Adaptation of the cost optimal level calculation method of Directive 2010/31/EU considering the influence of Turkish national factors

Analyses verify interrelation between all stages of the framework methodology. According to results, it is crucial to improve the methodology in terms of reference building definitions and global cost calculation periods throughout the adaptation procedure of national cost optimality calculation method. Furthermore, collaboration with national market is a key issue for achieving a convenient calculation methodology. The analyses also reveal that, reference building definitions, climate, cost calculation periods, amount of capital and unsteady financial rates have considerable influence on cost optimal analysis at national level.