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Solar water pumps, no bill and no generator

Water flows as long as the sun is up.

A submersible pump powered directly by photovoltaic panels through an MPPT inverter. No grid connection, no diesel, no replacement batteries. For wells, irrigation, farms and fish farming.

0.75 – 150 kWHybrid solar + gridDry-run protection
Photovoltaic array powering a water pumping system
How it works

Why a solar pump instead of a conventional one

Water demand and panel output overlap almost perfectly: in summer, when plants need the most, there is also the most sun. That is why a solar pump needs no batteries — the water in the tank is the battery.

Conventional

Grid or generator

A connection to run all the way to the field, or a generator that needs diesel, oil and someone to start it. The cost grows with every hour of pumping.

Solar

Straight from the panels

The panels feed the inverter, the inverter starts the pump in the morning and stops it in the evening. Operating cost after installation is zero.

Where they are used

Four situations where they pay back quickly

Simple rule: the further from the grid and the more hours a day you pump, the sooner it pays for itself.

Irrigation

Field crops and orchards

You pump into a tank during the day and irrigate from there by gravity or drip. The system works exactly in the months you need it.

Farm

Livestock watering

Constant daily demand, all year. Here a solar pump replaces a grid connection you would otherwise pay for monthly, for nothing, including in winter.

Household

Isolated house or cabin

Your own well, no grid nearby. With an elevated tank you get pressure in the house without a booster pump and without electricity.

Fish farming

Ponds and basins

Recirculation and oxygenation, where the pump runs many hours a day and the electricity bill would be the main operating cost.

The range

From a household to a farm of hundreds of hectares

The inverters cover pumps from 0.75 kW (1 HP) up to 150 kW. Small models are single-phase, those from 1.5 kW upwards are three-phase with a variable frequency drive. Exact sizing is done on water depth and the flow rate you need.

Power classMax pumpSupplySuitable for
0.75 – 2.2 kW1 – 3 HPSingle-phase 220/240 VHousehold, garden, small-scale livestock watering
3.7 – 5.5 kW5 – 7.5 HPThree-phase 380/400/440 VDeep household well, greenhouse, small orchard
7.5 – 15 kW10 – 20 HPThree-phase 380/400/440 VIrrigation over tens of hectares, livestock farm
18.5 – 55 kW25 – 75 HPThree-phase 380/400/440 VLarge holdings, fish farming, irrigation networks
64 – 150 kW85 – 200 HPThree-phase 380/400/440 VLarge-scale projects, communal water systems

The table is indicative, by power class. The exact inverter and pump model are chosen together, based on well depth and required flow.

Documented example

SJ30-16 — the 15 kW pump

One model from the range, with the full datasheet. A stainless steel multi-stage submersible pump with an integrated check valve, replacing conventional long-shaft deep-well pumps.

The hydraulic curve is measured with water at 20 °C, density 1000 kg/m³, at 1 bar atmospheric pressure (ISO 9906 grade 3B). For other flow rates and depths we have equivalent models in the same series — sized on request.

30 m³/h
flow rate
118 m
head
15 kW
power
2850 rpm
speed

What protects the pump

Most pumps fail not from wear but from an avoidable accident: running dry when the water level drops, or a lightning strike. The inverter covers both.

Dry-run

Water level sensor in the well or software detection. When the level drops below the threshold the inverter stops the pump and restarts on its own when it recovers.

Lightning protection

Surge arresters on the DC input — essential for a panel array mounted out in the open, far from buildings.

Tank full

Automatic stop when the tank fills, with nobody standing by to watch it.

Electrical and thermal

Short circuit, overload, overcurrent, over-temperature, DC reverse polarity, phase loss and imbalance on three-phase.

Inverter technical specifications

The common characteristics of the HSPH series — solar input, pump output, protections and operating environment. Open the class you are interested in.

Solar input
Max Voc voltage450 V
Min Vmp voltage80 – 200 V
MPPT efficiency99%
Built-in boosteryes (LB) / no (L)
Hybrid AC input
Voltage220/240 V single-phase
Hybrid modeautomatic: tops up from grid when sun drops
Pump output
Max pump750 – 2200 W
Output voltage220 / 240 V
Output frequency50 – 60 Hz
Max efficiency97%
Level sensoryes (well / tank)
Monitoring4G / Wi-Fi (optional)
DisplayLCD
ProtectionIP65
Noise< 50 dB
Temperature−10 … +60 °C (above 60 °C, derated)
Altitude< 3000 m (above, derated)
For households and gardens. The “LB” models have a built-in booster, so they start from a lower panel voltage.

Source: Yangzhou Bright Solar Solutions datasheet for the HSPH series and the inverter user manual. Full PDF datasheets available on request.

Request a quote
The price depends on depth, flow rate and how many panels the system needs, so publishing a fixed figure would be meaningless. What you get within 48 hours: the pump model, the inverter, the number of panels and the final price, transport and installation included.

Tell us what you have, we tell you what you need

You do not need exact figures to ask for a quote. Fill in what you know — we calculate the rest and come back within 48 hours with the sizing and the price.

Consumption

An approximation is enough. If you do not know, leave it blank — we work it out.

Use whatever unit is easy for you: hectares, number of animals, cubic metres per day.

We reply within 48 hours at the latest. Your details go nowhere else.

Frequently asked questions about solar pumps

It does, but more slowly — flow drops with irradiance, because the inverter adjusts frequency according to how much current comes from the panels. In practice the pump starts gently in the morning, peaks around noon and tapers off in the evening. If you need guaranteed flow regardless of weather, choose an inverter with hybrid input: it automatically tops up from the grid or a generator when the sun is not enough, and disconnects on its own when it returns.

Want water in the field without running power out there?

Tell us where the well is, how deep it goes and what you want to supply. We come back within 48 hours with the sizing and a complete offer.

Request a pump quote

Reply within 48h · Technical recommendation · Final agreed price