Re: [RE-wrenches] Wiley Asset
Considering that most of us have been designing and installing solar for a long time, we are all pretty comfortable with the Solar Pathfinder (or even the Solar Site Selector,) and I was resistant to upgrading to the Suneye. However, in recent years, I have moved to the Solmetric Suneye, and I will never go back to the Pathfinder Software for a professional shade analysis. If you like sitting over the Pathfinder with your customer, you will love doing that with the Suneye. The Suneye can take the picture, it will provide you with an exact calculation of the annual, summer, and winter shading factors, with a great capture of the sky at that location. My Suneye paid for itself in the first month, due to all the time I saved over using the Pathfinder software, which requires taking pictures, uploading them, renaming the images, editing them in the software, creating traces, returning to the site when the the camera images are blurry, or the glare is too much to see the shadows, etc. The Solmetric Suneye, will normally see the electric wires overhead, and will add some shading due to it, but it does not effect the shading factors very extensively. The wires can not be added with the Pathfinder Software. I have not tried the Wiley tool, but it sounds like it will have many of the same time consuming issues as the Pathfinder and its software. Keep in mind that if you are trying to locate an array, calculating the exact shading factor while on the roof can be very time consuming with the pathfinder, but is instant with the Suneye. Nick Soleil Project Manager Advanced Alternative Energy Solutions, LLC PO Box 657 Petaluma, CA 94953 Cell: 707-321-2937 Office: 707-789-9537 Fax:707-769-9037 From: R Ray Walters To: RE-wrenches Sent: Wed, September 8, 2010 11:21:07 PM Subject: Re: [RE-wrenches] Wiley Asset The problem with all shading analysis tools I've used, is that they can't take into account the effects partial shading has on string performance. You have to calculate that separately, based on how you'll be wiring the strings. 2nd, I know that usually power lines (if far enough away) won't have much of an effect, as the light refracts around them somewhat, so it doesn't cast a sharp shadow. Same thing with tree branches. This is where it gets tricky, no hard and fast rules that someone can write some software for. It's going to depend on the modules, too. (some have more bypass diodes, etc.) So the best you could do, is test with one module at the installed angle, and shade it with a thin branch or wire at varying distances to see what the effects are. 25 ft I'm not sure, at 50 ft, a power line or small branch is probably OK, and 10 ft. you'll have a problem for sure. Just look at the shadows at the time of day you're worried about, to get some idea. I've often found a very fuzzy, almost indiscernible shadow at a distance that won't hurt performance too much. The shadows seem to get fuzzier at early morning and late afternoon (smog effects?) which helps, too. Basically if some cells are seeing 600 W/m2 while adjacent cells are getting 700 or 800 W/m2, its probably going to be fine. If several cells only get 100 W/m2 (full shading) while the rest get over 700 W/m2, that is going to cause real problems. This would be another use for micro inverters, you won't lose whole strings, and even a partially shaded module will still have some usable output when wired to its own inverter. Personally, though, I usually just relocate the array. R. Walters r...@solarray.com Solar Engineer On Sep 8, 2010, at 11:30 PM, benn kilburn wrote: Thanks for the feed back guys, much appreciated! > > >Now, how would you calculate for power/phone lines running thru the >Pathfinder's >reflection. There are about 6 of them (the largest being at least 1") at >least >25-30 ft away directly east of the proposed array location, and they are >running >straight north-south. On the Pathfinder they run btwn 9 and 11am in June and >btwn 10:30 and 11:30 in December. > > >Would the pathfinder software, suneye or asset pick up on utility lines at >that >distance? How much effect do they have on available sun output? And while i'm >at it, how much do the 'software' tools pick up on the tips of leafless tree >branches at say 25ft, 50ft? > > >i'll try out that spreadsheet idea, nice one! > > >cheers, >benn > >DayStar Renewable Energy Inc. >b...@daystarsolar.ca >780-906-7807 >HAVE A SUNNY DAY > > > > Date: Wed, 8 Sep 2010 20:05:08 -0700 >To: re-wrenches@lists.re-wrenches.org >From: will...@millersolar.com >Subject: Re: [RE-wrenches] Wiley Asset > >Benn: > >A colleague has used the Wiley took and calls it 'marginal.' > >I use the Pathfinder and I like the features Ray described. I wrote a very >simple spreadsheet using the teeny numbers on the month lines to create 100%
