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For Denmark, Large uncertainties on the expected costs of SMRs in the 2040s and 2050s 

The expected costs of SMRs in the 2040s and 2050s are extremely difficult
to project, because Western manufacturers are still proceeding towards
their first units. There are very large differences on the estimated
construction cost levels of the first-of-a-kind (FOAK) units ranging from 6
M€/MWe to 16 M€/MWe and uncertainty on what manufacturers include in
construction cost estimates.

Due to long lead times and high capital costs,
it is critical for the manufacturers to reach successful FOAK projects that
would take their SMR technologies on more favourable cost trajectories. The
first actual realized cost data can be expected when the first experiences
from actual serial production in Canada, UK and maybe Sweden could be
expected between 2035 and 2040.

Therefore, a main conclusion from this work
is, that it is probably 10 – 15 years too early to make trustworthy cost
projections. With that said, it is our central estimate that the overnight
construction costs in a Danish context could decrease to 8 M€/MWe in 2040
and approach 7 M€/MWe in 2050 with large uncertainties towards both
optimistic and pessimistic trajectories.

 Danish Energy Agency 5th March 2026, https://ens.dk/media/8419/download

March 11, 2026 - Posted by Christina Macpherson | business and costs