Grid-Tied Solar Solution for Reliable Power & Reduced Electricity Costs
Drensky designed and installed a commercial solar solution for Southgate SPAR, a high-volume FMCG retailer in Pietermaritzburg, KwaZulu-Natal.
Facing escalating Eskom tariffs and unpredictable power supply, the business needed a proven renewable energy solution to protect trading continuity and reduce monthly electricity costs.
Drensky delivered a fully optimised grid-tied solar system — completed on time and engineered for long-term performance.
The Challenge: Power Volatility and Rising Electricity Costs
Like many South African retailers, Southgate SPAR was navigating two pressing energy challenges common across KwaZulu-Natal and the broader retail sector:
Increasing power uncertainties and grid instability threatened daily trading reliability, while rapidly escalating Eskom electricity tariffs were compressing operational margins.
In a high-volume retail environment, uninterrupted power is non-negotiable. Refrigeration units, lighting systems, security infrastructure, and point-of-sale technology must remain operational at all times. Any disruption risks stock losses, revenue impacts, and a poor customer experience.
The objective was straightforward: achieve reliable, cost-effective power without dependence on an unpredictable national grid.
The Solution: Grid-Tied Commercial Solar System
Drensky installed a SolarEdge grid-tied solar solution, purpose-built for the commercial retail environment and seamlessly integrated with Southgate SPAR’s existing electrical infrastructure.
The system was selected for several key reasons. SolarEdge’s power optimisation technology ensures each panel operates at peak efficiency independently, meaning shading or suboptimal roof orientation has minimal impact on overall system output.
The platform also provides advanced real-time monitoring, giving the business full visibility over energy production and consumption. Combined with SolarEdge’s industry-leading product warranties and performance guarantees, this solution offered the long-term reliability a retail operation demands.
Drensky’s approach encompassed detailed system design using the SolarEdge design platform, performance modelling to maximise energy yield across the available roof area, and close collaboration with SolarEdge’s technical team to resolve site-specific installation challenges.
Implementation: Commercial Solar Installation in Pietermaritzburg
The primary technical challenge on this project was roof orientation. The existing roof structure required careful analysis to ensure optimal panel placement without compromising system performance.
Drensky worked directly with SolarEdge’s engineering team to refine the panel layout, maximising usable roof space and ensuring the configuration would deliver efficient, consistent energy generation year-round.
The project was completed within the planned timeframe, with minimal disruption to the store’s daily operations.
Results: Measurable Benefits for a KwaZulu-Natal Retail Business
The Southgate SPAR solar installation delivered both immediate and long-term benefits across the business.
On the operational side, the store now enjoys significantly improved power reliability, reducing exposure to grid volatility and the impact of load shedding on trading hours.
Monthly electricity costs have decreased, directly improving operational margins. The business has also gained greater confidence in its ability to maintain compliance with food safety and refrigeration standards — a critical consideration for any FMCG retailer.
Beyond the numbers, the Southgate SPAR team reports increased peace of mind in day-to-day operations and stronger confidence in their ability to trade consistently, regardless of what is happening on the national grid.
Client Feedback
Southgate SPAR described their experience working with Drensky as: “Fantastic, professional, respectful and trustworthy.”
Conclusion: Commercial Solar Solutions Built for South African Retail
This project is a clear demonstration of how a strategically designed commercial solar installation can transform energy uncertainty into operational resilience. By partnering with Drensky and leveraging SolarEdge technology, Southgate SPAR has reduced its dependence on Eskom, lowered its electricity costs, and secured its ability to trade with confidence — now and into the future.
Is your business facing similar challenges with load shedding or rising energy costs?
Drensky specialises in commercial and industrial solar solutions across KwaZulu-Natal and South Africa.
Whether you operate a retail store, warehouse, or multi-site business, we design grid-tied and hybrid solar systems that protect your operations and your bottom line.
- Contact us about your commercial solar project
