Average 50kWh/day.
Energy company supposedly allows grid tied/net metering system to be 120% of yearly consumption, up to 20,000kWh. I have been emailing them for months, as they have no phone number for their Solar department, to nail down how big a system I am allowed. No responses. So I guess I might under size it a bit, then if needed, add panels after the inspection…
Almost 20 years ago, CEC rebate allowed up to 200% of consumption, which I documented with one month's electric bill.
(Left my pool pump running 24/7 for a month straight to help document my consumption.)
Back then, PG&E limit was 10kW, maybe larger with additional review.
Today, 30kW and additional review for larger.
Somewhere I have read up to 5kW doesn't require documentation of consumption, because that is typical for a residence.
Many more pages on the topic now. Here's one:
"Two hundred thousand dollars ($200,000) for each occurrence if the Gross Nameplate Rating of the Generating Facility is ten (10) kW or less and the Generating Facility is connected to an account receiving residential service from PG&E."
Also something about "waive" and "self-insure"
Assuming 5 hours average full sun, you might want 10kW of PV. (more in summer and less in winter of course.)
Assuming 5.5 hours, 10kW would give average 55kWh. 55kWh x 365 = 20,075 kWh/year
If you later over-panel with multiple PV orientations, might produce 1.4 times that much without clipping at peak.
It will be nice to have enough power for off-grid operation of A/C during power failures. Unless you have a large battery bank to save morning production for afternoon cooling, want enough PV generation to run the air conditioner. My house and central A/C aren't so large.
