[RE-wrenches] Hardware request

2009-03-26 Thread Allan Sindelar
Wrenches, We have an unusual roof application. It’s for a roof-mount array on a commuter rail station canopy in Santa Fe. The roof is made up of a coated corrugated steel top layer, in the shape of a series of sine waves, over roofing felt, 5/8” plywood sheathing, and a corrugated metal base calle

Re: [RE-wrenches] MPPT greater than 150V

2009-03-26 Thread Christopher Freitas
OutBack has also been working on higher voltage MPPTs as well but we have chosen to not hype unfinished/unreleased new products (i.e. vaporware). Expect to see a new OutBack MPPT controller with many advanced features and new capabilities later this year - including higher input PV voltages. J

[RE-wrenches] Odd Outback FNDC/Mate issue

2009-03-26 Thread Howie Michaelson
Hi All, Caution: this is a longish tale about a problem with Outback's FNDC monitor, as well as a request for any other related stories. Sorry for the long post - sharing this here is somewhat therapeutic for me, so if you want to cut to the chase, it is toward the bottom: About a year ago I ins

Re: [RE-wrenches] MPPT greater than 150V

2009-03-26 Thread Darryl Thayer
Per the posts Midnight solar and Apollo Solar are both in beta testing. Has anyone heard Outback must be also? Is Outback going to announce a HVCC this spring? --- On Thu, 3/26/09, Tump wrote: > From: Tump > Subject: Re: [RE-wrenches] MPPT greater than 150V > To: "'RE-wrenches'" > Date:

Re: [RE-wrenches] Battery based grid tie question.

2009-03-26 Thread Michael Welch
William Miller wrote at 06:32 PM 3/26/2009: >Michael: > >The SW inverters were first approved for grid-tie as originally designed. >Then the CEC pulled the listing because re-testing revealed some borderline >results. It was rumored that the only competing grid-tie company at the time >ble

Re: [RE-wrenches] MPPT greater than 150V

2009-03-26 Thread Matt Tritt
Bob? RU there??? Matt r...@solar4maine.com wrote: Midnite solar has 2 beta units rated for 250 volt running out there. One is running on 12 kc130's in series and the other is running 10 solar world 24 volt panels 5 in series so 2 strings of 5. They will be installing a 250 volt

Re: [RE-wrenches] MPPT greater than 150V

2009-03-26 Thread penobscotsolar
I am waiting to receive a beta model from Apollo Solar and will be putting 10 AP-120 modules in series on it. The Beta testing will be easy with full internet interface standard with the controller, Apollo will be able to monitor it with no work on my part. Daryl > Midnite solar has 2 beta unit

Re: [RE-wrenches] Battery based grid tie question.

2009-03-26 Thread William Miller
Michael: The SW inverters were first approved for grid-tie as originally designed. Then the CEC pulled the listing because re-testing revealed some borderline results. It was rumored that the only competing grid-tie company at the time blew the whistle. It was a big deal at the time with m

Re: [RE-wrenches] Battery based grid tie question.

2009-03-26 Thread Tump
nothing to be sorry about .I was NOT suggesting DOING anything illegal. -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Allan Sindelar Sent: Thursday, March 26, 2009 6:28 PM To: 'RE-wrenches' Subject: Re: [

Re: [RE-wrenches] MPPT greater than 150V

2009-03-26 Thread Tump
I certainly am aware of the things both bob & robin, mary & crew have made in the industry. THANK YOU MIDNITE! I too am glad that they have some "working" units out there. I have voiced my frustrations to the Midnite folks & knowing robin & mary personally I'm certain that my comments will not be t

[RE-wrenches] Battery impedance analyzers

2009-03-26 Thread Larry Crutcher, Starlight Solar
Hello Wrenches, Is anyone using an impedance type battery analyzer for lead acid batteries? If so, what do you have and how has it worked out. I have seen prices from $200 to $7500 and I'm sure there is a world of difference. I have been using a pulser circuit I built about 4 years ago to

[RE-wrenches] MPPT greater than 150V

2009-03-26 Thread ryan
Midnite solar has 2 beta units rated for 250 volt running out there. One is running on 12 kc130's in series and the other is running 10 solar world 24 volt panels 5 in series so 2 strings of 5. They will be installing a 250 volt unit on a wind turbine this weekend. They have a bunch of the 150

[RE-wrenches] Keeping track of PV equipment failures

2009-03-26 Thread Matt Lafferty
Hi All, Bob-O's point about collecting product failure experience is well taken. Something I think we all are concerned about, regardless of brand, technology, etc. Timing is good, too. I just finished putting together a non-scientific survey form to gather info on PV Equipment failures over time

Re: [RE-wrenches] Battery based grid tie question.

