engleski

The Method of Selecting the Optimal Variant of Irrigation Systems Driven by PV Energy

Recently there have been increasing trends to use renewable energy sources, especially solar photovoltaic energy for electric energy production for the operation of urban water supply systems. The reason are not only economic requirements, but environmental and social criteria should also be taken into account. Using the example of a local football club "Obreš", located in Sveti Ilija in Croatia, this paper shows the application of the Critical Period Method for the design of hydraulically and energetically sustainable irrigation system. Two variants have been analyzed, Variant I and Variant II, which include solar photovoltaic generator and inverter, pumping station, water reservoir and pipeline. The water needed for irrigation is provided by combining the use of groundwater and rainwater. The difference between the analyzed variants is that Variant I is based on the water tower, while Variant II is based on the use of solar batteries. The selection of the optimal variant is shown by the application of multi-criteria methods Promethee and GAIA.

Critical Period Method; GAIA; irrigation; Promethee; solar photovoltaic energy; water pumping

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