This is actually very regressive policy because it only rewards people who 1) own their own home and 2) can afford a significant capital investment. And under current retail rate structures it shifts the burden of maintaining the grid onto those who can't afford to make these investments and who will end up seeing there rates rise unless the cost of grid connectivity is increased.

It's also economically questionable because it's simply much cheaper to build and manage a smaller number of large batteries then thousands of home batteries.

I understand why these schemes are politically attractive; people like to own their own stuff. But there is a very real chance this increases the cost of energy here.