Doesn't really matter. Child comment mentions $1.5B in heavy water costs. That's $1.1B USD. Assuming an old, 600MWe nameplate capacity and the planned 30 year s

Doesn't really matter. Child comment mentions $1.5B in heavy water costs. That's $1.1B USD. Assuming an old, 600MWe nameplate capacity and the planned 30 year service life at 80% capacity (although they last far longer) we're talking total generated 130TWh. That means heavy water contributes a total of 0.8c/kWh. The cost of raw Uranium is between $0.0015/kWh and $0.000015/kWh. [1] Disposal is like $500/kg, and 1kg gets you 315000kWh (0.16c/kWh). Once the very expensive reactor is up and running the costs are very, very low. [edit] Study pins it at 20% of the plant up-front cost. [1] https://en.wikipedia.org/wiki/Economics_of_nuclear_power_plants https://en.wikipedia.org/wiki/Economics_of_nuclear_power_pla... [2] https://inis.iaea.org/collection/NCLCollectionStore/_Public/34/087/34087588.pdf https://inis.iaea.org/collection/NCLCollectionStore/_Public/...