[esusatyo]

I wonder how big of a market this is. I don't even know that many people who owns a Genset.

[gnoway]

I think there are some advantages. No gas fuel, no noise, maybe less maintenance. Insurance vs. a genset should be different. I'm assuming you hook these up with a bypass switch, so you effectively have a whole home online UPS; this would eliminate brownouts and dirty/noisy power. I wonder if there's a power factor advantage on the utility side as well.

[jpitz]

Power factor advantage in what way? I would think a large battery charging device would only lower a household's power factor.