Biogas utilization in the building sector: applicability and future perspectives

Mignona, D. and Szabó, Márta and Ceci, P. and Avino, P. (2025) Biogas utilization in the building sector: applicability and future perspectives. HUNGARIAN AGRICULTURAL ENGINEERING (44). pp. 5-11. ISSN 0864-7410

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Abstract

Global climate change is one of the greatest challenges of our time for the European Union and its member states. Several attempts are underway to control and reduce global greenhouse gas emissions. Demand for electricity has increased in recent years, leading to an increased need for more diversified sources of energy supply. In this context, the construction sector has a significant impact on energy consumption and environmental concerns. In fact, buildings contribute significantly to greenhouse gas emissions because of their energy consumption for heating, cooling, lighting and other operational needs. Biogas produced from industrial, municipal, organic and agro-industrial waste is an alternative renewable energy source that can be used for bioenergy generation. Efficient management of such waste promotes the use of biogas by reducing the environmental problems associated with it. The problem can be examined both from an energy perspective, considering the use of renewable fuels, and from an environmental perspective, such as a decrease in emissions of a greenhouse gas. Biogas can be used for the cogeneration of electricity and heat in combined heat and power stations, potentially reducing the fuel consumption, compared to the conventional heat and power generation in separate plants. It is an innovative solution for obtaining electricity and heat simultaneously through a highly efficient process. By using cogeneration plants, energy efficiency can be maximised, as electricity and useful heat are produced simultaneously. Cogeneration systems play an important role in reducing greenhouse gas emissions, reducing costs and reducing environmental pollution while increasing system reliability and energy quality, reducing network overload and avoiding distribution losses. Net-zero energy buildings are one of the promising decarbonization attempts due to their potential of decreasing the use of energy and increasing the total share of renewable energy. This study provides valuable tips and practical advice to encourage sustainability in buildings and facilitate the transition to a low-carbon built environment.

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