Thai Nguyen Unviersity of Technology, No. 666, 3-2 Str., Thai Nguyen, P.O. 230000, Vietnam

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Abstract: This paper presents an optimization of energy systems for animal farms in Vietnam considering availability of energy resources within the farm such as biogas, solar, etc. It is proposed to combine two energy carriers together: biogas, and electricity into an aggregate system to improve the energy efficiency in the farm. Particularly nowadays in Vietnam, the local renewable power source can supply electricity back to the grid at a special price, making the investment of on-site generation is more reasonable. The optimal design of the energy system is formulated considering biogas generator, photovoltaics, battery, converter and the grid feeder, etc. The problem is then examined in a case study of a typical pig farm in Vietnam. In both case of within or without the ability to sell electricity back to the grid, the result shows the effectiveness of the proposed energy system.

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