Information On Solar Water Pumps

Installing an irrigation pump run by solar will save you time, increases production, and is more economically sustainable than any other irrigation method. Regardless if you have a small backyard garden, fields of crops or you desire to live where city-supplied water is not installed, a water solar pump is an investment that will pay off for years to come. Here we will point out what you need to do to select the right type of solar irrigation pump best suited to your purpose and install a solar water pump, and ways to protect your solar water pump from harm.

Which Type of Solar Pump is Necessary for Your Needs?

The two differing styles of water pumps, those that function on the surface and also a style that is submersed deep below the ground in a well. The surface method of pumping water can be utilized when you have available a water source such as a stream, river or lake in close proximity. Surface solar pumps use a set of pipes to carry water from from the surface water location to either a water storage tank or directly to the location where it can be consumed. However most users will require a submersible well water solution for their water pump installment. The solar water pump is submerged in a well that is underground up to a thousand feet deep. This pump is connected to solar panels and the water pumped up and placed into a raised storage tank or a pressurized tank.

How to Choose the Right Water Storage System

Having decided upon the right type of solar pump for you, your next task is to select the style you will need for water storage. For practical purposes there are there 3 main styles of water storage. One method of water storage is to place water inside a tower which is raised above ground level. This kind of storage using an elevated tank will produce pressure enabling water to move within the system. This kind of water storage functions the same as a water tower. In this way the water tank provides water during the evening and when clouds cover the sun.  With this style the pump only needs to run as it is extracting water from the ground.

The next system of water pump is ground level tank and a pressure pump. With a ground level water storage tank, apply a pressure pump so that the water has enough pressure for using. The storage will then hold water to be used on times of cloudiness although the pump can only run when it is sunny.

The next kind of system involves using pump straight to pressure tank. This system needs no storage tank, although it only operates when there is light. Compared other systems, this kind has the smallest initial costs. The disadvantage of this system is that it will drain solar batteries during evening and when it is cloudy. The solar battery may discharge without the solar panels can replenish them, leaving you with no water.

Decide Upon the Right Site for a Pump and Water Storage

After you have picked the style of water pump, and then the method of water storage, thereafter is to find the best location to place them. The pv solar panels need to be situated in a location that has the best sunlight available. If your solar panel setup cannot use a solar tracker, place the pv modules in a direction where they will receive the highest volume of sunlight through most productive hours of sunshine each day. Most home systems will utilize solar modules tilted in a set direction. For large systems like supplying well water for a farm, attaching a sun tracking on your solar module is an excellent option. A sun tracking module positions the solar panels towards the sun, facing it through the day, maximizing the solar power possible. This can produce 20% to 40% extra electricity on summer days beyond a fixed solar array.

Pump Maintenance

After investing all this money into your solar pump, you should take steps to prevent the pump from being harmed. There should be a floating sensor to alert as the water tank is approaching near being full to shut down. A number of solar pumps come with this out of the box, verify this with the supplier. It is a necessity that your pv solar pump system and modules are grounded properly. This is to prevent the solar pump installation from being damaged caused by lightning.

Advantages vs Other Types of Pumping

Should you install a solar irrigation pump, or use a hand pump, windmill pump or gasoline pump?

Type of Pump Advantages Disadvantages
Hand Pumps
  • local manufacture is possible
  • easy to maintain
  • low capital cost
  • no fuel cost
  • loss of human productivity
  • often inefficient use of boreholes
  • low flow rates
Animal Driven Pumps
  • more powerful than humans
  • lower wages than human power
  • animals require feeding all year round
  • often diverted to other activities at crucial irrigation periods
Hydraulic Pumps
  • unattended operation
  • no fuel costs
  • easy to maintain
  • low cost
  • long life
  • high reliability
  • require specific site conditions
  • low output
Wind Pumps
  • unattended operation
  • easy maintenance
  • long life
  • suited to local manufacture
  • no fuel requirements
  • water storage is required for low wind periods
  • high system design and project planning needs
  • not easy to install
Solar Water Pump
  • unattended operation
  • no fuel costs
  • low maintenance
  • easy installation
  • longest life span (25 years or more)
  • high capital costs
  • water storage required for cloudy periods
  • repairs often require skilled technicians
Diesel and gasoline pumps
  • quick and easy to install
  • low capital costs
  • widely used
  • can be portable
  • fuel supplies erratic and expensive
  • high maintenance costs
  • short life expectancy
  • noise and fume pollution
  • reliance upon fossil fuels

Review the table above to discover whether a solar irrigation pump is the best solution for your irrigation needs.


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