Project Overview
Location: Zimbabwe | Date: 2024
Capacity: 50KW | Application: Agricultural
A 50KW off-grid solar power system was deployed at a commercial farm in Zimbabwe to electrify irrigation pumps, cold storage, and livestock processing equipment across a 120-hectare operation.
The system replaced diesel generators that had been consuming over 1,200 litres of fuel per month, providing clean, predictable power for the farm's daily operations.
Agricultural Electrification Pain Points for Rural Farm Installers
The farm's remote location—over 40 km from the nearest grid transformer—meant the contractor faced extreme logistics constraints for heavy equipment delivery.
The primary technical challenge was designing a system robust enough to handle the high inrush current of a 15KW borehole pump starting under load, while simultaneously supplying continuous power to temperature-controlled cold rooms storing perishable produce.
The contractor also needed to ensure the battery bank could sustain overnight refrigeration loads during Zimbabwe's dry-season months when solar irradiance dips below 4.5 kWh/m2/day. These conflicting demands required careful solar power system components selection that typical residential kits could not satisfy.
The Anern Solution: Engineered for Installers
Anern's 50kW 128kWh hybrid solar system was chosen as the core platform, offering a single-cabinet inverter-battery architecture that dramatically simplified on-site assembly.
The farm's irrigation pump was connected to a dedicated 20KW output channel with independent soft-start control, eliminating voltage sag during start-up. Cold room circuits were fed from a separate inverter phase configured for 24/7 baseload delivery, backed by the system's full 128kWh lithium battery capacity.
The contractor supplemented the main system for perimeter electric fencing and automated gate controls, creating a unified power architecture managed through a single monitoring dashboard. This project showcases the versatility of off-grid hybrid solar systems for comprehensive farm electrification.
Irrigation-Centric System Sizing & Load Segregation
The PV array was over-paneled to 62KW DC to compensate for winter irradiance losses, ensuring the borehole pump's daily water delivery quota was met even on overcast days.
The LiFePO4 battery storage section was configured with a diesel generator auto-start threshold at 20% state of charge, ensuring cold rooms never lost power during multi-day overcast periods.
Key B2B Benefits & Project Impact
- Diesel Displacement at Scale: The 50KW off-grid system eliminated over 1,200 litres of monthly diesel consumption, delivering a calculated payback period of 2.8 years for the farm owner while reducing the contractor's after-service fuel-logistics burden.
- Single-Platform Surge & Baseload Handling: Dedicated high-surge and continuous-load output channels allowed the contractor to meet conflicting load profiles without installing separate inverter subsystems, reducing equipment cost by an estimated 22%.
- Simplified Remote Monitoring for Preventive Maintenance: Anern's cloud-based dashboard gave the installer real-time visibility into pump start-up events, battery cycle depth, and generator auto-start counts, enabling proactive service scheduling across Zimbabwe's challenging rural road network.
- Agricultural-Specific Design Validation: This project demonstrates how 50kW off-grid solar for agriculture configurations can serve irrigation, cold chain, and livestock power needs from a single commercial solar system platform.
