Millions of farms still rely on outdated AC pumps, increasing costs and limiting off-grid operations. Switching to solar sounds complex, especially without replacing pumps. With Hober’s hybrid inverter, it’s now easier than ever to convert any AC pump to solar—clean, efficient, and without buying a new pump.

To convert an AC water pump to solar, install a hybrid solar pump inverter like the Hober HHP series. It converts DC from solar panels into AC to drive existing single-phase or three-phase pumps, without replacing them. The system also supports AC grid or generator backup, ensuring 24/7 operation.

Let’s walk through the entire process—from system design to wiring—with diagrams and DIY options tailored for engineering contractors and solar distributors.

How to convert AC water pump to solar powered pump diagram?

Transitioning to solar doesn’t mean starting from scratch. In fact, with the Hober Hybrid Solar Pump Inverter, your current AC pump remains untouched. Here’s the basic system layout:

🔧 System Diagram:

🔍 Key Components:

• Solar Panel Array: Provides DC power based on pump size (e.g. 1HP ≈ 1200W+)
• Hybrid Inverter (e.g. HHP1.5K to HHP110K): Converts solar DC to AC output
• AC Water Pump: Existing pump (0.75–110kW, 220V/380V/460V)
• Optional Backup: Grid or Diesel Generator via AC input port

🛠 Features Highlight:

• MPPT Tracking: Maximizes solar efficiency under varying light
• Auto-switch Input: Prioritizes solar, shifts to AC if needed
• No battery required: Direct solar operation by day, grid/diesel at night

How to convert AC water pump to solar powered pump DIY?

Converting an existing water pump to solar power can be done step by step. Here’s a detailed DIY guide tailored for installers:

1. Determine Pump Specs

• Rated power (e.g. 1.5HP = ~1.1kW)
• Voltage: 220V or 380V
• Single-phase or three-phase
• Daily run time & head requirement

2. Select the Right Hober Inverter Model

Need help sizing? Contact Hober support: emma@hobertek.com

3. Install Solar Array

• Connect panels in series/parallel to meet inverter MPPT voltage input (typically 250V–800V)
• Use MC4 connectors, ensure tight and waterproof connections
• Mount at correct tilt angle (latitude based)

4. Wiring Inverter & Pump

For Three-Phase Pumps:

• Connect DC+ and DC– to inverter’s PV input terminals
• Connect pump cables to U/V/W output terminals
• Ground properly (PE terminal)
• Optional: Grid/diesel to AC Backup input (L1/L2/L3 + N)

For Single-Phase Pumps:

• Remove start capacitor
• Connect L and N to U and V terminals of inverter
• Ensure startup current doesn’t exceed inverter capacity

5. First-Time Setup

• Set pump frequency and overload protection via inverter screen
• Run dry test to confirm pump direction
• Use built-in protections: overload, under-voltage, dry-run, etc.

✅ Safety Tips:

• Use DC isolator switch
• Secure all cable terminals
• Add surge/lightning protection
• Install in ventilated, rain-proof area

Solar powered water pump: Why choose Hober hybrid inverter?

Unlike traditional solar systems that require replacing AC pumps with costly DC ones, Hober’s hybrid system keeps your investment intact and adds modern controls. Here’s why Hober is ideal:

🔋 Hybrid Power Compatibility

• Accepts power from solar, AC grid, or diesel generators
• Automatically switches source based on availability
• Can restrict grid use to save on utility bills

🧠 Smart Monitoring (Optional)

• Add WiFi/4G module for remote control
• Monitor voltage, amps, pump frequency in real time
• Receive alerts for overloads, low water, system faults
• Works with mobile app (Hober Remote), WeChat & Web platform

🌍 Outdoor-Ready

• IP65 waterproof housing
• Operates under high heat, dust, and moisture
• Direct wall-mount — no extra enclosure needed

🐄 Use Cases

• Agriculture: drip/spray irrigation, deep wells
• Livestock: watering systems in remote areas
• Villages: drinking water supply
• Markets: Philippines, Kenya, Nigeria, Cambodia

Final Thoughts

Converting your AC water pump to solar has never been easier with Hober’s hybrid inverter. No replacement, no downtime—just smart solar integration. Need help selecting a model? Contact Hober’s support.