Research Article
An Evaluation of SMR Economic Attractiveness
Table 1
Scenario input data to INCAS test cases.
 Input  LR  SMR  Notes 
 Plant operating lifetime (years)  60  60  Same technology enhancement and reliability [8] assumed for LR and SMR.  Estimated construction period (years)  5 [9]  3  Reduced construction time for SMR due to reduced size and assuming design simplification [10].  Overnight construction cost (€/kWe)  4000  Estimated from LR capital costs [10]  LR [11–13].  Operation and maintenance cost (€/MWh)  9 [14]  10.8  SMR O&M cost estimated from LR [15] (SMR/LR ratio = 1.2x).  Fuel cycle cost (€/MWh)  6.7 [8]  6.7  Same fuel cost for SMR: longer core life, but higher enrichment and poorer neutron economy (leakages).  Decontam. & decommissioning sinking fund (€/MWh)  3  5.9  SMR decommissioning cost estimated from LR cost [16, 17] (SMR/LR ratio = 2x).  Electricity price (€/MWh)  80  80   Plant availability  93%  95%  Based on estimations for GenIII/GenIII+ LR [1] and SMR [18]. 

