[1] Aalto Univ, Dept Mech Engn, Espoo, Finland
[2] TalTech, FinEst Ctr Smart Cities, Tallinn, Estonia
[3] Hamburg Univ Appl Sci, Dept Environm Engn, Hamburg, Germany
[4] Competence Ctr Renewable Energy & Energy Efficien, Hamburg, Germany
[5] Nanjing Tech Univ, Coll Urban Construct, Nanjing, Peoples R China
[6] Norwegian Univ Sci & Technol, Dept Energy & Proc Engn, Trondheim, Norway