Japan has coal, and there’s a massive oil pipeline from Siberia. They are looking at building an LNG pipeline from Kazakhstan I think it is. They ship a lot, and it’s expensive. Despite the obvious geology issues, they still are looking to move to pipelines.
What fuel is the solar power converted into? Hydrogen? Are you seriously proposing that ships full of high explosive are more immune to terror attacks than pylons? Lithium batteries? Ditto.
If we can create a useful fuel from CO2 and water plus renewable electricity then it’s all peachy, but I don’t know of any processes that are viewed as remotely technically possible at industrial scale.