NS Sevmorput
NS Sevmorput is a nuclear-powered cargo ship operated by Rosatomflot, powered by KLT-40 of about 135 MWt. Operating.
The only nuclear-powered merchant ship in service anywhere. A container and lighter-aboard-ship carrier that can break 1.5 metres of ice, it needed refuelling only once up to 2003. Approved for decommissioning around 2014, it was returned to service in 2015 instead.
Propulsion
| Reactor | KLT-40 |
|---|---|
| Reactors per vessel | 1 |
| Thermal output | 135MWt |
| Fuel enrichment | not disclosed |
| Refuelling | not disclosed |
Vessel
| Category | cargo ship |
|---|---|
| Role | civil |
| Operator | Rosatomflot |
| Country | Russia |
| Vessels in class | 1 |
| In service from | 1988 |
| Status | Operating |
Other cargo ships
| Class | Enrichment | Status |
|---|---|---|
| Mutsu | - | Retired |
| NS Savannah | LEU | Retired |
| Otto Hahn | - | Retired |
Sources
- World Nuclear Association, Nuclear-Powered Ships · retrieved 2026-09-07
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data