Solar pump selection guides covering pump nameplates, head, flow, PV sizing, inverter choice and quotation checks for water projects.
The common mistake is sizing the PV array as if a pump were a light bulb. A 5HP pump does not need only 5HP worth of panels. The inverter must start the motor, hold frequency, survive weak sunlight, and keep enough DC voltage in the working window. For a 220V single-phase pump, start with PV … Read more
On a deep well site, the real question is not “How many kilowatts is the inverter?” The first question is whether the pump can lift enough water from the real water level to the discharge point, at the flow the buyer needs. Sizing a solar water pump for a deep well starts with head and … Read more
This is Andy. I've spent the last eight years in the solar pumping trenches, and one sizing mistake keeps showing up in irrigation projects: people match the inverter only by motor kW, then ignore the DC voltage window and field conditions. That shortcut costs water. The pump may start late, trip at noon, or run … Read more
A practical selection guide for EPC irrigation projects This is Andy. I have spent the last eight years working on solar pumping projects. One mistake still shows up often: buyers choose the inverter phase by price, not by pump load, cable distance, or daily water demand. For solar water pumping, single-phase and three-phase are not … Read more
A field checklist for EPC contractors, distributors, and irrigation projects This is Andy. I have spent the last eight years working on solar pumping projects. Most solar pump inverter problems do not start on the installation day. They start earlier, during selection. The pump nameplate is not checked. The PV string is guessed. The buyer … Read more
A practical guide for EPC and irrigation projects This is Andy. I have spent the last eight years working on solar pumping projects. Choosing a solar water pump inverter for an AC water pump is not just a model match. It is a system decision. If the inverter does not match the pump, PV array, … Read more
High head and high flow projects should be sized from the duty point, not from the controller price. High head and high flow expose weak pump selection fast. A system that works in a shallow well can fail badly when water must move higher, farther, or in larger volume. DC solar pump systems often reach … Read more
Panel matching is not just adding enough watts; the PV string must give the inverter the right voltage window under real site conditions. Many solar pump problems start with a simple mistake: the buyer matches panel power to pump power and forgets voltage. The pump may run at noon but start late, stop in clouds, … Read more
Solar VFD compatibility depends on voltage, phase, motor current, pump curve, PV input, and protection settings working together. Pairing a solar VFD with an AC water pump is not just matching kilowatts. A 4kW inverter can still be wrong if the pump voltage, phase, rated current, or PV input range does not match the site. … Read more