It’s good even if you don’t do batteries. For one, get a large electric hot water heater. That’s effectively storage for a lot of the energy you’ll take in. If you play it right, you may never heat water off grid power, saving you a lot.
Plus you can sell your excess to the grid during the day and pull in grid power at night. It should even out to an extremely low electricity bill every month.
Sounds good, but the electrical control systems to do that without screwing up the grid are expensive. When you factor that in, you are way higher than $1/watt.
I don't see too many people putting solar panels (the last energy fad) on their houses any more. However, go ahead, I'll watch with interest, and join in when and if it's proven.