Solar Panel Update: Two Years In

November 8, 2026, is the two-year anniversary of my home solar array being activated. Since I gave an update at the one-year anniversary I figured I’d give another one, now that I have a lot more data.

Rather than just post all the same Grafana screenshots I did last year, I decided to turn this year’s update into an interactive feature using my good buddy Claude. I have tons of load/grid data from the array (via Tesla’s Fleet API) and weather data from my home weather station.

Fortunately, in one sense, there’s really not much interesting to report. The system has basically worked fine since I’ve had it installed. However, unfortunately, on March 30, 2026, I got an email from EmPower Solar that they were ending business operations. In the wake of the “One Big Beautiful Bill” act, which ended the federal home solar panel tax credit, this wasn’t a huge surprise, but it was still disappointing, as my warranty is now basically worthless. I guess I can always just hope and pray!

Top level year-over-year comparison is below, or click here to check out the fully vibecoded feature!