When coal mines close and solar panels rise, Greece's energy workers discover they cannot simply retrain for the next job. A new study of 500 companies across Greece's transition regions reveals a troubling truth: the skills needed in energy, construction, and technology are so specialized that more than 91 percent cannot be transferred between sectors—upending the assumption that green skills training can be one-size-fits-all.
The research, led by George Galanos and colleagues at the World Review of Entrepreneurship, Management and Sustainable Development, examines labor markets in Greek regions directly affected by the phasing-out of coal and the shift to renewable energy. It comes at a crucial moment, as the European Union's Green Deal and Just Transition Mechanism promise to support workers and regions moving away from fossil fuels. But the study suggests those well-intentioned policies may not account for how unevenly skills gaps are distributed across sectors.
The energy sector—facing the most direct structural upheaval as it transitions from coal to renewables—carries the deepest and most complex skills shortages. Employers report acute deficits in financial expertise needed to structure investments in emerging technologies like hydrogen systems, along with technical and strategic capabilities required to manage evolving energy networks. These are not competencies that can be taught in a week or borrowed from a neighboring industry. They demand sector-specific knowledge built over time, in context.
Construction faces a narrower but still significant skills gap, concentrated specifically in green building practices. Workers accustomed to traditional construction methods need retraining in energy-efficient design, sustainable materials, and climate-adapted techniques. In information and communications technology, skills gaps appear smaller overall, though researchers caution this may reflect limited awareness of the problem among survey respondents rather than an actual surplus of talent.
The finding that skills are almost entirely non-transferable between these three sectors challenges a widespread assumption in green transition planning. Policymakers and trainers have often treated "green skills" as a unified labor category, designing broad training programs with the hope that workers displaced from fossil fuels could flow into emerging sectors. This research suggests that approach is too simplistic. A power plant worker cannot become a software developer through a six-month green skills course. A construction tradesperson trained in traditional building techniques faces a genuine learning curve when moving to net-zero building standards.
What makes this study particularly valuable is its emphasis on the uneven pace of transition. The energy sector is moving fastest, creating urgent skills gaps now. Construction and ICT sectors face pressure too, but on different timelines and in different ways. Generic training programs risk leaving workers undersupported while sectors remain under-staffed.
The implications are clear: the European Green Deal's promise to support workers shifting away from fossil fuels requires much more granular, sector-by-sector intervention than current approaches typically acknowledge. Success will depend on tailored skills pathways designed for energy specialists, construction professionals, and technology workers separately—not on the assumption that green transition needs can be addressed with a single training blueprint. As the research concludes, there is significant work to be done in awareness and targeted training to ease the transition to a low-carbon future, despite grand political statements at the policy level.