This is good to see. Small generators are ubiquitous, and they've always struck me as a nuisance that deserves a better alternative. They're noisy and locally polluting, and I suspect very inefficient at low loads. Rolling up with a battery trailer feels much cleaner, and you can stick a few hundred watts of solar panels on top as an extender for light users.
Generally speaking, solar on the roof delivers less power than it costs to lug around for vehicles.
BESS: Battery Energy Storage System
looks like a bit of a joke as it is corporate board designed by comittee,tentitive ,undersized,
limited deployment virtue signalling show piece, rather than an engineered solution to real world requirements.