alexa Solar Energy, a Viable Alternative for the Water Supply in Pressurized Systems

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Solar Energy, a Viable Alternative for the Water Supply in Pressurized Systems

The high energy requirements, 1003 kWh/ha and 1.56 kW/ha according to [1], and the rising costs highlight the need to reduce the energy dependence of the irrigation sector. Several studies have developed strategies for the improvement of the design and management of irrigation systems to reduce the energy requirements [2-5]. Therefore, in Spain, electricity is produced mainly from fossil fuels and minerals which are non-renewable resources which use produce significant environmental impacts. By contrast, renewable energy resources reduce the negative effects on the environment and contribute to the sustainable development of the agricultural sectors. In Spain, the irrigation season is mainly concentrated between March to October. Simultaneously, the PV (Photovoltaic) systems have their peak energy production these months. Then, solar radiation and evapotranspiration have parallel time distribution curves (monthly and daily), so the peak solar power generated coincide in time with the irrigation water requirements. Consequently, solar PV has the potential to be the most suitable renewable source for irrigation.

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