Economic effects of the wind-turbine and solar panels application in vegetables’ production at the family farms

Jeločnik, Marko and Subić, Jonel (2021) Economic effects of the wind-turbine and solar panels application in vegetables’ production at the family farms. In: IX International scientific-practical conference: Innovative aspects of the development service and tourism. Faculty of Social and Cultural Service and Tourism, Stavropol state agrarian university, Sequoia, Stavropol, Russian Federation, pp. 61-75. ISBN 978-5-907110-75-5

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Abstract

In order to support the promotion of the efficient energy use, as well as larger use of renewable energy sources and green technologies in agriculture and rural areas, the Institute of Agricultural Economics from Belgrade, in cooperation with the Institute "Mihajlo Pupin" (Centre for Robotics) from Belgrade, was conducted the field research at the experimental farm of the secondary agro-chemical school in Obrenovac (Belgrade). Consequently, in paper was accented the assessment of economic justification of the energetic hybrid system use (wind turbine and solar panels) for the irrigation of vegetables produced in green house. The economic analysis involved the use of analytical calculations based on variable costs (contribution margin) in four production lines (production of tomatoes, red pepper, lettuce, and white onion) conducted in greenhouse. In order to present the improvement in economic efficiency of irrigation use, each calculation considers the substitution of conventional energy sources (gasoline, diesel or electric power) with free "green" energy generated from the installed energetic hybrid system, what induces the production costs reduction. Based on gained contribution margins, it can be concluded that the substitution of fossil fuels and electric power used for the irrigation of vegetables with the energy derived from the energetic potential of the sun and wind is economically justified and above all ecologically sustainable. As the consequence of mentioned substitution, in line to observed crops, the obtained contribution margins in the veggies’ production are increasing from 1.5 % to 3 %. Besides in veggie production, applied energetic hybrid system could be useful support in many farm activities (livestock production, food processing, rural tourism, etc.) boosting its overall sustainability.

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