[Johnny555]

Cargo ships have ridiculous life expectancies measured in decades, so it's very likely to make a significant dent.

Note that 12 tons/day was the best case, the average was 3 tons, so that's more like $2000/day or around $400K/year assuming the ship is at sea 200 days/year.

Anything on a ship with moving parts has significant maintenance costs, so it'd be nice if they had a ballpark figure of the installation/maintenance costs as well as expected lifetime of the system.

And what happens in a serious storm? It looks like these can be rotated but not folded down flat, so what happens in unpredictable winds during a storm?

[jcgrillo]

They do fold flat [1]. [1] https://youtu.be/AB7cLkSVmJA

[Johnny555]

Oh that's cool, in the photo in the article they looked too tall to lay flat without interfering with each other.