Re: [RE-wrenches] Back feeding battery inverter with grid-tie inverter

Hi Jeff, This isn't an answer to the questions below, but an alternate suggestion. Apollo Solar has a charge controller which allows for strings of up to 200 VOC (160 volts nominal) and I believe 100 amps. Would this not be a simpler, more efficient system? Just a thought... Daryl DeJoy NABCEP

Re: [RE-wrenches] Back feeding battery inverter with grid-tie inverter

This is not a good combination of equipment choices. If you want a safe and reliable installation it is good practice to use equipment as it is intended to be used. You should not back feed an Xantrex XW through the output side. The easiest way to go is use a Sunny Island with the batteries

Re: [RE-wrenches] Back feeding battery inverter with grid-tie inverter

The best way is to use a SunnyIsland. It's all automatic - no need for dummy loads. Matt T Jeff Yago wrote: I know this subject has come up before, but there have been several different suggested ways to handle the problem and I was hoping for easiest. We install lots of both on grid and off

Re: [RE-wrenches] Back feeding battery inverter withgrid-tie inverter

Unfortunately this is rather expensive way to go. Need e SMA SI for 240 vts + a SMA Wboy for the turbine. Please send SMA request for a 240 volt version of the island that will support their inverters. I have figures ~ 9K for this type of set up. Sent via BlackBerry by AT&T -Original Messag

Re: [RE-wrenches] Back feeding battery inverter with grid-tie inverter

Also Robin at Midnight Solar has been promising to come out with a higher VOC charge controller too. How about it Robin? I'll be needed one for this spring for use at our Design and Training Center for use in a class. Be happy to do some Beta testing for you. Chris Schaefer Solar and Wind FX Inc.

Re: [RE-wrenches] Back feeding battery inverter with grid-tie inverter

Hi Jeff, 1. if the distances are really far why not run the DC from the panels to the inverter, higher voltage, smaller wire. 2. if you use the XW then yes you will be running the AC from the SB to the sub panel, this will feed the inverter and cause it to charge, which you will need to put

[RE-wrenches] Mobile Solar power Center

We are designing a "Mobile Solar Power Center" to power Eco-Events and the like in Southern California. We will have 1,600 Wp of solar panels, 6 kWh of 24 V AGM battery backup and a 1kW / 120 VAC inverter. I am designing the system from scratch, and I wondered if anyone else out there has put toget

Re: [RE-wrenches] Mobile Solar power Center

Peter- We've done many such events over the years. I'd go with a 110 amp class T fuse, available from most RE distributors. While it's larger than you need, it will still protect against shorts. Proper wire sizing will take care of over-current. Feel free to give me a call with any specifi

Re: [RE-wrenches] Back feeding battery inverter with grid-tie inverter

Chris Schaefer wrote: Also Robin at Midnight Solar has been promising to come out with a higher VOC charge controller too. How about it Robin? I'll be needed one for this spring for use at our Design and Training Center for use in a class. Be happy to do some Beta testing for you. Chris Schaefer

Re: [RE-wrenches] XW / Wind problem to be fixed by firmware update

Hi Matt, This setup just had a diversion load that kicked in at a high voltage - some kind charge controller that regulated the battery V likely would stabilize the system. The XW max sell amps is configurable, and turning that down can help in a situation like this too. Mark

Re: [RE-wrenches] Mobile Solar power Center

I did a large service job on a mobile stage/ solar power system trailer. I can tell you lots of things _not_ to do. solid wire. vented inverter where truck spray gets in, no grommets where power cables go thru AL plating, etc. It's a little bigger than what you're proposing. 1.8Kw of unisol

[RE-wrenches] LED Lighting Package Request

Wrenches, We have been asked to provide two stand-alone lighting packages for community mailboxes. Each is a set of the modern mailboxes on posts. For each I want to use LED fixtures as part of a package system, self-contained, and also mounted on a post. We have done this a couple of times before

