Hi,

it will be enough to run your fridge/freezer and water pump. You've no chance with an electric shower though!
Even with mains electric you'll be pushing to run an electric shower.  In the UK every house gets a 12KW supply.  Here the norm is 5.5KW with some contracting 10KW - do you know what yours will be?

You'll need to check the power rewuirements of your shower - most are 8 or 10KW.

They are easy enough to wire up - you'll have a socket on the generator - you need to run a wire from the input side of your differential on your power board to the generator plug.

Hope this helps


Nigel