How many kilowatts a month does your system produce, and how many panels do you have? Also it would be nice to know your cost per kilowatt. Mine is 300 to 400 kilowatts per month at about $.11 per kilowatt, it varies from .09 to .12.
This isn’t about being smarter than anyone else, this is about making good economic decisions. When a solar system will give me about a 10% return, I plan on purchasing one.
The bit that tracks system performance is down. Exactly how many kWh I generate is unknowable, but from my net metering I know it is close to my total usage rate.
I have panels with 800 Watts peak capacity. Figure I dunno, 5 to 6 kWh per day?
PG&E has a tiered rate structure
They list anywhere from 11.5¢ to 35.8¢ per kWh, and assert the average is 16.5¢
They impose a minimum energy charge 14.7¢/day/meter for the privlege of having a grid connection.
Oh, and any “excess” power I generate is a gift to PG&E. Welcome to Caleeeeeeeforneeeeya...