Carl
I have had only one callback out of 3 AZ225s installed.
The E-W gearbox, a sheetmetal design had a weephole that was plugged during
manufacturing. After over 2 years of flawless operation, the trapped
moisture broke down the grease and the gears failed.
Michael at Array Technologies rushed
Hi Bill,
Other than good resolution for a lower range of resistance to ground, are
there any other bells and whistles for a Megger Tester that you'd suggest
or recommend?
Thanks,
Howie
--
Howie Michaelson
NABCEP Certified Solar PV Installer™
Sun Catcher, LLC
Renewable Energy Systems Sales and S
Allan,
Thanks for the update. I will be open to specifying trackers again,
at least for grid tied systems. I appreciate the quantification of
the costs and efficiencies.
Drake
At 01:55 AM 4/14/2009, you wrote:
-Original Message-
It is great to hear that Wrenches are having bett
Are there any real world numbers on percentages of wattage increase due to
reflectance on the backside of Sanyo Bi-facial modules? Specifically - a 6/12
white metal roof @185dg. - horizon to horizon window. Have potential
application for 200kw+ array. Would like to have more than a "we think" nu
Holt -
I don't have data (yet) on systems we've installed but the Sanyo brochure
has a rough chart on the second page which might be worth looking at if you
haven't already:
http://us.sanyo.com/dynamic/product/Downloads/HITDoublebrochure2008-30935473
.pdf
Good luck! -August
August G
We are looking to do our first installation using the Sanyo bi-facial module
and we were wondering if their was an installation guide for this puppy,
especially since the frame appears to be non standard and possibly
anticipates some irregular mounting schemes.
- Peter
Peter T. Parrish, Ph
Hi Wrenches,
I'm shopping for a 72 panel, fixed, ground mount. What are your
favorites for arrays in the 10 KW+ range?
Thanks in advance,
~ Eric
--
---
Eric Hansen, RE System Designer & Installer
Electron Connection, Inc.
Oregon LRT
Would these Ni-Cad batteries require venting like lead-acid batteries
would? The engine generator is 250 kW and the batteries are Nickel-Cadmium
type: ALCAD Cell Type XHP52 (Qty. 20).
--
Best,
Bill Roush
Heartland Solar Energy Industries Association
www.hseia.org
Heartland Renewable Energy Socie
August,
A very annoying aspect of this manufacturer's brochure is that the cute bar
graph has a fairly large error. What the heck does "Daily Average Power
Generation" mean. I think they mean energy. Just a nit-picky pet peeve of
mine that we see too often in the energy world.
The data on t
I hope that this helps, but far form complete: Ni Cd batteries are called
alkaline type, and use a water-alkaline electrolyte. It does not participate
in the reaction like lead acid. If it is water based it will generate H2 and
O2 on charging.
so the out gas is the same as Lead acid,, and
I also have a linksys that works fine on either my Magnum or Vanner inverters.
HOWEVER, I'm in the process of getting wireless out of my house, especially the
router. Driving into town today pushed me over the edge (wife has been hounding
me too) as I listened to my local Public Radio interview
Sanyo will listen to constructive criticism .They learned their lesson the hard
way a few years ago.
See http://www.photon-magazine.com/News/news_02-06_ap_sanyo.htm
- Original Message -
From: Bill Brooks
To: 'RE-wrenches'
Sent: Tuesday, April 14, 2009 2:34 PM
Subject: Re: [RE
Have watched trackers go from crap to fairly solid designs over the last 30
years and had enough bad experience to vow to never sell one again. I have a
very old Wattsun on my home/office that needs repairs about every 12-18 months.
I have found few if any vendors in our industry that offers bet
Bill -
Hehe, good points. I didn't notice the fine print to the right of the chart.
It will be interesting if any wrenches out there are able to obtain actual
side by side data and report back. Otherwise I suppose this is all
speculation.
Best, August
August Goers
Luminalt Energ
Health effect of EMF
See http://www.cdc.gov/niosh/topics/EMF/
- Original Message -
From: Jeff Oldham
To: re-wrenches@lists.re-wrenches.org
Sent: Tuesday, April 14, 2009 3:47 PM
Subject: Re: [RE-wrenches] wireless routers for off grid
I also have a linksys that works fine on
Bill,
I am not going to go off about Sanyo modules, especially the bifacial
brand. However I will say this.
I have installed a lot of residential systems with their panels. I
installed a system at a retired engineers home last summer and he is
keeping very close records of production. We
Doug,
That is why I made the comment that their panels tend to be underrated (a
good and rare thing). One of the reasons is due to the article that Joel
posted a link to earlier (the Japanese govt. hammered them for overrating).
The product has not been on the market (or even in existence) long en
It's just a pity that our solar system only has a single sun. This product
was really built for a 2-sun solar system. It is nice to have a module that
looks good from underneath. That is probably the biggest benefit. To claim
any improvement other than aesthetics is difficult. I have seen data that
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