Solar Water Pumping Systems

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Solar Water Pumping Systems

Solar Water Pumping Systems

The Solar Watering System is a technology designed to support the farmers generate income and to combat food and nutrition insecurity. Solar Watering System combines solar (photovoltaic) water pumping and low-pressure drip irrigation, allowing farmers in remote, dry regions to grow high-value and nutritious crops year-round. Solar-powered water pumps have long been used in remote regions for reliable water delivery.

In rural areas, where the price of diesel for generators is frequently highest, and the supply most unreliable, solar-powered pumps are both clean and cost-effective. Drip irrigation is a proven efficient and labor-saving technology that delivers water directly to plant roots and facilitates simple and uniform fertilizer application. With drip irrigation, farmers can achieve higher yields over larger areas with less water and labor. Mainly there are 2 different type of Solar Watering System that known mostly; Surface Water Systems and Groundwater Systems.

1. Surface Water Pumping Systems

The pumps have a suction limit, and are thus situated at stream’s edge. A concrete pumphouse provides protection from normal seasonal rains, and the intake structures and pumps are designed to be easily removable in the rare event of high water.

Voltage drop considerations limited placement of panels from the pumps. The panels are mounted at a fixed angle on high reinforced concrete footers. Water is transported to the reservoirs PVC pipe (gasket connections for durability and repair simplicity) laid under the garden area. To protect the pumps and prevent clogging of the drip irrigation lines, inline basket filters have been integrated into the intake structure in addition to the regular foot valve. The filters are cleaned at least once daily, as necessary.

2. Groundwater Pumping Systems

The submersible pump lies into deep and is powered by photovoltaic solar panels. A controller limits the pump and the pump is equipped with a water level sensor that automatically cuts power if the water level is too low. Voltage drop considerations limited placement of panels from the borehole, (The pumping capacity of this system is limited by the recharge rate of the borehole, The panels are mounted at a fixed angle on high reinforced concrete footers. Water is transported to the reservoirs via PVC pipe (gasket connections for durability The pump head can additionally divert water for drinking if needed.