GreenSun International
Innovative solar energy solutions for Homes and Businesses
Why Choose GSI for Solar Energy Solutions
Expertise in Renewable Energy
Since 2011, we have designed and delivered solar energy systems for residential, commercial, and industrial clients across Southern Africa and beyond.
Quality and Reliability
We use only premium components and proven technologies, ensuring high-performance systems that offer durability, consistency, and peace of mind.
Customised Energy Solutions
Bespoke solar energy systems designed to maximise efficiency, cost savings, and reliability.
Our Solar EPC Services
Residential Solar Installations
Custom-designed solar energy systems for homes, delivering lower electricity bills, backup power, and long-term value.
Commercial & Industrial Solar Installations
Scalable solar energy systems for commercial and industrial clients, designed to reduce operating costs and improve energy reliability.
Hot Water Solutions
We deliver energy-efficient solar hot water solutions designed to lower electricity usage while providing consistent and reliable hot water for homes and businesses.
our numbers power our story
Proven Solar Energy Experience
+
Solar installations
Over 1880+ residential and business solar installations across South Africa and Mauritius.
+
megawatts of solar
Powering the future with 26+ MW of solar, expanding access for businesses and homes.
+
Years in Business
With 7+ years of expertise, we power businesses and homes with reliable clean energy.
+
Satisfied Clients
We have proudly installed high-performance solar solutions for 250+ happy clients.
Our Offering for Homes, Businesses and Industry
Consultation
Our team provides on-site assessments and energy analyses to design the ideal solar energy solution for your specific needs.
Design & Engineering
We design scalable solar energy systems using detailed energy analysis to maximise performance and return on investment.
Installation
As a full EPC provider, we manage the complete installation of your solar energy system, from procurement to commissioning.
Financed Solutions
We offer flexible solar energy finance options through approved banks and partners for both residential and commercial projects.
Operations & Maintenance
Ongoing maintenance, servicing, and monitoring ensure your solar energy system performs at its best year after year.
Wholesale & Trade Service
We supply premium solar components to installers and professionals that is backed by global partnerships and reliable after-sales support.
Technical Support & Service Centre
From diagnostics to maintenance and repairs, our dedicated service team protects your system’s performance with expert, ongoing support.
Consultation
Design & Engineering
Installation
Financed Solutions
Operations & Maintenance
Wholesale & Trade Service
Technical Support & Service Centre
Seamless Solar Journey
From the initial consultation to the final handover, our process is built around transparency, performance, and your long-term energy needs.
“Working with GSI felt effortless, their team handled everything with care, clarity, and professionalism. We finally feel in control of our energy.”
01
Customized Energy Assessments
We start with a site assessment and energy analysis to understand your usage and solar energy potential.
02
Tailored design solutions
Our engineers work with you to design a solar solution that balances performance, aesthetics, and ROI.
03
Integrated System Installation
Our expert engineering, procurement and construction (EPC) teams install your system efficiently, using premium components for maximum uptime and output.
04
Transparent Project Management
Throughout the process, you’ll receive clear updates, timelines, and support.
Commitment to Sustainability
We believe solar is more than just power. It’s a pathway to a cleaner, more resilient future. Sustainability is at the heart of every system we design and install.
Driven by purpose, powered by the sun
a more sustainable future
We create high-performance systems that reduce emissions and energy costs for homes and businesses.
clean energy, real impact
Our solar solutions are built to last, helping clients transition to greener living without compromise.
COMMERCIAL SUSTAINABILITY
smart solar for businesses
At GSI, we help businesses reduce operational costs, meet ESG goals, and take control of their energy future. With custom solar systems, premium components, and full EPC service, we make your shift to sustainability simple, efficient, and long-lasting.Â
ECO-FRIENDLY CONSTRUCTION
Sustainable building practices with cutting-edge energy solutions
We support energy-efficient building projects through integrated solar energy systems and thermodynamic hot water solutions.
Sustainable Materials Usage
We prioritise environmentally responsible products and components that minimise waste and maximise system lifespan.
Energy-Efficient Design
We use durable, energy-efficient components to reduce waste, extend system lifespan, and lower overall energy demand.
