How To Choose the Right Solar-Powered Water Pump System

A solar-powered water pump offers many benefits, including cost-effectiveness, environmental friendliness, low maintenance, reliability, and longevity. The appliances also work perfectly for both small-scale and large-scale users. However, selecting the right solar-powered water pump is crucial to realizing these benefits.

The right choice of solar pump system is key to ensuring efficiency, reliability, and cost-effectiveness over the system’s lifespan. A properly sized and matched system will prevent poor performance, premature equipment failure, and unnecessary expenses.

Read along to learn how to choose the right solar-powered water pump system for your needs.

Understand your water needs and source

The first step to choosing the best solar-powered water pump is to determine your water demand, whether for household use, livestock watering, seasonal irrigation, or institutional application. For instance, a small solar water pump will be adequate for a few animals or a small household, whereas several hectares under irrigation may require a more robust solar motor pump.

Your water source will also determine whether a surface or submersible solar-powered water pump is ideal. If you are getting your water from a shallow well, pond, or river, consider a surface solar-powered water pump.

However, if a deep well or borehole is your water source, a submersible surface or submersible solar-powered water pump is recommended.

Consider the pump type and choose the right one for you

There are two types of solar-powered water pumps: surface and submersible solar-powered water pumps.

Surface pumps sit on the ground surface and draw water from a source into the pump, then discharge it to where it is needed. These pumps with both suction and discharge mechanisms work best for shallow sources.

In contrast, submersible pumps, as the name suggests, are submerged in the water source, which they pump out to where the water is needed. These pumps are sealed for use in deep wells and boreholes.

Understand solar panel and power requirements

Since you are using solar to generate electrical energy, sun-hours, seasonal variations, and shading issues are important considerations. Ideally, it is crucial to match the pump power rating with its corresponding solar panel wattage to avoid mismatches.

1. Power Setup

If you intend to use the unit in an area that experiences shading issues, or if you wish to continue pumping water beyond the regular sun hours, an AC power system should be a perfect workaround.

Such a system uses a solar-to-battery storage solution. The solar panels charge batteries that, in turn, supply the pump with the power it needs to continue operating consistently, even in the absence of sunlight.

However, if you will use your solar-powered water pump in a location with reliable sunlight, limiting your usage to the sun hours, a DC power system will be adequate.

This kind of system has a direct solar power setup. It is low-cost but limits your usage to sunny hours. Many users opt for this option when buying a domestic solar water pump.

Finally, if you need power for a commercial establishment, a hybrid and blended power model may be necessary. This setup combines solar, power grid, and generators to guarantee a flexible, uninterrupted power supply.

Most parts of Kenya receive plenty of sunlight, and should be able to rely on a cost-effective solar system, whether DC or AC, without necessarily investing in grid power or generators to pump water.

2. Power & Head Size

If you intend to draw water from deeper sources, higher-wattage pumps rated for drawing water from such depths should be the option to consider.

The pump’s “head size” rating is another factor that relates closely to the wattage. This rating shows how far the pump can move water vertically from the source to an outlet. This is a crucial factor when buying a surface solar-powered water pump for use in a hilly area or tall storage tank. We recommend discussing this factor with your supplier before settling on a purchase.

Budget for both upfront cost and running costs versus the return on investment

The solar pump price depends on the size, brand, depth of water, and solar panels used. A small domestic solar water pump system can start at KES 80,000, while a larger borehole system can cost above KES 600,000.

Kenya’s leading supplier, Irrihub, for instance, has prices starting as low as KES 75,000 for a 40-meter head pump with a flow rate of 1200L/hr., and more robust pumps rated at 2500L/hr., going for KES 185,000.

Ideally, there is something for every budget. So, start by determining your budget, considering not only the pump price but also the cost of acquiring solar panels, installation costs, as well as potential maintenance fees.

Once you have those upfront and long-term costs figured out, factor in the long-term savings on electricity and fuel costs to get the full picture of your costs.

Original Reliable Solar Water Pumps in Nairobi, Kenya at Irrihub Ke, +254 112 148 880

If you are looking to buy a reliable solar water pump in Kenya, Irrihub has nice offers you may
consider. We sell solar pumps as independent units or as complete solutions (kits). The complete
solutions include:
 Submersible brushless pump
 600W solar panels
 Delivery pipe 25MM
 70M head
 Flow rate of 2300 L/hr.
 Solar panels
 Pipes and cables
 MPPT controller
 Full installation

Consider the supplier and installation, as well as after-sales support

Suppliers such as Irrihub are keen to offer after-sales support across their entire product range, but this is not always the case with all vendors. So we recommend checking to ensure that you are buying from a reputable supplier before committing your money.

Also, be sure to verify warranties and consider the availability of spare parts when making any solar pump purchase.

Final thoughts

Solar-powered water pumps offer a practical, cost-efficient, and sustainable solution for water access across Kenya and the region.

While these pumps are not yet at their peak popularity, they are increasingly becoming the go-to option for users who have identified them, including farmers, businesses, and households. If you are one of them, this guide should help you choose the right solar water pump for your needs.

We hope this article helps you match your needs, whether home, borehole, or farm, with the right solar pump system.