Re: [RE-wrenches] Back feeding battery inverter with grid-tie inverter

I was excited about using a new Apollo controller. Did they ever come up with a listed GFI/breaker setup for that high of a voltage? Doug Wells The Solar Specialists Worcester, VT 05682 (p) 802-223-7014 (c) 802-498-5856 www.thesolarspecialists.com __

Re: [RE-wrenches] Mobile Solar power Center

Hi Peter, Curious about why such a small inverter and also why you are not going with breakers? jay peltz power On Jan 19, 2009, at 8:49 AM, Peter Parrish wrote: We are designing a "Mobile Solar Power Center" to power Eco-Events and the like in Southern California. We will have 1,600 Wp o

Re: [RE-wrenches] Mobile Solar power Center

This must be the season (year?) for solar trailers. I've provided solar power for soundstages in the Dallas/Fort Worth area for nearly 10 years with a very manually assembled set of PV, batteries, and inverters (think "erector set"). I'm doing major upgrades to system this year, making everythi

Re: [RE-wrenches] Mobile Solar power Center

Because I don't know any better. - Peter Peter T. Parrish, Ph.D., President California Solar Engineering, Inc. 820 Cynthia Ave., Los Angeles, CA 90065 Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885 CA Lic. 854779, NABCEP Cert. 031806-26 peter.parr...@calsolareng.com -Original Messag

Re: [RE-wrenches] Mobile Solar power Center

Peter: I have built several of these portable display units. Allow me to free associate some issues: 1. Who will deploy unit? Our trailer has been damaged more than once due to improper hitching, towing, backing, and mis-handling. If you are at every event, then no problem, but it ties up

Re: [RE-wrenches] Mobile Solar power Center

Hi Peter. I have been involved with powering many community events with both off-grid and guerrilla intertie systems. For most events, the PV array did not add much energy, at least compared to the size of the load. The array is mostly feel-good, but with portable units can be used to recharge

Re: [RE-wrenches] Mobile Solar power Center

Peter, You might make sure that the inverter you choose has a built in charger as well. I'm not sure the smaller ProSine does; we've never used them. But you need the ability to backup charge from the grid for Sunday morning after the long Saturday night concert. I would look at Outback's sealed F

Re: [RE-wrenches] Mobile Solar power Center

Peter, We use ANL type fuses (see here) in mobile applications for circuits like converters, generator starters and other heavy distribution circuits up to 300 amp. For large inverters with 2/0 and above cable we recommend Class T fusing. The Prosine 1000 should be protected with a 150 am

[RE-wrenches] Feedback on Sunny Web Box and Sunny Portal

Wrenches, ?? I am looking into using the Sunny Web Box and Sunny Portal on some new installations and possibly adding to some older ones.? What experiences have you had with this system?? We are being asked by a large potential customer for our experience with the data system we are quoting.?

Re: [RE-wrenches] Feedback on Sunny Web Box and Sunny Portal

Pretty straightforward hardware setup. Easy to install the piggy back board. Data comm. Wiring is also easy if you pay attention to detail. The portal is a little 'foreign', but can be made to display good stuff. You decide what graphs or pictures to display on pages you create, or use the

[RE-wrenches] Sunny Beam

Hola, Anyone see hide nor hare of the long-awaited SMA Sunny Beam Bluetooth monitor? marco Marco Mangelsdorf, Ph.D., President Electrical Contractor License C-26351 69 Railroad Avenue, Suite A-7 Hilo, Hawaii 96720 USA (808) 969-3281, fax 934-7462 www.provisiontechnologies.com

Re: [RE-wrenches] Feedback on Sunny Web Box and Sunny Portal

Hi John, We've installed several systems with the Webbox as the primary DAS. Works like a charm - customer's like them cause they can program their own website pages. We like them cause they send us an email each night on system performance and monthly summaries (or whatever else you program

