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This thesis investigates the personnel requirements for the operation and maintenance of nuclear

power plants in Sweden, with particular focus on future staffing needs related to the national

nuclear expansion. Using a combination of literature review and internal data provided by

Kärnkraftsäkerhet och Utbildning AB (KSU), the study estimates the required workforce for

seven key technical roles: control room operators, station technicians, mechanical engineers,

electrical engineers, instrumentation and control engineers, chemists, and radiation protection

technicians.

The analysis includes comparisons between future large-scale reactors (LSRs) and future small

modular reactors (SMRs). Calculations were performed in dynamic spreadsheets and are

presented in tables, including staffing per megawatt electrical output (MWe). The results indicate

that SMRs may require fewer staff per unit, but more staff per MWe. Study highlights the

importance of long-term strategic workforce planning to ensure operational safety and regulatory

compliance. This thesis contributes to the understanding of competence supply challenges within

the Swedish nuclear sector and supports planning for a sustainable nuclear workforce.