Originally Posted by sndog
Still deciding between the two. Any pros/cons?
100A dock outlets will only be in places expecting big boats - say 70' or bigger, and probably more in the 100'+ range. 50A outlets will be MUCH more common So based on that I'd go with two 50s.
That said, if you have two 50s, then you need to split up your loads between the two. Dedicating one to HVAC, and the other to everything else is common, but certainly not the only way to do it. But it has the advantage of letting you run the boat off a single 50A outlet as long as you don't need HVAC.
Just as one example, I have three load panels in the boat; Inverter loads, which is pretty much everything, non-inverter loads which is only the hot water heater and shore chargers, and HVAC. Then I have two 50A shore cords, and I can any of my load panels to either shore cord. So I can run off one cord or two, with loads split up in a number of different ways. It's relatively easy to do in a new build, but could be a lot harder in a refit.