Just looking back on a system we commissioned in late December 2025. He's used 78kwh (about $10) of electric from the grid since December. That was mostly due to him not running his batteries down below 20% in February. He'll be adding one more 16kwh battery this fall and I think he'll be 100% off grid. Once he gets to next March, he can decide it having the grid as an emergency power source is worth $36 a month.

Adding this... his power company charges him an extra dollar to send a bill in the mail and his minimum bill is $36 a month. So his bill got lost in the mail one month and the next bill showed a late fee and a back balance. So in addition to paying for a meter he's not using, he got a penalty because the bill was lost in the mail.