What is their carbon footprint? What % of the energy consumed (for Internet but also driving) comes from the solar panel vs ICE? It's nice to live in the nature, but is it ruining it?
How much WP you got on there?
edit: just read you got 3*350wp
While that is plenty for your computer and routing, do you have any other electrical devices on board?
You have a tour of the vans inside?
Sure enough for the power consumption of the modems, but I don't think the 5G networks are solar powered in Australia. Using multiple networks at the same time will use more power than using only one.
Does a 5G/4G tower consume more energy when one extra device is connected to it (for redundancy), but not actually transferring data? The answer might be yes, but it'd be very marginal.