Just got my true-up bill through February, $1676
Oh, you asked about the LOWEST bill ever.
Most of the past 20 years, true-up has been $zero. One time it was $700.
I'd been noting how much unused credits ($hundreds to low $thousand) were left unused end of the year, so this past year I ran electric heat even during peak times. Also left pool filtering continuously for weeks. By the time I realized I had burned through all surplus and was accruing a bill, it was most of the way through January.
I turned on the gas furnace. Flame came on briefly and went out. Flame sensor wasn't working, and replacing it didn't fix. I minimized use of heat until new control board came in. Had always resisted paying $125 or so for a new board, had been using a second hand replacement for a few years. But being able to heat with gas rather than electric pays for the board in less than a month.
Gas bill was $189. When not using furnace it is $10 for water heater and stove. Years back, I had observed heating with gas cost $80, vs. electric $700; rates are up.
For most of the 20 years I've had grid tied solar, bill has been around $10/month. Only two years did I owe at true-up. Works out to about $20/month on average. Need to be more careful, not aim so close to zero unused credits.
Mild San Jose weather, small house. But not good insulation; temperature drops quick when heater off. There are double-pane windows, but walls and ceiling mostly uninsulated.
That was San Jose. Oakland house (no PV yet), electric was $250 and gas $175. Think the roommates still used electric heaters in their rooms part of the month. It was $410 electric $185 gas previous month, too much electric heat.
www.lmcic.com
