I am sure you know better than SSB experts on marine propulsion systems.
"Potential"
any engine that matches in power output and rpm has a potential. I haven't denied possibility of BATU being used as a marine generator.
Yes i am a naval architect and been so for more than a decade, and most of people in SSB are project managers, they don't do engineering if this is your point. I am in contact with them more frequently than you may imagine, there more than few non naval-architect engineers in Naval systems division of SSB.
First of all your 700 kW was wrong, Milgem has 750 kVA generators. You don't list kW, but kVA or kWe while speaking of a marine generator.
Your following statement was also off point, since the diesels on Milgem generators run at lower MCR (if you have read my post you would have found out)
Although BMC power utku diesel motor is capable of 830 kw thats more powerful from milgem/mtu secondary motor and also ready earlier than batu it is not chosen
My point is UTKU can not be used to generate 750 kVA at the desired continous rate. Also it is not more powerful than MTU or MAN generators, it is less. Read my post, and do some reading on marine engines, generators.
Turning an engine into a marine generator simply requires more modifications and adjustments than turning an engine into a marine engine. A generator runs even after the engines stop and at varying loads, non-stop.
Existence of an engine does not automatically make it marine generator. BMC is still yet to test their first marine engines on the USVs (Levend), integration is still going on and tests will commence. You need years of experience to build up to make a generator since a failed generator is not something you can't make up at the open seas.
Tübitak's latest DE is more promising but not sure if people influenced by BMC will allow it through. Tübitak RUTE is far ahead in terms of understanding marine engines.
As for you other attached image;
The listed values are for 100% MCR, a high density engine runs at 50 to 60% MCR. Consider the conversion losses and power factor while converting from DE's power output to kVA. We don't simply adapt an engine just because it fits to required power with its 90-95% MCR, the engine is run at lower MCR purposefully, run at lower MCR, less load, less wear, higher MTBF and relaxed maintenance schedule and also; a spare of 60% at your will to boost up engine when you need, in case of emergency. Yes marine engines on naval platforms can run up to 110, 120% MCR for a limited time (sometimes a day). This is a compact engine is not preferred simply for being compact, in comparison to a medium density engine, more or less it occupies the same space, but it provides a better maintenance schedule and spare power.
Yes we should eventually adapt BATU or RUTE engines for marine generators and i am not against the idea, or in fact i support more than you do; at least to begin with this is a nice roadmap to follow, but it can't be rushed. I don't recall if follow up Istanbul Class orders or ADKG orders are planned to be equipped with these engines, either.
It will start with USVs and non critical platforms in service at the navy ports (pusher port tugboats) and from there they can move on to generators.