I am slowly finding my way around please be patient.
I will put up pictures when I have worked it out.
2 x 5kw Marlin 48v motors from lynch marine
based in the uk
12hp kubota self marinized with Beta parts
12v 175ah alternator
fitted to the engine
7.5kwhr bank for the drive
4kwhr house bank
Power from the house can be drawn and fed to the drive system using a 2.4kw inverter
and 48v power supplies.
3.5kts using 55amps
diesel only 5kts / 6.5k with clean props and hulls
I have used diesel / electric to push against 4.5kts of tide and 30kts of wind
to get into sheltered water
when myself and crew both seasick, I don't normally use more than 30% of the drive bank (so as not to kill the batteries) and keep the power for if needed, with diesel running motor can be used as a generator to recharge batteries
and supply 2nd electric drive.
under sail with motors at idle with a 3.5amp draw this will drop to about 1amp when sail speed reaches 5-6kts. Unfortunately I can't swing props large enough for the motors to regen under sail.
I am hoping to fit enough solar
to maintain 1.5 - 2kts on solar only sunny days of course.