Deleted member 459
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- Joined
- Jun 27, 2010
- Messages
- 6
planet4ever,
Thanks for those numbers, they're well crunched. Not having empirical kWh measurements in hand (yet!) I was working backwards from the worst case; what if you were to deep cycle the car (or two) on a daily basis? (Not a good idea in terms of practice I know, but it works to stress-test the concept. Imagine if we were talking about Tesla Roadsters here with their ginormous 56 kWh packs.) It still strikes me as being miserly of PG&E to even bother with high tiered rates during off-peak graveyard usage considering it's mostly energy that's would otherwise go to waste.
Just to push the envelope, let's say we were deep-cycling a RAV4EV which, in theory (240V x 30A x 6.5 hrs) = 46.8kWh. And to keep things simple, let's keep reusing those same summer (weekday) rates:
9.75 kWh * $0.05995 = $0.5845 (Tier 1 & 2)
5.25 kWh * $.24907 = $1.3076175 (Tier 3)
31.8 kWh * $0.28907 = $9.192426 (Tier 4 & above)
= $11.0845435/day. Multiply by 30, and you get $332.54/mo for a total range of, let's say, 80*30 = 2400 miles. Or about 13.9 cents/mi.
Then, consider your typical ICE car. 2400 mi / 30MPG = 80 gallons of gas, at $4 = 320. Or about 13.3 cents/mi. Almost the same, innit! I guess I stand convinced - even the worst case won't break the bank. Now, to go recrunch this on E9-A assuming that household usage has eaten up the baseline...
Thanks,
-djh
Thanks for those numbers, they're well crunched. Not having empirical kWh measurements in hand (yet!) I was working backwards from the worst case; what if you were to deep cycle the car (or two) on a daily basis? (Not a good idea in terms of practice I know, but it works to stress-test the concept. Imagine if we were talking about Tesla Roadsters here with their ginormous 56 kWh packs.) It still strikes me as being miserly of PG&E to even bother with high tiered rates during off-peak graveyard usage considering it's mostly energy that's would otherwise go to waste.
Just to push the envelope, let's say we were deep-cycling a RAV4EV which, in theory (240V x 30A x 6.5 hrs) = 46.8kWh. And to keep things simple, let's keep reusing those same summer (weekday) rates:
9.75 kWh * $0.05995 = $0.5845 (Tier 1 & 2)
5.25 kWh * $.24907 = $1.3076175 (Tier 3)
31.8 kWh * $0.28907 = $9.192426 (Tier 4 & above)
= $11.0845435/day. Multiply by 30, and you get $332.54/mo for a total range of, let's say, 80*30 = 2400 miles. Or about 13.9 cents/mi.
Then, consider your typical ICE car. 2400 mi / 30MPG = 80 gallons of gas, at $4 = 320. Or about 13.3 cents/mi. Almost the same, innit! I guess I stand convinced - even the worst case won't break the bank. Now, to go recrunch this on E9-A assuming that household usage has eaten up the baseline...
Thanks,
-djh