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mwalsh
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Re: Official Southern California Edison thread

Mon Jul 12, 2010 5:52 am

I get what you guys are saying. The reason I put down everything I generated, and then started deducting, is that it just made it easier to work out. But regarding the reimbursement amounts.....Planet4ever nailed it. I was just talking about a specific time period applicable to my generation/usage - I would hope that the generation rates during that same period would be the same as if I were using from the grid instead.

What I think Boomer23 confuses is my desire for this with the desire to get paid for any excess generation at the end of the year. I realize that the PUC has not yet decided what they are going to have the utility reimburse us for that.

However, Boomer23, you encourage me with your comments on your system generation from summer last year. JimmyDreams does live in Oceanside, so who knows how more often he's "socked in" while we already have full sunshine!

I have a good portion of south facing roof and, depending which panels we're going to use, they may all fit on the south or I may have to put a few facing east. My vendor has given me a chart talking about just over 800kwH in the months of May, July, and August, then just under 800kwH in June (June gloom?). This is with 20 panels facing south and 4 facing east.

Even if we are able to go all to the south with the alternate, slightly skinnier, panels, I don't think it would make much difference from a generation standpoint since they are 230w vs. the 240w of the larger ones.

But, anyway, if I have underestimated my production, I think I'd rather have it that way than to overestimate and be disappointed when the numbers start coming in.
Last edited by mwalsh on Mon Jul 12, 2010 11:59 am, edited 1 time in total.
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Jimmydreams
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Re: Official Southern California Edison thread

Mon Jul 12, 2010 8:24 am

mwalsh wrote:However, Boomer23, you encourage me with your comments on your system generation from summer last year. JimmyDreams does live in Oceanside, so who knows how more often he's "socked in" while we already have full sunshine!

I have a good portion of south facing roof and, depending which panels we're going to use, they may all fit on the south or I may have to put a few facing east. My vendor has given me a chart talking about just over 800kwH in the months of May, July, and August, then just under 800kwH in June (June gloom?). This is with 20 panels facing south and 4 facing east.



I get socked in by the marine layer a lot. This year, June and July have sucked!! :evil:

I have 30 225watt panels on a south/southeast facing roof. My monthly generation is:

2009
Apr: 1131kWh
May: 949 kWh
June: 1018kWh

2010
Apr: 1117kWh
May: 1204kWh
June: 920kWh

Keep in mind that MOST solar installers will UNDERESTIMATE production in order to have happy customers. Mine did. A friend from work who went with another company did. Yours may very well be doing the same. Plus, also keep in mind that the panels will slowly reduce their output by as much as 20% over 25 years. Not a lot, but if you're planning on keeping the Leaf long term, it might weigh a little on your calculations.

BUT...the sun is out today and I've already generated almost 2kWh and it's only 8:30am. :mrgreen:
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mwalsh
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Re: Official Southern California Edison thread

Mon Jul 12, 2010 9:46 am

Jimmydreams wrote:BUT...the sun is out today and I've already generated almost 2kWh and it's only 8:30am. :mrgreen:


Nice!
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Boomer23
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Re: Official Southern California Edison thread

Mon Jul 12, 2010 10:55 am

My figures for comparison:

2009
April 807 kWh
May 791 kWh
June 724 kWh
July 867 kWh
Aug 764 kWh
Sept 732 kWh

2010
April 825 kWh
May 905 kWh (record high month for 3 years history)
June 804 kWh
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mwalsh
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Re: Official Southern California Edison thread

Mon Jul 12, 2010 11:59 am

I'm liking those figures from both you guys. The quote my guy gave me for a 5.04kwH system estimated 750kwH in May, 740kwH in June, and 760kwH in July and August. That would be with 21 x 240w panels mounted on the south facing roof.
2011 Blue Ocean SL with 77,000 miles
2015 pack on 12/30/15
Tinted windows
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L1 EVSE upgrade
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drees
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Re: Official Southern California Edison thread

Mon Jul 12, 2010 12:22 pm

Here's my generation details since installation and commission in March:

April: 539
May: 605
June: 525

Looks pretty similar to the rest of you guys in So Cal for 2010. So far July has been down a LOT thanks to 5 days of very little to no sun, but today has been nice and sunny once the marine layer burned off 9-10am.
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Boomer23
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Re: Official Southern California Edison thread

Fri Aug 13, 2010 8:16 pm

I spoke with someone at SCE's EV line today about adding a TOU meter as a second meter for my EVSE circuit. I was wondering if there is any installation charge or any monthly charge for the second meter. She said that there is no meter installation charge and they "got rid of" the monthly meter charge as well.

She gave me some charges per kWh for the TOU-EV plans for whole house and for just charging the EV, but those rates differed from the ones mwalsh posted above. The super-off peak rate for the TOU-EV plan was $0.14 and the off-peak rate for the whole house TOU-EV plan was $0.11.

My dilemma is that I may have to pay up to $3,000 to upgrade my old crowded 100 amp main panel. But it may be possible to avoid doing any work on my main panel and just run my EVSE wiring from the second TOU meter. But to decide on what to do, I need accurate rate numbers for the on peak as well as off peak and super off peak times.

It will probably work out that the TOU-EV rates may not be the lowest for me, but the difference will be less expensive than paying $3,000 for a main panel upgrade.

mwalsh, did you get your rate numbers from the SCE web site or did they supply you the rates in a more comprehensible form? Their documents are confusing and seem to require adding certain columns together.
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smkettner
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Re: Official Southern California Edison thread

Fri Aug 13, 2010 8:40 pm

I would trust what is written on the website. Although it is a difficult read the first time.

I assume you have the ling to the rates? http://www.sce.com/PowerandEnvironment/PEV/rate-charging-options.htm
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mwalsh
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Re: Official Southern California Edison thread

Fri Aug 13, 2010 8:47 pm

Boomer23 wrote:mwalsh, did you get your rate numbers from the SCE web site or did they supply you the rates in a more comprehensible form? Their documents are confusing and seem to require adding certain columns together.



My rates were from the SCE website. But you're right about them being confusing....my solar guy had to show me how to read them.
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Boomer23
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Re: Official Southern California Edison thread

Fri Aug 13, 2010 9:12 pm

Thanks guys. I'll have to call them next week and have the rate pages up on my computer and have them help me read them properly.
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