Grundfos 11SQF-2 SQFlex Solar Submersible Well Pump (AC/DC, 13 GPM, High Head)
Renewable Water System — Solar & Wind Powered, Off-Grid Ready
Overview
The Grundfos 11SQF-2 SQFlex is a high-performance submersible well pump engineered specifically for off-grid and renewable-powered water systems. Designed to run on both AC and DC power, it integrates seamlessly with solar panels, wind turbines, and battery systems—delivering reliable water supply in remote locations without dependence on the grid.
With built-in MPPT and intelligent motor protection, this pump automatically optimizes power input for maximum efficiency and performance.
Why This System Works
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Runs on Solar, Wind, or AC Power
Accepts 30–300V DC or 90–240V AC, giving unmatched flexibility
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Built-In MPPT Controller
Maximizes solar efficiency by automatically optimizing power input
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High Head, Low Flow Precision
Ideal for deep wells with up to ~395 ft head lift
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No External Controller Needed
Integrated electronics simplify installation and reduce system cost
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Dry-Run & Overload Protection
Prevents damage and extends pump lifespan
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Helical Rotor Design
Optimized for high lift applications with steady, consistent flow
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Fully Submersible & Sealed (IP68)
Built for long-term operation in demanding environments
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All Stainless Steel Construction
Corrosion-resistant for durability in harsh water conditions
System Role
Functions as a primary water supply system for off-grid environments, powered directly by renewable energy.
Integrates with:
- Solar arrays (direct DC input)
- Wind turbines
- Battery storage systems
- Water storage tanks and pressure systems
Key Specifications
| Spec |
Detail |
| Flow Rate |
Up to 13 GPM |
| Max Head Lift |
~395 ft |
| Motor Power |
1.34 HP (P2) |
| Input Power |
1.4 kW |
| Voltage (AC) |
90–240V |
| Voltage (DC) |
30–300V |
| Current |
8.4A |
| Pump Type |
Submersible (Helical Rotor) |
| Outlet Size |
1-1/4" |
| Construction |
Stainless Steel (AISI 304) |
| Protection Rating |
IP68 |
| Borehole Size |
3" or larger |
| Weight |
18.1 lbs |
Ideal Applications
- Off-grid homes and cabins
- Remote agricultural water systems
- Solar-powered well systems
- Livestock watering and irrigation
- Environmental and rural water supply
Bottom Line
A fully renewable-powered well pump that turns sunlight and wind into reliable water flow — built for independence, efficiency, and life beyond the grid.
