Tesla Solar: System Review and Updates

January 2021 is almost over.Two more days to go...how will we perform against our predictive PVWatts model?  Lower, higher, on targer? We have to wait and find out! Its been a mix of sun , clouds, and a few snow days. In the mean time, I can say output is clearly rising on full sun days. Peak output time is about 1130am now. Outputs are now sustaining 3.3-3.5 kw for an extended time. I have noticed shorter surges to 3.7-3.8 kw. Here is the best day of the month so far, 21.4 kwh.  On this day, our predicted solar AC output was 3.04 kw at 11am. We were doing a steady 3.4 kw though. That's 11.8% higher than expected  Maybe Tesla Solar hooked me up a good production lot! Lets see sunday night if we are close to the 420 kwh target. Well still a positive recommendation for Tesla solar in thebDenver area. Use my referral link to receive 1,000 free Supercharger miles with the purchase and delivery of a new Tesla car, or earn a $100 award after system activation by purchasing or

We saw how the Tesla planned output compares to our own prediction using PVWatts. That is all theoretical. Time for a reality check...how does actual output compare to what is expected from the system?  Recall, you can extract a daily and hourly breakdown from PVWatts for the entire calender year....And, you can extract the actual system output from the Tesla app. It records about every 15 minutes. Lets see what we get: Here is my system output on Dec 9, 2020. It was about as sunny as you can get all day in the Denver area. So a best cast scenario. We made 19.3 kwh of energy that day. If you download the data into the csv file, you can get the time stamped output. It's in 24-hr format. Here I highlighted two random times: 1045m and 230pm (1430 hrs) that corrrspsond to 3.2 kw and 1.6 kw total system output. Other times are shown too. Now, we can take out our PVWatts files. In my case for East and South: - pull the values for the same date and time -add them t