“…In addition, most studies in the field of energy efficiency deal with manufacturing non-SME companies (Finster and Hernke, 2014;Stefana et al, 2019;Andrews and Johnson, 2016;Backlund et al, 2012;Brunke et al, 2014;Cagno et al, 2019;Chiaroni et al, 2016;Cooremans, 2012;del Río González, 2005;Fawcett and Hampton, 2020;Fiedler and Mircea, 2012;Fleiter et al, 2012a;Fleiter et al, 2011;Hampton, 2019;Haq and Jacobsen, 2018;Henriques and Catarino, 2016;Hertel and Menrad, 2016;Hoyer et al, 2020;Kinelski, 2020;Mickovic and Wouters, 2020;Morais et al, 2020;Olsthoorn et al, 2017;Perroni et al, 2017;Phylipsen et al, 1997;Ponomareva et al, 2019;Pye and McKane, 2000;Rohdin and Thollander, 2006;Sa et al, 2015;Safarzadeh et al, 2020;Sardianou, 2008;Schlomann and Schleich, 2015;Schulze et al, 2018;Shinkevich et al, 2020;Soepardi et al, 2019;Stephenson et al, 2010;Sudhakara Reddy, 2013;Thollander et al, 2013;Thollander et al, 2007;Thollander and Ottosson, 2008;…”