Not huge. I have a bluetti AC200L and 1000 watts of mismatched panels. It’s plugged into the wall socket and switche to grid power at 40% of capacity.

Router and modem plus NAS average a continuous 70 watt draw. The fridge is the biggest draw as it turns on regularly and uses about 80 watts, and runs a defrost cycle for 40 minutes at 300 watts.