Figure 2
Each level is represented by an arrow on the left pointing to a corresponding rectangular box on the right describing adopter categories. From top to bottom, the levels are as follows: Level 3: ‘Leading’ adopters: Minimum criteria with a score between plus 3.76 and 5.00. Description: “Have fulfilled at least two leadership criteria (one of which must involve integrating digital technologies in energy efficiency strategy) and have adopted at least one core and one advanced technology in both support and production processes”. Level 2: ‘Progressive’ adopters: Minimum criteria with a score between plus 2.51 and 3.75. Description: “Have fulfilled at least two leadership criteria and adopted at least one core technology in both support and production processes”. Level 1: ‘Intermediate’ adopters: Minimum criteria with a score between plus 0.90 and 2.50. Description: “Have either fulfilled at least one leadership criterion or adopted a core digital technology in their support or production processes”. Level 0: ‘Non’ adopters: Minimum criteria with a score of 0. Description: “Have not identified the necessity of integrating digital technologies into their energy efficiency practices”.The four levels of the maturity model with the associated score and minimum criteria