mxp
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Re: Official California PG&E Thread

Wed Jun 29, 2011 10:04 pm

gascant wrote:I got my first month of E9A bill--about $43 to go 1500 miles. Nearly all charging done at off-peak times. Not bad.
I suppose you don't use much electricity betw 2pm - 9pm ?

What kills the E-9A option for me is I have a growing family that consumes electricity heavily from 5pm - 9pm. I need to stay on E-1.

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Spies
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Re: Official California PG&E Thread

Wed Jun 29, 2011 10:29 pm

mxp wrote:I suppose you don't use much electricity betw 2pm - 9pm ?

What kills the E-9A option for me is I have a growing family that consumes electricity heavily from 5pm - 9pm. I need to stay on E-1.
Keep in mind that Peak is only for half the year so E-9A can still cost less than E-1 when computed over a year. Of course it is difficult to calculate without having a history of hourly electricity usage of at least a year and an idea of how much one plans to drive the Leaf over the course of the coming year.
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yogi
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Re: Official California PG&E Thread

Wed Jun 29, 2011 10:34 pm

I m not sure if anybody get to use this excel form where you can input your usage and get comparison for E1( before and after the EV) , E9a and E9b.


http://www.pge.com/includes/docs/word_x ... ulator.xls


The above spreadsheet provided to me by PGE project specialist when I asked for 2nd meter installation.

Thanks
Yogi

rclams
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Re: Official California PG&E Thread

Thu Jun 30, 2011 7:35 am

yogi wrote:I'm not sure if anybody get to use this excel form where you can input your usage and get comparison for E1( before and after the EV) , E9a and E9b.

http://www.pge.com/includes/docs/word_x ... ulator.xls

The above spreadsheet provided to me by PGE project specialist when I asked for 2nd meter installation.
This spreadsheet is essentially worthless if you have a PhotoVoltaic System - your peak kWh usage under E9A could be NEGATIVE for 5 or 6 months of the year, creating "revenue" to offset your off-peak EV charging! Note: you can't actually make money, just reduce your bill towards zero.

I went with E9A since we have 3 kW of PV.

gascant
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Re: Official California PG&E Thread

Thu Jun 30, 2011 8:57 pm

mxp wrote:
gascant wrote:I got my first month of E9A bill--about $43 to go 1500 miles. Nearly all charging done at off-peak times. Not bad.
I suppose you don't use much electricity betw 2pm - 9pm ?

What kills the E-9A option for me is I have a growing family that consumes electricity heavily from 5pm - 9pm. I need to stay on E-1.
My wife likes the house at 78, so on hot days, we'll get AC starting up around 4PM. Can only imagine what it will be like this weekend! At least, most of the time it will be off-peak. We're just making a lifestyle adjustment--weekday laundry before Noon, dishwasher after Midnight. LEAF charging exclusively from 12:10 - 5:00 AM. For us, the 2nd meter might save $60/month if that, so it's a big investment to make for a small savings.
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edatoakrun
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Re: Official California PG&E Thread

Fri Jul 01, 2011 6:57 am

"PG&E’s Smart Grid Vision" has been released.

http://www.pge.com/includes/docs/pdfs/s ... -30-11.pdf

Quite a few references to EV's, but no evidence I can see (from a quick look of the 300 pages) that PG&E comprehends the huge opportunity it has in promoting the conversion of vehicles from petroleum fuels to electricity.

In particular, I have not yet found any reference in this report to public charging infrastructure. PG&E really doesn't seem to understand that the lack of public charging opportunities (and DC charging in particular) in its service area is now the primary limitation on EV sales, as many potential buyers cannot overcome the "Range Anxiety" FUD to understand that an BEV can be their primary vehicle.

Can a "dumb company" implement the "smart grid"?

Edit-IMO, most interesting part of the report is the chart p 116 (pdf p125) giving PG&E's projection of (HEVs/EVs/PEVs?-PG&E uses the terms interchangeably) in its service area:
Between ~220K and ~850K
PEVs by 2020
Middle projection: ~530K
no condition is permanent


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planet4ever
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Re: Official California PG&E Thread

Sat Jul 02, 2011 2:19 am

I assume you do realize you are showing the "summer" rates, May-October. There is no peak time the other half of the year, i.e. all the red hours turn yellow. The real problem I have with E9 is that my solar system peaks well before 1 PM in the summer, despite DST. (Like much of California, our city is laid out parallel to the valley, so "south" is really about 20 degrees east of true south, and that's the way my solar panels face.) I have the E6 rate, with peak starting at 1 PM, not 2 PM as with E9. That's an hour of prime generating time that PG&E would not be paying me peak rates for if I was on E9.

Ray
End of April 2013: Traded my 2011 SL for a 2013 S with charge pkg.

rclams
Posts: 65
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Re: Official California PG&E Thread

Sun Jul 03, 2011 12:29 am

planet4ever wrote:I assume you do realize you are showing the "summer" rates, May-October. There is no peak time the other half of the year, i.e. all the red hours turn yellow.
I assume you know that we have 122 days till we need the Winter chart? :lol:
planet4ever wrote:The real problem I have with E9 is that my solar system peaks well before 1 PM in the summer, despite DST. (Like much of California, our city is laid out parallel to the valley, so "south" is really about 20 degrees east of true south, and that's the way my solar panels face.) I have the E6 rate, with peak starting at 1 PM, not 2 PM as with E9. That's an hour of prime generating time that PG&E would not be paying me peak rates for if I was on E9.
Good point, Ray; PV systems should favor a southwest orientation for TOU rates. Our older 1kW system (circa 2002), installed on the back roof of the house, faces Southeast, but ... our new 2 kW system, installed on the family room addition to the original house faces Southwest. 8-)

We're getting 1 kW or more from 10am-5pm, and our first E9A bill (which was only 7 days) shows:

TOU Period.....kWhr
* peak.............-16
* partial peak..-11
* off peak.........54
Net Billed kWh..27

Current Charge = $ -3.70

So I think for our two person + 1 dog family, E9A + PV + LEAF will work out fine.

But too bad PG&E (my former employer, BTW) can't provide us with a spreadsheet to let us be sure.

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planet4ever
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Re: Official California PG&E Thread

Sun Jul 03, 2011 1:17 pm

rclams wrote:
planet4ever wrote:I assume you do realize you are showing the "summer" rates, May-October. There is no peak time the other half of the year, i.e. all the red hours turn yellow.
I assume you know that we have 122 days till we need the Winter chart? :lol:
Yes, I see your emoticon, but seriously, this is something people need to think about before they switch plans or get a solar system. The time of day differential is really nice for half the year (sell excess power to PG&E during the afternoon at 30 cents/kWh, buy it back for 5 cents/kWh after midnight) but for the other half of the year you only gain 5 cents/kWh.

Ray
End of April 2013: Traded my 2011 SL for a 2013 S with charge pkg.

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