Solar Pump VFD
Solar-powered VFD inverters for off-grid water pumping, agricultural irrigation, and rural water supply
Overview
A solar pump VFD (also called a solar pump inverter or solar water pump drive) is the core component of solar-powered water pumping systems, converting DC power from photovoltaic panels into three-phase AC to drive standard AC motors without the need for batteries or grid connection. SHZK solar pump VFD features advanced MPPT (Maximum Power Point Tracking) algorithm that maximizes energy harvest from solar panels under varying irradiance conditions, achieving MPPT efficiency above 99.5%. Our solar pump inverters support direct PV-to-pump operation with automatic start at dawn and stop at dusk, dry-run protection to prevent pump damage when water level is low, and wide PV input voltage range compatible with various panel configurations. The drives are available in both standalone and hybrid modes, with optional grid/battery backup input for 24-hour water supply capability. SHZK solar pump VFDs cover power ranges from 0.75kW to 110kW, serving agricultural irrigation, livestock watering, rural drinking water supply, fountain and landscape features, and off-grid community water systems in regions with abundant solar resources.
Key Benefits of Using SHZK VFD for Solar Pump System
- MPPT efficiency above 99.5% for maximum solar energy utilization
- Zero battery requirement — direct PV-to-pump operation reduces system cost
- Automatic dawn-to-dusk operation without manual intervention
- Dry-run and over/under-voltage protection for pump longevity
- Compatible with all standard AC induction motors — no special motor needed
- Hybrid mode supports grid or generator backup for continuous water supply
Recommended Models
| Series | Power Range | Input | Output | Best For |
|---|---|---|---|---|
| SP-100 | 0.75-7.5kW | PV DC 150-500V | 3Φ220V | Small farm irrigation, livestock watering, garden fountains |
| SP-200 | 5.5-37kW | PV DC 300-800V | 3Φ380V | Agricultural irrigation, community water supply, submersible pumps |
| SP-300 | 22-110kW | PV DC 500-1000V | 3Φ380V | Large-scale solar irrigation, municipal solar water systems |
Application Cases
Case 1: Remote Farm Irrigation (Africa) — A 50-hectare farm in East Africa installed a 15kW SHZK SP-200 solar pump VFD with 80 solar panels (40kWp array). The system pumps water from a 60m deep borehole to a 200m³ elevated tank, providing gravity-fed drip irrigation for the entire farm. The system replaced a diesel generator that consumed 15 liters/day, saving over $5,000 annually in fuel costs with zero emissions.
Case 2: Rural Community Water Supply (Southeast Asia) — A village of 300 households deployed a 7.5kW SHZK SP-200 solar pump inverter to pump water from a river to a hilltop storage tank. The MPPT VFD ensures reliable operation even during partially cloudy conditions. The system provides clean water to the community with no electricity bills, replacing an unreliable grid-connected pump that suffered frequent outages.
Case 3: Hybrid Solar-Greenhouse Irrigation (China) — A greenhouse complex in northwest China installed SHZK SP-100 solar pump VFDs on their 3kW submersible pumps. The hybrid mode automatically switches to grid power when solar energy is insufficient during winter months, ensuring year-round irrigation while achieving 85% solar energy utilization on an annual basis.
Need a VFD Solution for Your Solar Pump System?
Contact us for professional advice and competitive pricing.
💡 Selection Tips for General Industry
Recommended Series: SHZK VFD300 Full VFD300 Range
💬 Need help choosing the right model? Contact our engineering team for a free technical consultation tailored to your application.