerging green hydrogen projects.
The objective is to create a diversified generation portfolio capable of responding to changing electricity demand patterns while reducing emissions and supporting customer decarbonisation goals.
A New Chapter for South Africa’s Energy Sector
The commencement of construction at Lethabo represents more than the addition of a new solar facility. It signals the evolving role of Eskom as it seeks to balance the realities of a coal-dependent energy system with the growing imperative for cleaner and more sustainable sources of power.
With more than 32GW of renewable energy and storage projects identified for potential development by 2040, the utility is positioning itself to play a central role in South Africa’s energy transition.
If successfully implemented, projects such as Lethabo could help strengthen electricity security, create new economic opportunities, and support the country’s long-term ambition of building a more resilient, diversified, and lower-carbon energy system.