question

The quickest win would likely be a Multiplus II GX as that has all the components you require, other than batteries.

You could of course use a separate inverter, charger and display/controller, the GX device, or even forgo a separate controller and use a smart device/s that can be monitored / managed with a phone using Bluetooth.

I am not entirely sure but I 'think' the smallest inverter charger with a built in GX device is 3000VA which may be too big, and or costly, for your requirements.

A big advantage of having a GX in the system is the Victron Remote Monitoring (VRM)

Have a look at some literature, it will give you a good idea what to think about and give you enough basic options to begin looking at specific solutions...

THIS is probably as good a place as any to have a first look.

Hope that helps.

Hi Andy,

your best bet would be to base your setup around a Multiplus/ Multiplus 2 integrated inverter/charger rather than separate units. The Multiplus has a built-in changeover switch and is connected between your generator and your cabin. When the generator is running the multiplus will pass power through to the cabin and charge the batteries. As soon as the generator stops it will switch into inverter mode and supply power to the cabin.

You'll need to know your maximum power draw needed during the day and overnight to correctly size the Multiplus and maximum duration between generator runs to size the battery bank (factoring in weekends etc).

There are options with regard to battery monitoring (local and/or remote), and a few other other things you may need to configure the system.

You're probably best off looking for a local Victron dealer to discuss this with as they will be able to advise better than internet armchair "experts" like me ;)