1 Subjects: “...Italy...”

2 Subjects: “...southern Italy...”

3 Subjects: “...Italy...”

4 Subjects: “...Italy...”

5 Subjects: “...southern Italy...”

6 “... and methodological approaches, case studies from Bulgaria, Cameroon, Ecuador, Ghana, Italy, Mexico, North Carolina...”

7 “... contributed by colleagues from China, Egypt, Italy, Jordan, Mexico, Pakistan, Saudi Arabia, Turkey, etc...”

8 “... through Life Cycle Assessment; Road Thermal Collector for Building Heating in South Europe (Italy...”

9 “..., Ecuador, Germany, Greece, India, Italy, Mexico, The Netherlands, New Zealand, Poland, Spain, Sri Lanka...”

10 “... carried out in different parts of the world, such as Spain, Portugal, France, Italy, Hungary, China, South...”

11 “... in Palermo, Italy in 2018. This Special Issue of Energies, precisely dedicated to 13th SDEWES Conference...”