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The Soshanguve Value Centre in Pretoria Gauteng, is a 674.61kWp grid-tied rooftop Solareff solar PV solution, implemented as a significant step towards reducing their carbon footprint and overall operating costs.  Commissioned on 1 November 2024, this solution comprises 1,194 solar PV modules and approximately 6 km of DC cable used in the installation. The system is set to generate over 1MWh annually, saving over 600 tons of coal and avoiding more than 1100 tons of CO2 emissions. We are proud to work with the consultants Imbue Sustainability on this project to assist Soshanguve Value Centre in achieving its sustainability goals.

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The North Reef Road project is a 605.1kWp grid-tied rooftop Solar PV solution for a forward-thinking industrial property located in Germiston, Gauteng. Commissioned in 2025, the system harnesses clean, renewable energy to reduce the property’s carbon footprint and operational expenses. By investing in this solar PV solution, our client is enhancing their energy resilience in an increasingly dynamic energy landscape. Solareff remains committed to delivering future-focused energy solutions that empower businesses to build a greener, more efficient tomorrow.

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A recently completed solar installation at a commercial warehouse facility in Germiston, occupied by a leading distributor of premium-branded household appliances. This 153.7kWp solar PV solution, featuring 272 solar panels and a grid-tie inverter system, is already making a measurable impact, helping our client reduce operational costs while supporting their commitment to sustainability.

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The Nelspruit Plaza in Mbombela, Mpumalanga, is now powered by a 449.2kWp grid-tied rooftop solar PV solution designed and installed by Solareff. This system comprises 795 high-performance solar panels, engineered to maximise energy efficiency and reduce the plaza’s dependence on the national grid. As a key retail hub in the region, Nelspruit Plaza’s investment in renewable energy demonstrates a strong commitment to sustainability, operational cost reduction, and long-term energy resilience. This project reflects Solareff’s dedication to delivering future-focused energy solutions that help businesses thrive while contributing to a cleaner, more sustainable planet.

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The Improvon Meadowview site in Johannesburg, Gauteng is a 622kWp Solareff solar PV system paired with an 800kWh BESS. Their tenant, Rhenus Logistics, benefits from the green energy produced and lower operational costs.  This advanced setup comprises of 1,100 solar PV modules and approximately 9km of DC Solar cable. Annually, this solution will save over 547 tons of coal from being burnt and prevent more than 1,000 tons of CO2 emissions from entering the atmosphere. We had the pleasure of collaborating with the consultants at Imbue Sustainability on this project. Together, we are assisting Improvon in achieving its sustainability goals and offering its tenants lower-cost, reliable energy.

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Our record-breaking 6.8MWp solar rooftop PV plant at Boardwalk Inkwazi in Richard’s Bay was the largest rooftop installation in Africa at the time of installation.  For this solution 12580 solar PV modules and 400kms of DC cable were installed. This bespoke engineered solution will generate 1GWh of energy annually resulting in significant electricity cost savings for the shopping centre and avoiding over 215 tonnes of CO2 pollution – a significant step towards reducing Boardwalk Inkwazi’s carbon footprint. Click here to view our project video.

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Hartenbos Waste Water Treatment Works Solar PV Plant and Microgrid

Solareff, in partnership with Element Consulting Engineers and the Mossel Bay Municipality, delivered a groundbreaking hybrid solar PV and microgrid system for the Hartenbos Waste Water Treatment Works. Under normal conditions, it operates in parallel with the Eskom grid. In the event of grid interruptions, the Battery Energy Storage System (BESS) takes over, supported by solar generation during daylight hours. Standby diesel generators provide additional backup if needed. Excess solar energy is fed into the municipal grid, reducing long-term energy costs and boosting sustainability for the Mossel Bay area.

This award-winning project enhances energy resilience for critical municipal infrastructure while supporting South Africa’s clean energy goals.

Project Highlights:

Site Size: 3.5 hectares of municipal land

Location: Hartenbos, Western Cape

System Type: Hybrid grid-tied microgrid with solar PV, battery storage, and diesel backup

Solar Generation Capacity: 2.112MVA from 4,536 PV Panels

Battery Storage: 4,586kWh

BESS Inverter Station Capacity: 2.75MVA

Generator Farm Capacity: 1.6MVA

Substation: Includes 11kV switchgear and advanced control systems that switch seamlessly between solar, battery, and diesel backup.

