The European Union aspires to pursue an ambitious climate policy. The energy sector is a key tool to ensure success in this area. At the same time, excessively ambitious targets can be a serious problem for individual member states. The aim of the article is to analyze the possibilities available to the Polish energy sector in the context of the assumed EU climate neutrality goals by 2050. The analyzed research problem concerns, in particular, two areas of strategic importance for Poland: the coal sector and the renewable energy sources sector. The role of the former should be significantly reduced in the coming decades, while the position of the latter should be substantially strengthened. The juxtaposition of these challenges with the Polish economic, social and technological realities is the main subject of analysis in this text. The method of system analysis with elements of a decision-making approach will be used. This will allow for an effective analysis and review at the research level of the most important problems and challenges faced by Poland in light of the necessary adjustments to be made in order to achieve the priorities assumed by the European Union. The hypothesis of the article is that Poland is able to effectively meet European climate targets, although the implementation of this challenge requires decisive action on the part of the government, 6 as well as an adequate response from investors and society. To this end, appropriate actions must be undertaken at both a strategic and operational level.

The ongoing climate changes necessitate an effective climate policy. The energy transition is now an important topic and problem, especially in Poland. (1) The undertaken analysis of the problem of energy transition is important for political, social and technological reasons. Political, because it shows the weakness of the implementation of Polish energy policy in regards to climate change. Social, because energy transition will bring about significant social changes in the largest industrial region of Poland. Technological, as the departure from fossil fuels requires the introduction of other sources of energy on a massive scale, for which Poland is not prepared. The aim of the study was to critically analyse the activities to date in the field of energy transition in Poland. The second goal of the analysis was an attempt to answer the question of whether the process of energy transition and achieving the goals set in the EU’s European Green Deal are possible at all until 2050. (2) To achieve the goals, the system method and the decision-making method were primarily used. These methods allowed for an examination of the main determinants of the Polish energy transformation. (3) The main results include the confirmation, contrary to the announcements of the Polish government, that despite the adoption in Poland of the strategy “Poland’s energy policy until 2040”, the effective implementation of the energy transition before 2050 is not only very difficult, but may even be impossible to implement in the assumed time. This is due to political, economic, social and technological conditions. Coal energy is outdated, expensive and ineffective. Due to natural conditions, wind energy is not able to meet the energy demand of the industry. The development of nuclear energy is only in the planning phase. (4) To sum up, in the next thirty years, Poland will not be able to achieve the assumed effects of the energy transition, which is in contradiction with the official declaration of the government.

The present article presents an analysis of the potential application of 3D printing in the critical infrastructure system. An attempt has been made to develop case studies for selected critical infrastructure areas, particularly with reference to the area of energy supply. The need for 3D printing applications is identified based on expert research in the energy industry. It identifies the application schemes determined by the technical and logistical possibilities associated with 3D printing in its broadest sense. A review of additive technologies with a view to their application in selected phases of critical infrastructure operation, including in crisis situations, is also carried out. Furthermore, a methodology for incorporating 3D printing into the existing critical infrastructure system is proposed. As a result, the following research hypothesis is adopted: the use of 3D printing can be an important part of measures to ensure the full functionality and efficiency of critical infrastructures, particularly in crisis situations.

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This article deals with the importance of natural gas as an energy source in Polish energy policy� Its purpose is to analyze the extent to which natural gas can provide for ensuring state energy security� This article covers issues related to the diagnosis of the gas sector in Poland (the most important economic entities, the functioning of the gas market), its role in the national energy strategy and prospects for future gas use� The article points out that natural gas, although important for maintaining and securing state energy security, is, however, not crucial in this regard� Multiannual strategies envisage diversification of the way of generating energy, which means the opportunity for renewable energy sources (RES) and nuclear energy� Natural gas has a secondary meaning in this context