**Contents**


Reprinted from: *Energies* **2021**, *14*, 7041, doi:10.3390/en14217041 . . . . . . . . . . . . . . . . . . . **177**

#### **Rafał Kuzniak, Artur Pawelec, Artur S. Bartosik and Marek Pawelczyk ´**


#### **Krzysztof Kud, Marian Wozniak and Aleksandra Badora ´**

