It might help to have some context. I pulled up the NH Net Metering rules and see that they charge the following:

Transmission fees (FERC/federal fees): $12.92/625kWh = $0.02

Distribution fees (PUC/local fees): $25.88/625kWh = $0.04

Compared to this ship: 1000 miles: $41.5 / 1000kWh = $0.04

A full comparison would require knowing what distances NH moves power over, and what other transmission would need to be coupled with one payload from the ship. But I think that this shows the costs may be in the right ballpark. And - having this as an option where lines are not possible (NIMBYism, etc), or in the face of natural disasters, is a huge win.

Now.. is that ship electric?