Electric tugboats

[dan_b]

I like the look of this.
That's a big boy battery though!

https://electrek.co/2021/07/13/first-fu ... batteries/

[AE-NMidlands]

I wonder what our man on Raasay would make of it?
I guess being in a harbour it can run back to its charging station if it gets low on juice and let another one take over.
A

[CrofterMannie]

Short journeys in a harbour is probably an ideal place for an electric boat but do sometimes wonder what the future is for ocean going shipping.

I once worked on a ship that had a fuel tank that held 16 000 m3 (of regular diesel). That's the equivalent of quite a big battery! I guess that's why there are a couple of ammonia fueled boats being trialed in Norway.

[Stinsy]

At one point nuclear powered ships where the “next big thing”, but apart from one single cargo vessel and a few icebreakers, nothing ever came of it. I think the maintenance outstripped the fuel savings.

[dan_b]

Nuclear powered vessels are pretty big in several navies - US, China, Russia and the UK all have nuclear warships/subamarines/aircraft carriers...
And then Russia has some floating nuclear power stations...