2009-03-26 Thread Allan Sindelar
Sorry, Tump, The SW lost its UL listing for Rev. 4.01 software around 2000. The GTI, used with Rev. 4.10 was relisted for grid-interactive use. At least in our area, GT systems with pre-GTI SW's were allowed to remain in service, as they were grandfathered in. However, no pre-GTI SW can be used in

Re: [RE-wrenches] MTBF

2009-03-26 Thread Glenn Burt
All, MTBF is and has been a valid measurement in the electric/electronics manufacturing world for many years, used by all manufacturers. I have not looked, but I suspect all inverter manufacturers could give an equivalent number for their products. It is not something new or whiz-bang. However

[RE-wrenches] MTBF

2009-03-26 Thread Marv Dargatz
All, Mean Time Between Failure (MTBF) is a statistical number that is based on failure rates of components in a piece of equipment, under specific operating conditions. Numerical analysis, with testing and historical data, results in this calculated number. MTBF can be applied to a number of

Re: [RE-wrenches] Battery based grid tie question.

2009-03-26 Thread Michael Welch
Hi William. The SW's own roadblock got removed many years ago. I got PG&E to approve SW serial number 00011 (as I recall) for an installation in Arcata in a non-net-billing intertie. This was brand new to them, and as far as I know the only other SWs running in CA were off-grid betas, and one gu

Re: [RE-wrenches] Battery based grid tie question.

2009-03-26 Thread The Office of Tom Duffy
Hi Drake We sell the SW used all the time for $1500 Tom Real People Not "Buy It" Buttons Tom Duffy Systems Design Engineer The Solar Biz HC 61 Box 184 Glenwood, New Mexico 88039 t...@thesolar.biz 575-539-2111 -Original Message- From

Re: [RE-wrenches] MTBF

2009-03-26 Thread Bob-O Schultze
Oops! Typo. Should have been 100 years MTBF. As if Bob-O On Mar 26, 2009, at 8:11 AM, Bob-O Schultze wrote: Holt and All, this is one of those places where this forum can save everyone a lot of grief. When a potentially game-changing product like the Enphase comes out with an obvious Mark

Re: [RE-wrenches] MPPT greater than 150V

2009-03-26 Thread Darryl Thayer
HI all Apollo Solar is also developing and testing a high voltage charge controller. It is in Beta test, I am a Beta test site. I do not know anything about expected release date, or other such issues. Darryl --- On Thu, 3/26/09, Jennifer Bryce wrote: > From: Jennifer Bryce > Subject:

Re: [RE-wrenches] Battery based grid tie question.

2009-03-26 Thread William Miller
Ken: I guess I'm overly optimistic in hoping that electrical engineers could understand these concepts. Next time I'm sending in a modified drawing without the genset. William At 04:47 AM 3/26/2009, you wrote: Morning William, As for 2, from our experience with the local IOU, be carefu

Re: [RE-wrenches] MTBF

2009-03-26 Thread Bob-O Schultze
Holt and All, this is one of those places where this forum can save everyone a lot of grief. When a potentially game-changing product like the Enphase comes out with an obvious Marketing BS statement like 10 years MTBF, we all need to share out experiences with the product. Got failures? H

[RE-wrenches] MTBF

2009-03-26 Thread holtek
I am working on a residential project that seems perfect for the Enphase product (long array to interconnect point run). Researching the product, I came across one of their website videos (nicely done) claiming an "MTBF of 119 years" without any explanation as to what that actually means - that

Re: [RE-wrenches] Battery based grid tie question.

2009-03-26 Thread Drake Chamberlin
That is a good question. What are they worth used? At 09:11 AM 3/26/2009, you wrote: What kind of money are you geting for SW's on e bay? Drake Chamberlin Athens Electric OH License 44810 CO License 3773 740-448-7328 740-856-9648 ___ List spons

Re: [RE-wrenches] Battery based grid tie question.

