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].