Solar Water Pumping: The Most Ecological and Economical Way To Pump Water
Solar water pumping is the name given to the pumps that, instead of being powered by electric current, use solar energy. Our country has areas that are suffering from serious problems of desertification, access to water is unequal and unfortunately, there are areas where it is scarce. On the other hand, there are also areas in which there is no electricity supply because they are rural zones that are not urbanized and where it is not possible to obtain energy from the grid.
Solar submersible pumps are ideal for use in many environments – after all, many of the most remote areas in this country get plenty of sunshine. Solar pumps are a popular choice for watering livestock, crop irrigation, industrial water supply, and even residential and swimming pool applications. So what are the benefits?
- Solar panels can be reliable, even in regional and remote areas.
They make an ideal choice when grid power is irregular or unavailable. When properly serviced and maintained and with adequate water storage, solar pumps offer great reliability. Some systems even offer apps to help you remotely monitor performance and flow rate.
- They have extremely low operating costs.
One of the major advantages of a solar pump is that its energy comes straight from the sun, lowering operating costs and its environmental footprint.
- They’re easy to transport and relocate.
Need to move a large mob of stock, or change your pump location based on the seasons? Depending on your system and site, solar water pump systems can be shifted relatively easily.
- Solar pumps are generally low-maintenance.
Upkeep is typically minimal compared to grid power or generators – an important factor when these pumps are often used hundreds of kilometres from service bases. If PV panels lose efficiency, they can be replaced separately to the whole system.
- Productivity increases in times of need.
When it’s hot and sunny people tend to use more water, and livestock will hang closer to water troughs. A solar water pump moves more water in sunny weather and slows appropriately when it’s overcast or raining, with the option to store a backup supply if your storage tank is adequately sized.
The possibilities for solar pump systems
Solar panels can be designed in almost any configuration, including borehole or surface configurations, and with centrifugal or positive displacement pumps. Surface pumps work well for dams, tanks, creeks, and ponds as long as the pump can be located under 6 metres above the water level. Borehole or submersible pumps can perform very effectively with solar panels as long as the system is correctly planned.
In less sunny areas there may be a benefit in installing a passive (non-motorized) or active (motorized) tracker that will shift the PV panel to gain the most energy as the day progresses. Generators or batteries can also be integrated into the system as a backup for cooler days.
Of course, the reliability and performance of your solar pump depend on the quality of your pump service. To enquire about an onsite or in-house pump service for your solar pumps, contact the Tech Africa team on +263772156504
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