I can see that solar panels permanently installed on/above the top deck of PCTCs,
But portable solar panel on deck/hatches on ordinary cargo ships, (even "stackable) I don’t see as feasible for these reasons:
Salt spray will soon cover the panels and need to be cleaned to function optimally.
Having to remove the panels for deck cargo (and possibly for some cargo operations)
With the small crews on short sea ships today, who is going to do the above?
You see!!! It is called positive spin off effect . Doing Jezus work without even knowing it. That is his magic
You should be clappping Your green hands and support the guy. And Your beloved NORWAY and pension fund will only benefit from increased gas and oil sales.