I'm on NEM2.0 so I can generate more than I use at peak hours and push into the grid for higher credit value than I consume overnight to charge my car. Still,

I'm on NEM2.0 so I can generate more than I use at peak hours and push into the grid for higher credit value than I consume overnight to charge my car. Still, I don't see the value proposition for batteries on NEM2. If I wasn't using _any_ electricity at my house, and I could 100% charge the batteries off-peak and push the power back to the grid at peak, I'd only be arbitraging like 5-10c/kWh * 15kWh per pack. So, $1.50 per day, per pack. Unless I'm totally thinking about this wrong. The spread between peak and off-peak rates is just too small.