Engineering a utility-scale agricultural solar panel installation in Marondera to eliminate power outages, suppress pivot irrigation pumping costs, and establish a continuous clean power asset for Safari Farm.
1. Executive Summary
1.1 Facility Overview
Mafuro Dairy, situated in Marondera, Zimbabwe, stands as one of the region’s premier commercial dairy and agricultural production hubs. Operating across extensive center-pivot irrigation circles at Safari Farm, the facility demands continuous, uninterrupted electrical power to drive high-capacity water pumping stations, refrigeration units, and automated milking parlors necessary to sustain daily agricultural yield.
1.2 Technical Problem
Agricultural operations in Mashonaland East face severe municipal grid volatility, characterized by multi-hour load-shedding schedules and unpredictable voltage surges. Unannounced power cuts during critical irrigation cycles posed severe risks to crop yields and livestock thermal management, while forcing heavy reliance on industrial diesel generators. Escalating diesel fuel prices and continuous engine servicing overheads significantly inflated operational expenditure (OPEX). To safeguard production and stabilize costs, Mafuro Dairy required a robust, high-yield clean energy array engineered to withstand harsh farm environments and intense seasonal heat.
2. Engineering Design
2.1 Array Specifications
Sungreat Energy engineered a high-density 330 kWp DC ground-mounted PV system utilizing 600 units of the Sungreat BSP Series 550W N-Type TOPCon bifacial double-glass solar panels. Featuring dual-glass encapsulation, the modules deliver optimal physical durability against agricultural dust storms, UV degradation, and mechanical stress (rated at 5400Pa front / 2400Pa rear load), while capturing additional ground-reflected albedo light to boost system yield by up to 30%.
N-Type TOPCon Efficiency
Delivers up to 23.69% module conversion efficiency with zero Light-Induced Degradation (LID), maximizing morning and late-afternoon power production for irrigation pumps.
High Temperature Stability
Features an ultra-low −0.29%/°C Pmax temperature coefficient to minimize thermal power losses during hot Marondera summer afternoons.
On-Grid Inverter Cluster
Integrates three 110 kW Sungreat Energy commercial on-grid inverters operating with multi-MPPT tracking to ensure maximum harvest from variable string alignments.
1500VDC Architecture
Utility-scale 1500V DC system design lowers BOS (Balance of System) cable costs, minimizes line voltage drop over long agricultural distances, and enhances system efficiency.
2.2 System Parameter Schedule
The technical parameters and system design attributes engineered for the Safari Farm installation are summarized below:
| Parameter | Specification Details | Scope & Application |
|---|---|---|
| Project Location | Marondera, Mashonaland East, Zimbabwe | Agri-Industrial / Safari Farm |
| Total System Capacity | 330 kWp DC / 330 kW AC | Commercial Grid-Tie Array |
| PV Module Configuration | 600 × Sungreat BSP Series 550W N-Type TOPCon | Bifacial Solar Panels |
| Glass & Structure Build | Double-Glass 1500VDC Systems Design | Utility EPC Grade |
| Inverter Architecture | 3 × Sungreat Energy 110 kW Commercial On-Grid Inverters | High-Efficiency Power Conversion |
| Structural Load Tolerance | 5400 Pa Front Load / 2400 Pa Rear Load | Reinforced Ground-Mount Racking |
| Albedo Energy Gain | 10–30% Rear-Side Bifacial Gain | Enhanced Soil Reflection Harvest |
| System Monitoring | IoT Smart Metering & Cloud Analytics | 24/7 Remote Operations Control |
3. Implementation Workflow
3.1 Engineering Design
(January 2022 – March 2022)
The project kicked off in January 2022 with rigorous site topography surveys, soil resistivity testing, and 3D shade analysis across Safari Farm. Sungreat Energy coordinated the international supply chain, managing factory flash testing and maritime-to-overland freight routes to transport 600 double-glass solar panels and power conversion units safely to Marondera.
3.2 Construction & Wiring
(April 2022 – June 2022)
Civil teams executed ground anchor piling and erected hot-dip galvanized steel mounting structures engineered to resist high wind pressure and seasonal soil shifts. The solar panels were installed with calibrated torque settings to protect against micro-cracking. Underground armored 1500V DC cabling was laid in heavy-duty trenches leading to the centralized inverter room, which was built with custom ventilation to withstand ambient farm temperatures.
3.3 Project Handover
(July 2022 – August 2022)
By July 2022, engineers initiated system testing, including string insulation testing, thermal imaging scans under peak load, and grid protection synchronization. The 330 kWp array was officially commissioned in August 2022, integrating with the farm’s main distribution boards and automated pump controllers for immediate, seamless operation.
4. Performance Metrics
4.1 Verified Operational Results
Since commissioning, the 330 kWp PV plant has delivered significant operational and financial benefits for Mafuro Dairy:
- Annual Energy Yield: Generates over 560,000 kWh of clean electricity annually.
- Irrigation Cost Reduction: Slashed daytime grid power expenses for center-pivot pumping by over 75%.
- Diesel Displaced: Replaced thousands of liters of monthly backup generator fuel usage.
- Carbon Mitigation: Offsets approximately 480 Metric Tons of CO2 emissions annually, advancing sustainable farming benchmarks in Zimbabwe.
Implementing Sungreat Energy’s 330 kWp TOPCon bifacial system has stabilized our irrigation cycles at Safari Farm. The continuous power output protects our crops during peak heat, while drastically lowering our monthly utility bills and diesel consumption.
— Operations Manager, Mafuro Dairy & Safari Farm
5. International Publication
6. Lets Be our Partner
Partner with our technical teams to design, engineer, and deploy high-performance commercial and utility-scale solar arrays tailored for agricultural and industrial facilities.
Website: www.sungreatenergy.com | Email: [email protected]
