The energetic and economic analysis of demand-driven biogas plant investment possibility in dairy farm

The paper aims to analyze the energy and economic effect of a demand-driven biogas investment versus a conventional one in modern dairy farm facilities of medium scale. Demand-driven exploitation may be the only way to obtain permission for connection to energy grid of new renewable energy sources (RES) installations in administrative regions where intermittent RES i.e. photovoltaics provide a large amount of energy to the grid. The biogas plant cogeneration capacity is meant to respond to demand out of the time range of intense electricity generation from photovoltaic farms.