Photovoltaic pumping systems convert solar energy directly into electric power to drive the pump without the use of accumulators. The pump rotates in proportion to the solar radiation.
The construction of a solar powered pumped irrigation system is the most cost-effective solution where there is no power supply or a diesel (gasoline) generator to supply the pump. The use of a diesel or gasoline generator is expensive in terms of consumables, maintenance and fueling costs and service. Using a standard power-to-power cable can be expensive or impossible. A simple calculation shows that the use of a photovoltaic irrigation system has a pay back period of 3-4 years depending on the parameters.
Other advantages are virtually zero maintenance of the system, fully automatic operation, no fuel consumables and service costs, long service life of up to 25 years, completely silent work without any gas emissions, which in some cases is of particular importance in the production of ecological cultures. The system has dry-running protection, reverse-fog function and etc.
This type of systems can be built where a pumping irrigation system has yet to be built and can also be built for already installed single phase or three-phase electric pumps powered by a generator (or mains). Solar pump systems cover a wide range of capacities: from 1 kW to 40 kW per pump. The number of pumps can be multiplied multiple times. The depth of the borehole can be from 5m to 200m. The solar pumping systems can be built for drip irrigation, for buffer systems, for use on terrestrial water sources such as dams, canals, etc.
Outside the irrigation season, solar energy can also be used for many other purposes – special solutions for farmers as well as other production processes. For each particular situation, we can offer a non-standard solution according to the specificity of the site. Typically, together with this type of system, stand-alone photovoltaic accumulator systems can also be built to provide security and video surveillance.