REISA Kathu Solar Power Project, South Africa

Developing one of the first utility-scale solar PV projects in South Africa.

Client

Renewable Energy Investments South Africa (REISA)

Project date

2012 - ongoing

The 75 MW Kathu solar photovoltaic (PV) project was developed under the first round of South Africa’s Renewable Energy Independent Power Producer Procurement Programme (REIPPPP). As one of the country’s earliest utility-scale solar PV projects, it marked a significant milestone in the transition to clean energy.

The opportunity

In 2012, Zutari was appointed as the owner’s engineer for the project. At the time, South Africa’s renewables industry was still in its infancy, and the harsh conditions of the Northern Cape posed additional challenges. The opportunity lay in delivering a pioneering solar PV facility that would contribute to diversifying the national energy mix and reducing reliance on fossil fuels.

What we did

Zutari’s role included:

  • Construction and commissioning supervision

  • Technical assistance during commercial operations

  • Ongoing performance monitoring and technical support


The team conducted rigorous inspections to protect equipment and ensure optimal performance and safety. In 2020, Zutari applied advanced digital technologies to analyse plant data, helping to understand operational behaviour and improve asset management.

A bespoke digital tool was developed to:

  • Interpret plant data

  • Identify performance trends

  • Predict future energy output

  • Optimise asset management strategies

Aerial view of the Kathu solar PV plant, one of South Africa’s first utility-scale renewable energy facilities.

The outcome

The project produced its first kilowatt-hour in August 2014, a landmark moment for REISA and Zutari. It continues to supply clean energy to South Africa’s grid, supporting sustainability and energy security. The digital innovations introduced have enhanced operational efficiency and informed long-term planning.

The REISA Kathu Solar Power Project stands as a flagship example of how early investment in renewable energy can deliver lasting impact. Zutari’s continued involvement reflects its commitment to supporting sustainable infrastructure and empowering communities through clean energy.

“What started as an infrastructure appointment in 2012 has become a collaborative and supportive journey that not only adds clean energy to South Africa’s fossil-fuel dependent, heavily constrained grid but also uplifts communities and is helping us prepare the country for a more sustainable future.”

Paul Nel

Chief Executive Officer, AutoPV

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