Selection & Sizing Guides

Keep your existing AC water pump and add solar power safely. Learn how to match voltage, phase, inverter, PV array, head and flow before retrofit.

Sizing a solar deep well pump inverter by motor nameplate kilowatts alone is the quickest way to end up with a stalled pump and a burned cable. In deep well solar pumping, hydraulic head, drawdown dynamics, and motor power factor dictate the electrical load. A submersible motor operating at the bottom of a 120-meter borehole … Read more

Running a three-phase pump motor from single-phase utility power or a compact solar array isn’t a workaround—it’s often the smartest engineering choice on the farm. A single-phase to three-phase solar pump inverter makes immediate sense when your site has single-phase 220V grid power or a direct-PV array, but your application demands the durability of a … Read more

A wrong voltage choice doesn’t just stall a pump—it burns cables and triggers repetitive over-current trips before water ever reaches the surface. The choice between a 220V and a 380V solar pump inverter is decided entirely by the pump motor’s internal winding—not by the utility grid voltage at your warehouse or farmhouse. If your motor … Read more

A practical checklist for EPCs, distributors, pump dealers, and irrigation buyers who want a faster model check before pricing. A useful solar pump inverter quotation checklist should include pump power, rated voltage, phase, current, head, flow, pump type, cable distance, PV panel data, site conditions, and clear photos. These details help the supplier check model … Read more

A quick product-family router for distributors, EPC teams, and pump dealers who need to explain Solarseeker’s SP inverter paths without reading every product page first. Choose SP1, SP2, SP3, or SP4 by matching the pump nameplate first. SP1 fits 220V single-phase pump projects. SP2 fits 220V input with 220V three-phase output needs. SP3 fits 220V … Read more

Use SP6 when the site needs stronger enclosure protection, but select it from pump and well data, not from IP rating alone. SP6 fits projects where a submersible pump controller must work near a dusty, humid, coastal, or remote well site while still managing solar pumping control. Every well still needs its own check. Pump … Read more

A field guide for EPC teams checking duty point, pump curve, pipe loss, and inverter fit before quoting a solar pumping system. Head and flow are not enough for inverter selection because they only describe the target duty point. The pump curve shows whether the pump can reach that point efficiently. The inverter must then … Read more

A practical guide for buyers matching well depth, pump nameplate, total head, flow, and PV array data before choosing a solar pump inverter. A submersible well pump can run on solar power when the inverter matches the pump motor and the PV array supports the required voltage and power. Do not choose by well depth … Read more

A practical guide for EPC teams comparing solar-only pumping, water storage, battery backup, and hybrid AC backup before quoting an irrigation project. Battery storage is not the default choice for most solar water pump projects. Start with daytime pumping and water storage first. Add batteries only when the site must pump outside solar hours, has … Read more