2009-03-26 Thread robert ellison
Sorry, list. That was supposed to go to Ryan alone, not all of you. Bob On Thu, Mar 26, 2009 at 10:11 AM, robert ellison wrote: > What kind of money are you geting for SW's on e bay? Don't say green, > either.. > > Thanks, > Bob > > On Wed, Mar 25, 2009 at 7:29 PM, wrote: > >> Another goo

Re: [RE-wrenches] Battery based grid tie question.

2009-03-26 Thread robert ellison
What kind of money are you geting for SW's on e bay? Don't say green, either.. Thanks, Bob On Wed, Mar 25, 2009 at 7:29 PM, wrote: > Another good option is the xantrex XW it has 2 inputs one for the grid > and one for the Generator then you can sell the sw's. we have had good > succes on e

Re: [RE-wrenches] Battery based grid tie question.

2009-03-26 Thread robert ellison
The SW's are real early in the process and we doubt the 65% or so efficiency makes sense especially with the battery losses in the process. The other dealer told me the GTI's were not available anyway, but I haven't checked. He was looking for the interface relay when I came into this process. Whe

[RE-wrenches] Whisper manual needed

2009-03-26 Thread robert ellison
Does anyone have a manual for a Whisper 1500 HVLV windmill. Eliot's design, not an SWWP design. I can find all my manuals but that one. If it is downloadable that works also. Need the rewire info to test the clipper when it gets here. Thanks, Bob ___ L

Re: [RE-wrenches] MPPT greater than 150V

2009-03-26 Thread Jennifer Bryce
" Zzzz"? In Midnites defense, I can tell you mine works great! Good products take a long time to make sure that YOU do not end up as the Beta tester. (The most common way for RE gear manufacturers to refine products) It is a double edged sword, we beat the manufactures up for not delive

Re: [RE-wrenches] MPPT greater than 150V

2009-03-26 Thread robert ellison
The difference is the "standard" unit will have some features the other available units on the market do not have. Otherwise what is the sense in making one? Can't wait for the Wind mppt unit. Sometimes we forget how far boB's designs have brought us. I was at one of my original MX-60 installs th

Re: [RE-wrenches] Solyndra

2009-03-26 Thread Geoff Greenfield
Hi Keith-  check the archives... there was some chatter on this a few months back, and the biggest concern was their "racking" system and wrench concerns about what a nice kite it could make.  Other than that I echo Bill's concerns about longevity. This type of innovation is part of what m

Re: [RE-wrenches] MPPT greater than 150V

2009-03-26 Thread Tump
Zzzz We've been waiting for a HI voltage CC! A standard unit? Yeah and. -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of r...@solar4maine.com Sent: Thursday, March 26, 2009 6:46 AM To: re-wrenches@li

Re: [RE-wrenches] Battery based grid tie question.

2009-03-26 Thread Ken Schaal
Morning William, regarding 1-- Don't know what your net-metering application form requires, but in VA the installing company has to certify/ sign off on the equipment meeting 1741. Years ago, after y2k, we had a Co-op so eager to show their support for net metering, that their people , after i

[RE-wrenches] MPPT greater than 150V

2009-03-26 Thread ryan
Midnites Classic CC is close they are beta testing there high voltage unit. I am actually beta testing there standard voltage unit. boB is working very hard on these and i suspect we will see them soon. There is a long list of features packed into this little unit. I will let boB or Robin fill

Re: [RE-wrenches] MPPT greater than 150V

2009-03-26 Thread Tump
Sad to say but isn't this the industry norm we will have it next month. I believe that a HV CC has been in the works for well over 3 years.Welcome to the world of ever changing solarkinda like molasses in the winter time. we have at least 3 scenarios currently which could benefit from the

Re: [RE-wrenches] Solyndra

2009-03-26 Thread Keith Cronin
William I appreciate the sentiment. To understand the genesis of the query, we must look to the analogousness of watching Sunday nights 60 Minutes TV program. Every week, for years, there are commercials on relating to all sorts of pharmacology which inspires an individual to ask their doctor (

Re: [RE-wrenches] Battery based grid tie question.

2009-03-26 Thread William Miller
Colleagues: Interesting that this topic comes up at this time: 1. We inherited a grid-tie project wherein an elderly client was sold an SW installation some years ago. Come to find out, the installer never filed anything with the utility. The client was caught recently back-feeding without