Climate change and unsecured energy supply are topics that become increasingly important in today’s society. Although renewable energy technologies may be a long-term solution, more efficient energy use potentially makes a high and economic contribution to the given challenges in the short term. New CO2 regulations, rising energy prices and environmentally aware customers make energy efficient ...

We have been observing large fluctuations and price increases in electricity markets recent years. The COVID-19 pandemic, rising energy costs, political instability increasing demand for the factors intensifying problems. This causes uncertainty related to maintaining security. Energy security is an element of national system. In this context, question arises whether Polish companies are able a...

Digital transformation is an ongoing process that driven by the recent advances in digitalization as well development of information and communication technologies (ICT) penetrate all socio-economic fields everyday life business. In this paper, we describe digital energy companies. We show successful based on skills, expertise knowledge employees need to be created maintained. addition, compete...

The bankruptcies of companies have been predicted with numerous methods. In this paper, the ensemble of Locally Linear model is compared to Linear Discriminant Analysis, Least Squares Support Vector Machines and Optimally Pruned Extreme Learning Machines. To create the ensemble, diffrerent basis for the locally linear models as well as different combinations of variables are used in order to ob...