Re: [RE-wrenches] Sunny Beam

I was told sometime this summer before they let it out and then I heard from a co-worker it was to be this spring. In other words it's anybodies guess. On Mon, Jan 19, 2009 at 3:05 PM, Marco wrote: > Hola, > > Anyone see hide nor hare of the long-awaited SMA Sunny Beam Bluetooth > monitor? > > m

Re: [RE-wrenches] LED Lighting Package Request

Carmanah seems to have a lot of interesting products along these lines. http://www.carmanah.com/ -Glenn From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Allan Sindelar Sent: Monday, January 19, 2009 1:42 PM To: RE Wrenches S

Re: [RE-wrenches] Sunny Beam

I spoke with SMA tech support about this last week and was told April, but even they did not have much information on the new unit yet. -Glenn -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Marco Sent: Mon

Re: [RE-wrenches] Feedback on Sunny Web Box and Sunny Portal

John, If you have multiple inverters at the same site these can be daisy chained together on the WebBox so that all report and are summarized on the same portal page. Wiring diagrams for this configuration are absent the SMA documentation but the SMA support guys for this product are helpful and

[RE-wrenches] Favorite Flat Roof Mounting System?

I have some experience with DP&W and UniRac Flat Roof mounting systems. I'd be interested to here what your most and least favorite systems are and why. Thanks Carl ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.o

Re: [RE-wrenches] Feedback on Sunny Web Box and Sunny Portal

We've used a couple. The public access feature is nice. Might require someone with computer experience to set up the local network protocols properly for internet access. Sky Sims Ecological Systems http://www.ecologicalsystems.biz 220 County Road 522 Manalapan, NJ 07726 732-462-3858 tol

Re: [RE-wrenches] Feedback on Sunny Web Box and Sunny Portal

John - The hardware is fairly easy to install but requires attention to detail. The user interface is very customizable if you have techie clients. One thing to note is that the online data is not live - it tends to lag by a few hours. You can login directly on site to get live data however. An

Re: [RE-wrenches] Mobile Solar power Center

- Original Message - From: "Peter Parrish" > inverter I'll be using (Xantrex Prosine 1000). Does anyone have a source for I put a Prosine 2500 w/charger in a same purpose trailer 10 years ago and it worked great for a year and a half and at one event on the beachfront I showed up, fired

[RE-wrenches] BP Solar Module Warranty Claim

Wrenches, Who is the contact person at BP Solar for module warranty claims? Thanks in advance for your help. Joel Davidson ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re

Re: [RE-wrenches] Favorite Flat Roof Mounting System?

I second the DPW tilt rack. Versatile an I felt like it was sturdy. Jason Lombard CSBA Open Hand Solar 505 795 8646 On Jan 19, 2009, at 4:57 PM, "Carl Adams" wrote: I have some experience with DP&W and UniRac Flat Roof mounting systems. I'd be interested to here what your most and least

Re: [RE-wrenches] Back feeding battery inverter withgrid-tie inverter

Yes, it is expensive. On the other hand, it does work! SMA seems remarkably free of glitches and the need to download the latest version of the software - if you know what I mean. ;-) Matt t...@hughes.net wrote: > Unfortunately this is rather expensive way to go. Need e SMA SI for 240 vts

Re: [RE-wrenches] wrenches] NABCEP Test: Codebook or Handbook?

Thanks for the replies, guys. I talked with the NABCEP office, and after being put on hold a few times to seek the answer, I got a hesitant reply that the handbook is provided, not the codebook, contrary to Dave's reply. Anyone who took the exam in September or last March want to weigh in? Also, I

Re: [RE-wrenches] [SPAM] Re: wrenches] NABCEP Test: Codebook or Handbook?

Hi Mike, I took the Solar Thermal exam in September, and the guys on the other side of the room taking the PV exam were given codebooks. We certainly had just the code books back in the fall of '04 when I took the PV exam. But perhaps something has changed very recently? Best, Louis Woofe