These are container barges in The Netherlands. They’re putting the batteries in containers – that makes sense.
https://www.sci-nature.vip/2019/10/large-tesla-ships-all-electric.html?m=1
Update Mar 4 – I saw a short video on TV, might’ve been DW News, about fishermen in an African country using a small electric outboard motor powered by a couple batteries that were charged by solar. The gasoline motors were polluting the lake and the gas cost a lot. Now they can fish all day with no cost for fuel.
