It's been increasingly scaled down. But not quite to the point of being done residentially.

Places like hospitals have installed multi-megawatt turbines because it saves them the cost of standby backup generators, instead they can use the grid as backup for their internal generation.

https://www.toromontpowersystems.com/electric-power/products...

Also, heating loads residentially may be bigger than electric loads, but grid-intertie system can resolve that.