12x Servo Motors (660W) powered by an 48V Alternator (7,5kw) - possible?

Hello,

following project:
12x Servo Motors (660W) should be powered from a 48V alternator - the alternator is powered/driven by an hydraulic motor

Those 12 Servo Motors will working all the time forth and back

And now I am coming to the 48V power supply:

I found this 48V alternator like:
7.5kw 48 volt 200a Alternator


And now I am not sure, do I need a batterie between Alternator and Servo – if yes how big should be that batterie (maybe 4x12V batterie)
Do I need a reverse current switch? If yes – which one?
Do I need a charging current controller? If yes – which one?
Is the alternator big enough to powering that 12x Servo Motors – working all the time?
There are some addition parts that I need?
...
...

The goal: A calculated plan/system that I can powering those 12 Servo Motors without problems :)

Thanks

Here the Servo Motor: https://www.sorotec.de/shop/JMC-Servo-Motor-mit-integriertem-Servotreiber-660-Watt---72-Volt---3000-1-min.html