A standout feature of the Hartenbos Waste Water Treatment Works Solar PV Plant and Microgrid is its advanced Power Plant Controller (PPC), a first-of-its-kind solution developed by Solareff for the South African market. Acting as the intelligence behind the microgrid, the PPC seamlessly manages the interaction between the solar PV plant, battery energy storage system, grid supply, and diesel backup generators. Through real-time monitoring and automated control, the PPC optimises energy use, maximises renewable energy generation, and ensures uninterrupted operations during grid disturbances and outages. This innovative technology sets a new benchmark for municipal energy infrastructure, demonstrating how intelligent energy management can improve resilience, reliability, and sustainability for critical public services.

Click here to watch our project video of this award-wining solution.

Award Recognition

Solareff is proud to have been recognised for excellence in the South African solar industry, receiving the Solar EPC of the Year award at the prestigious SAPVIA Industry Awards Ceremony held on 2 July 2026. Presented by the South African Photovoltaic Industry Association (SAPVIA), the award recognises Engineering, Procurement and Construction (EPC) companies that demonstrate exceptional performance in the successful delivery of solar photovoltaic projects. This achievement was awarded in recognition of Solareff’s delivery of the Hartenbos Waste Water Treatment Works Solar PV Plant and Microgrid, a landmark municipal energy project that exemplifies innovation, technical excellence, and sustainable infrastructure development.

Further reinforcing the project’s impact, the Hartenbos Solar PV Plant and Microgrid was named Top Performing Project at the AMEU Awards 2025. Presented by the Association of Municipal Electricity Utilities (AMEU), these awards celebrate excellence and innovation across South Africa’s municipal electricity sector. The Hartenbos project was recognised for its outstanding contribution to energy resilience, environmental sustainability, and operational excellence in municipal services. As one of South Africa’s leading municipal renewable energy initiatives, the project has set a benchmark for sustainable infrastructure development, demonstrating how innovative energy solutions can strengthen critical public services while supporting the country’s transition to a cleaner energy future.

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Ground Mount Solution in Midstream

2305,6kWp grid-tied solar PV ground-mount solution in Midstream, Gauteng. Annually this solution will save 2334 tons of coal and avoid over 4267 tons of CO2 emissions.

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Soshanguve 4450kWp Solar PV & 5000kWh Battery Energy Storage Solution (BESS)

Solareff, in collaboration with renewable energy consultants Imbue Sustainability, proudly delivered a large-scale microgrid solution in Soshanguve, designed to enhance energy security, stabilise supply, and drive sustainable independence.

Project Overview

The Soshanguve installation features a 4450kWp solar PV system, comprising 7,500 high-efficiency solar panels. These panels are strategically positioned to maximise energy yield while ensuring long-term performance and reliability across the site.

Ballasted Roof Installation

A key component of the project includes a ballast system installed on a slab roof, engineered to balance structural integrity with practical installation considerations.

Panel Installation:
– A total of 702 solar panels will be installed on the slab roof in this section.

Ballast Design:
– The ballast system has been engineered for both stability and ease of transport.
– The ballast is divided into 8 sections, each weighing 26kg.
– This modular approach simplifies handling and installation on site.

Total Ballast Weight:
– The combined ballast required for this section is approximately 3,200kg.

Battery Energy Storage System (BESS)

The heart of our Soshanguve microgrid solution is a powerful 5000kWh Battery Energy Storage System (BESS), designed to store solar energy and provide backup power when it’s needed most.

Our Soshanguve microgrid solution will significantly reduce carbon emissions and reliance on fossil fuels, contributing to a cleaner, greener Soshanguve. It will save over 4100 tons of coal and prevent more than 7500 tons of CO₂ emissions annually.

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Evaton Mall’s cutting-edge solar PV solution marks a significant milestone in Fortress Real Estate Investments Limited’s journey towards achieving its decarbonisation goals.

Our 2MWp solar PV solution at Evaton Mall, the largest in Fortress’s portfolio to date. This project required overcoming multiple challenges, including structural modifications to accommodate the weight of the panels, roof preparation, and upgrades to the local Eskom infrastructure. The installation was carried out in two phases, with half of the system activated last year with the balance of the system completed in October 2024.

The system is set to generate 3,200 MWh annually, cutting CO2 emissions by more than 3,000 tons per year.

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