The Biogas an Alternative between Certainty and Uncertainty for the Transition to Green Energy

At the moment the world is facing a global energy security problem. Most countries have been faced with difficult decisions to take about energy, what stocks they can make, when and how it is used, what is the maximum annual production they can achieve from both renewable and non-renewable sources, and what the future will look like with the transition to green energy. This transition has been intensely debated by all European countries, as well as by other countries outside the European Union. The European Union has set two deadlines (2030, 2050) to significantly reduce its carbon footprint. Looking at geopolitical factors from a not-so-optimistic perspective, the transition to green energy has been put under accelerated debate and decisions are starting to take shape. This can be on the one hand encouraging, on the other hand it challenges a number of vectors: political, mechanical, physical, legal. The synergy between all these factors is extremely important if the transition to green energy is to be successful. One of the options that could be exploited is the production of biogas and its use in extended areas, as the main resources for obtaining it are varied and inexhaustible, at least for the moment. An example of the efficient use of biogas is CrisTim, which has started to use this green energy to heat its production halls. Another example of this is Schwab Agro SRL, an agricultural and wine company that has incorporated biogas production into its business. The resulting biogas is used to heat the greenhouses it owns and in other production activities. This article aims to highlight the major importance that biogas could have, and the long-term sustainability it offers. The methodology of the paper is based on a comparative analysis of studies and indicators. The literature in this field is becoming more and more extensive, as interest in this direction has been growing recently. This paper aims to analyze whether this direction towards biogas can be the optimal option for most European countries and the key to a sustainable energy source.