I live near the Ampere ferry pictured in the article. And one interesting side-effect of electrification is that they don't have enough power to spare for a full kitchen (with griddles, etc).
Now they have to sell ready-made sveler instead of cooking them on the spot and serving them fresh. Electric ferries are essentially killing "norwegian ferry food culture" to much despair for svele loving passengers :P
: https://www.nrk.no/sognogfjordane/droppar-kiosken-pa-batteri... (article is in nynorsk ("new-norwegian") and google translate is basically useless)
I know that some use electric heat - a quick search suggests up to 10 kW for a decent-sized commercial unit - but it seems more likely that they opted to increase the efficiency of the ferry and make it cheaper by removing the kitchen than that it was an unsolvable conundrum.
However, there really isn't that much tradition for gas powered cooking in Norway (other than "BBQ"), almost everything is electric and power is really cheap.
Many of our other newer generation ferries are LNG powered, which probably comes with tons of strict rules for open flames on board. Might just be they've inherited some safety regulations for the electric ones as well.
And then mostly because of a combined effort between stores to try to sell the "American" BBQ experience.
Honestly hearing the "extreme" right fretting over the nation clandestinely going Muslim i point to things like the above and Halloween themed stores each September as an indication that we are already going American.
Damn it, for the last year or so there have been a "non-permanent" presence of US Marines on Norwegian soil, something that was never the case for the whole of the cold war.
I am honestly not sure what is going on with the nation any more...
For the troops in Norway, my guess is that NATO is trying to make sure that Russia has to watch it's entire western border, and the hope is that this will help spread their resources too thin to do anything like they've been doing in eastern Ukraine. But Erna doesn't seem to be interested in explaining why she invited them in.
Even if such a thing were feasible on buildings, the ferries navigate so the cells cannot be simply tilted south.
I think this is the classic lets blame something else other than we're being cheap and lazy.
Kinda like how BART doesn't provide bathrooms anymore because '911'
Geez. Just use propane! Here are some American consultants: https://en.wikipedia.org/wiki/King_of_the_Hill
Where as an older ferry near me used to offer a panorama view of the fjord during crossing, and ample space non-vehicle passengers, the new one barely have room for two people to meet while going to and from the toilets, never mind ordering some food and sitting down to enjoy it.
You often end up going on multiple ferries on a trip, and timing ferries is an art ;)
If you want to travel between Bergen and Stavanger (A regular route for many people between two major cities on the south-west coast - along European Route E39 - total 5h travel time) you'll hit two ferries  - Halhjem->Sanvikvåg (40 min) and Arsvågen->Mortavika (22 min). In the past you'd hit 3 ferries, but one was replaced by one of the world's deepest and longest subsea tunnels.
A popular scenic route along Helgelandskysten has 6 ferries.
Amount of ferries required for a trip has been slowly dropping as we try to tunnel and bridge the most trafficked routes (ex: one of the world's longest suspension bridges - the Hardanger Bridge). However, some of our fjords are really wide and over 1000 meters deep, I guess ferries are here to stay as building infrastructure is really hard in this country :)