Volta Series Solar Pumping Inverter

The Solanzo Volta Series is a dedicated solar pumping inverter family for direct photovoltaic operation of AC water pumps. The platform combines high-efficiency maximum power point tracking, variable-frequency motor control, water-level management, system protection and communication functions in a sealed enclosure architecture rated IP66 up to 45 kW, IP65 to 90 kW and IP54 above.

During operation, the inverter continuously evaluates available PV power and regulates pump frequency to match the available solar energy. This allows stable water production throughout changing irradiance conditions while reducing dependence on battery storage in conventional daytime pumping systems.

Five coordinated platforms — V1, V2, V3, the V3 high-power range and the VX cabinet series — cover pump duties from 0.75 kW residential and agricultural systems up to 355 kW municipal and industrial installations, all under a single control and protection philosophy.

Platform overview

The V1 platform addresses single-phase pump motors at 220–240 VAC for residential and light agricultural duty. V2 provides three-phase output at 220–240 VAC where that voltage class is required. The V3 platform is the main 380–415 VAC three-phase range covering standard and high-power ratings, while the VX series delivers project-engineered floor-standing cabinet solutions for the largest pumping systems.

Model range

Maximum MPPT tracking efficiency >99%; maximum inverter conversion efficiency ≥98% under nominal operating conditions. VX cabinet models above 200 kW are engineered to project requirements.

Automatic water management

Every Volta inverter integrates the complete control chain required for autonomous solar water pumping. AquaLogic™ well and tank level inputs stop the pump on low-water conditions and when the storage tank is full, with automatic recovery when normal conditions return. An optional pressure-sensor input supports pressure-based operation for closed-pipeline duties.

Typical applications

• Deep-well and borehole pumping where grid power is absent or unreliable

• Agricultural irrigation — pivot, drip and sprinkler systems

• Community, rural and livestock water supply

• Storage-tank filling and automatic transfer to elevated tanks

• Municipal, commercial and high-capacity industrial solar pumping stations

• Remote off-grid water systems without grid connection

Selection guidance

Select the inverter rating equal to or greater than the pump motor rating, matching the V1, V2, V3 or VX output-voltage class and phase. Use S-suffix models for compatible single-phase pumps and T-suffix models for three-phase pumps. The PV array should be sized within the platform's DC-voltage window — typically 1.3–1.5× the pump rating — and configured for the recommended MPPT range.