When they built it the cost of the battery was the most expensive, followed by the labor, followed by the panels (unless they got ripped off, which happens).

Even with the higher import taxes, the panels themselves are much cheaper than they were 4 years ago. With Lithium battery systems pricing dropping as fast as it is, we can probably expect Li batteries to hit $160 per KWh soon.

All this and a hot market for microgrids could also affect the labor market - or indeed companies that want to offer this to neighborhoods for sub $1MM with 100K residents may soon take off.

We can imagine a future without large companies that operate high voltage transmission lines.