Anytime I hear some company wants to put a box in every yard throughout the world I get very skeptical. Not saying this box doesn’t work. Just saying whatever makes it work could probably be used in a way that wouldn’t require having millions of boxes all over the place.
Putting a box in every house is not their immediate goal. Selling big units to industry is their first goal. Selling big units to utilities is their second goal. Selling small units in areas with erratic electrical supply is later down the line.
They want to sell units to the utilities. If a gas line is available, it would be cost effective to install one at a substation to supply an entire neighborhood, this would reduce strain on, and extend the life of the current power grid.