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Ubiquitous digitization is a domain of the community that seems to be increasingly visible in the education process. It can bring many benefits not only to students but also to other entities. Knowledge is one of the most important values. It is largely the basis of the modern economy – Knowledge Based Economy (GOW). The education process is one of the most important factors influencing the civilization level of the society, and teaching is a process consisting primarily of activities that lead mainly to the organization and direct management of the learning process, aimed at creating conditions conducive to learning, and is related to the teacher's personality and work. Both the literature on the subject and observations of the education market clearly indicate that the issues related to digitization and its importance in the education process should be considered in the context of teacher's work at school. The article focuses on the teaching process in the context of organizing a teacher's workshop at school, and to a lesser extent on teacher's qualifications and professional competences. Moreover, attention was focused on issues related to the problems of equipping schools with high technology teaching aids.

The energy transition is one of humanity’s most significant challenges. All micro, small, medium, and large enterprises will have to face it, and some are already making progress. This paper focuses on the involvement of the smallest actors in the energy transition. Micro and small enterprises comprise the largest part of the economy and significantly impact its development. Concerning the broad scope of their activities, these entities are characterized by a specific owner–manager relationship. This means that the final decision is influenced by business objectives, the manager’s approach, their awareness of change, and personal and other factors. Based on the analysis of data from 400 companies, it was found that the involvement of micro and small enterprises in the energy transition is related to their market and financial success.

Many factors influence the prices of energy commodities and the value of energy and fuel companies. Among them there are the following factors: economic, social, environmental and political, and recently also the COVID-19 pandemic. The aim of the paper is to examine what the probability and intensity of a decrease in the prices of shares of energy and fuel companies listed on the Warsaw Stock Exchange (Poland) was during the first wave of the pandemic in the first quarter of 2020. The study used the survival analysis methods: the Kaplan-Meier estimator, the test of equality of duration curves and the Cox non-proportional hazards model. The analysis showed that the probability and intensity of price decline of energy and fuel companies in the initial period was the same as that of other companies. The differences become apparent only after 50 days from the established maximum of their value. The risk of price declines in energy and fuel companies increased significantly. This situation was related both to a temporary reduction in demand for energy and fuels, pandemic restrictions introduced in individual countries and the behaviour of stock market investors.

The business model is understood as a way of generating revenue and creating value. This article aimed to define the framework and detailed characteristics of the business model in corporate reporting in the energy sector. The study also addressed the issue of value creation and examined the correlation between reporting information about the business model and the value of the enterprise, calculated using selected accounting measures. The research was conducted in 2021 on all listed companies in the energy sector included in the WIG20 index in 2019–2020. The research methodologies included critical analysis of the literature, analysis of the content of corporate publications, comparative analysis, analysis of phenomena and synthesis of results, Spearman’s rank correlations, and graphical data presentation. The originality of our research concerns directing attention to the disclosure and reporting of information about the business model in corporate reports in the energy sector in Poland. This is the first such study in Poland conducted on companies in the energy sector; therefore, it is treated by the authors as a pilot study. The results show that companies in the energy sector included in the WIG20 index do not disclose information about their business models in reports and the structure of published reports is very diverse, which makes it even more difficult to compare financial and non-financial data. Enterprises in the energy sector disclose financial and non-financial information in financial statements and the reports of the management board on the activities of the company and the capital group. The financial information disclosed by the companies most often included financial and productive capital. Energy companies are reluctant to disclose information about by-products and waste.

A comparative parametric analysis is carried out of a small-scale combined heat and power plant incorporating a heat pump and the conventional system in which heat is produced in a hot water boiler and electrical energy is drawn from the power grid. Relative exergetic efficiency is defined as the quotient of exergetic (rational) efficiencies of the cogeneration plant and the related conventional system. Dependence of this efficiency on the power-to-heat ratio for chosen values of parameters characterizing the compared systems is calculated and shown pictorially.

Abstract The purpose of this investigation was to select the lowest energy-consuming configuration of a ribbon agitator. The criterion of the selection was mixing energy. The interaction between power consumption, mixing time and the geometric parameters of a non-typical helical ribbon agitator was also investigated.

In today’s social, economic, and political reality, it cannot be overlooked that the energy self-sufficiency of municipalities not only optimizes the lives of the inhabitants of the municipality but also, in a broader perspective, the services provided by the municipality. The sustainable development of a municipality will therefore depend on its degree of self-reliance and self-sufficiency. Economic and technological considerations are not sufficient for the municipality to achieve optimal energy independence without normative conditions. The current (2021/2022) trends in electricity prices and in the development of national and international policies and strategies for electricity generation from renewable energy sources also make the change in the energy market structure toward distributed generation. The main objective of this paper is a theoretical analysis of the legal solutions in force in Poland that allow building energy self-sufficiency in municipalities and their adequacy to the current economic, technological, and political conditions. The scientific discussion will focus here on research problems related to the impact of the national regulations on the gradual assumption of control by municipalities over the generation and distribution of electricity with regard to energy produced in RES installations and the independence of municipalities from the national energy management and supply system.

The problem of sustainable city transport is a growing field of study, and will be addressed in this paper. With the rising significance of present transportation systems’ negative externalities on the environment, such as the unavoidable increase of air pollution levels, cities seek sustainable means of transport and reduction of combustion cars’ utilization. Moreover, improvements in the area of renewable energy sources have led to rising trends in sustainability, driving the usage and production of electric vehicles. Currently, there is an increasing tendency of looking for more sustainable transport solutions, especially in highly congested urban areas. It seems that in that case, electric bicycles can be a good option, as they yield more benefits in comparison to cars, especially combustion cars. In this paper, we identify an assessment model for the selection of the best electric bicycle for sustainable city transport by using incomplete knowledge. For this purpose, the Characteristic Objects METhod (COMET) is used. The COMET method, proven effective in the assessment of sustainable challenges, is a modern approach, utterly free of the rank reversal phenomenon. The evaluated model considers investigated multiple criteria and is independent of chosen alternatives in the criteria domain. Hence, it can be easily modified and extended for diverse sets of decisional variants. Moreover, the presented approach allows assessing alternatives under conditions of incomplete knowledge, where some data are presented as possible interval numbers.

Renewable energy consumption is the call by United Nation Sustainable Development Goals, and sustainable consumption is the only solution for the future. This study found that the solution to the framed problem has a requirement to categorize the green consumer value parameters in hierarchy of importance for five specific RESs and their alignment with environment policy based on a comparison of Poland and India. The study revealed the importance of each criterion for renewable energy sources providing, a comparative table of Poland and India. The methodological approach used secondary data for selecting countries, and primary data are used for statistical analysis of Automatic Linear Modelling. The research concludes that the CRITERIA4 is one of the most important that emerged with all five RESs for Poland and three RESs for India. Both countries are aligned with the UN sustainable development goals and are switching over to all means of sustainability. Poland scores a higher value of importance compared to India, which justifies the awareness of consumers.