Eversource is my utility. I just got my first SMART payout which was for December and January. My SMART application was started in July 2020, and initial application approved in August. My system was installed in October, and PTO in December. I got final "claim" approval in January. I have a 12.24kW 36 panel system with 3 powerwallls. My first payment was at a rate of 13.75cents/kWh. I believe that the initial application date locks in the tier block.