## 3 Results
Experts note that the rapid pace of technological advancement demands continuous adaptation, particularly in implementing green technologies like renewable energy systems (S1 EL4, S1E12, S1E15, S2 EL1, S3 EL8, S3E18), crucial for sustainability (S2 EL2, S3E19), but more crucial for the management of these technologies during adaptation and integration into the processes (S1E14, S1E15, S3 ES5 EL11, S41 EL2, S5E111) and sharing the responsibilities of management (S1E3, S2 EL3, S2E11, S2E13, S3 EL8, S3E19, S5 EL11, S5E11) within the POE. During participatory observation at scientific conferences, it was identified that if a port were to begin generating energy from renewable sources, the existing energy infrastructure may not always be equipped to accommodate the generated energy volumes. Figure 3: Visualization diagrams representing focus group interview results: (**a**) word cloud drawing presenting the dominant challenges for POEs; (**b**) word cloud drawing presenting effective managerial interventions for resisting challenges; (**c**) results of cross-content analysis for estimating the relationship between technological and managerial challenges; and (**d**) results of cross-content analysis for estimating the relationship between technological and soft organizational challenges such as knowledge, skills, and culture. In pictures (**c,d**) the frequency of of experts’ answers on specific object from specific category are presented by black points. This would necessitate the expansion of the port's infrastructure, including the implementation of energy storage systems, thereby increasing costs and requiring specific external regulatory interventions. Even after addressing the infrastructure integration challenges, issues related to alternative energy management would persist, as there is a general lack of expertise in this field--not only at the seaport or national level, but also within the global maritime industry. The cross-content analysis revealed that expert opinions highlight the critical relationship between technological challenges and the lack of knowledge, skills, and cultures of sustainability (Figure 3d) within POEs. According to the analysis of opinions in the different stakeholders' categories, it was discovered that there are some tendencies in the distribution of opinions (Table 1). The analysis of expert opinions, as presented in Table 1, identifies 24 instances of challenges related to technological factors and managerial competencies. Of these, 13 cases (54%) demonstrate a linkage between technological challenges and a lack of managerial competencies. Additionally, 14 cases (70%) suggest an association between technological and cultural-behavioral challenges, indicating that these challenges are frequently interconnected in expert assessments. The analysis further disagregates expert responses by stakeholder group. Among international experts, 80% of primary port service providers and 50% of governmental and non-governmental organizations identified a connection between technological challenges and managerial competencies. By contrast, Lithuanian experts highlighted this link more frequently within port management organizations and logistics sector representatives. With regard to the relationship between technological challenges and cultural/behavioral factors, Lithuanian experts most often noted this relationship among primary port service providers and governmental/non-governmental organizations. International experts, however, emphasized this connection within port management and logistics service providers. While the data reveal differences between expert groups and stakeholder categories, these differences do not provide strong empirical evidence of a meaningful relationship in opinion differences between different group of stakeholders.