SanDust said:
If you're producing more than you are using between noon and six then it's hard to imagine that the increased rate you get paid for electricity produced during this period won't more than offset the slightly higher premium you pay over the base DR rate.
The only way it wouldn't work out is if we use so much juice at night that it chews up the credit and we end up with net kWh at that rate beyond the tier 1 rate--assuming we'd stayed in tier 1 with the DR rate. Looking back a couple of months, we paid a total rate of $.13863 for tier 1, and that's all we had, 203kWh of which (what's the baseline, 300?). That tier 1 rate is slightly higher than the super off peak rate, but it's lower than the off-peak rate.
Could it happen? Maybe. We run the A/C only in the evening, AKA off-peak. We charge the car at night, and I'd be tempted to run the pool motor (the overwhelming heavyweight when it comes to power consumption) at night.
I also have to admit that most of my prevaricatin' (as Wallace would say to Gromit) was over the DR-SES rates, which are higher overall and less likely to lead to success.
SanDust said:
One thing making this easier is that there is little difference between the "X" rate and EV-TOU-2 so you can actually not even include charging the Leaf when doing the calculations.
Except I have the lower "Y" rate.
SanDust said:
All you have to look at is your household usage.
Gee, that's what I said! And, now that I have the data from EnergyWave, I'm figuring it out; got me a Google Docs spreadsheet that I just need to drop the numbers into as they come available, it'll calculate it out for me and I and compare it with what I've paid. Once the study is over, I'll be ready to pick how I want to go forward.
So far, for the data I have for June, I'd be ahead going with EV-TOU-2. I think. I'm assuming that it contains raw numbers from the house meter, which includes the EV meter; can't imagine it'd be otherwise.
But, then again the numbers I have so far don't include any LEAF charges--it only goes up to 6/14, just before we got the car. Odd that it's so far behind.