Re: [RE-wrenches] Wiley Asset
Benn, At 25 ft a 1-inch power line subtends an angle of 0.2 degree. The sun subtends an angle of 0.5 degree, so the power line will not make a dark shadow on the modules - only 50% of the light can be blocked. Depending on the distance from the module to the wire, along the ray to the sun, the wire will probably block a little less light. But a 50% reduction in the light on a few cells will probably reduce the entire module output by 50%. A shadow every day for the hours you are talking about sounds like a pretty serious issue. Kent Osterberg Blue Mountain Solar benn kilburn wrote: Thanks for the feed back guys, much appreciated! Now, how would you calculate for power/phone lines running thru the Pathfinder's reflection. There are about 6 of them (the largest being at least 1") at least 25-30 ft away directly east of the proposed array location, and they are running straight north-south. On the Pathfinder they run btwn 9 and 11am in June and btwn 10:30 and 11:30 in December. Would the pathfinder software, suneye or asset pick up on utility lines at that distance? How much effect do they have on available sun output? And while i'm at it, how much do the 'software' tools pick up on the tips of leafless tree branches at say 25ft, 50ft? i'll try out that spreadsheet idea, nice one! cheers, benn DayStar Renewable Energy Inc. b...@daystarsolar.ca 780-906-7807 HAVE A SUNNY DAY Date: Wed, 8 Sep 2010 20:05:08 -0700 To: re-wrenches@lists.re-wrenches.org From: will...@millersolar.com Subject: Re: [RE-wrenches] Wiley Asset Benn: A colleague has used the Wiley took and calls it 'marginal.' I use the Pathfinder and I like the features Ray described. I wrote a very simple spreadsheet using the teeny numbers on the month lines to create 100% of any month. I highlight and delete any of the numbers that are shaded and the remainder is the percent of exposure for a given month. You can multiply the output of PV watts or any other production result for a complete production prediction. Easy and free. William Miller At 05:38 PM 9/8/2010, you wrote: I've used the Pathfinder for decades, so I'm partial to them. Great for on-site discussions of shading issues with the customer, as multiple people can see the shading at the same time on the spot. I've also used their Assistant software, and it works pretty well. You take a photo of the actual pathfinder from above, and then download the photo into their software. You can then calculate total annual impact of any shading in Kwh, or percentage of annual production. I've been quite happy with the system, and the price for a Pathfinder, and the software is much less than the Suneye, I believe. R. Walters r...@solarray.com Solar Engineer On Sep 8, 2010, at 3:46 PM, benn kilburn wrote: Wrenches, I'm looking at trying out another 'solar site evaluation tool', the ASSET (Acme Solar Site Evaluation Tool) from Wiley Electronics. I'm looking for feedback on its performance and user-ability. I have been using the pathfinder which is great, but not the pathfinder software. Any comments on the ASSET or Pathfinder software would be greatly appreciated. Cheers, benn DayStar Renewable Energy Inc. b...@daystarsolar.ca 780-906-7807 HAVE A SUNNY DAY ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.445 / Virus Database: 271.1.1/3121 - Release Date: 09/08/10 06:07:00 Please note new e-mail address and domain: William Miller Miller Solar Voice :805-438-5600 email: will...@millersolar.com http://millersolar.com License No. C-10-773985 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/piper
Re: [RE-wrenches] Wiley Asset
Hi Kent: I am sure that aerial wires have very little impact on system outputs. I just checked the Enphase Enlighten data for a system I recently installed, which had a 1-2" to 3/4" wire bundle running just 5' above a solar modules. The wire cast a distinct shadow on the module in question, but upon reviewing the output of that module, compared with all other modules at the same orientation, I have found that there is absolutely no effect on the production. I am surprised that I can not even see any difference. That module has always produced within 99% of the other modules on that roof, and the total output of that module is as high or higher than the other modules! Nick Soleil Project Manager Advanced Alternative Energy Solutions, LLC PO Box 657 Petaluma, CA 94953 Cell: 707-321-2937 Office: 707-789-9537 Fax:707-769-9037 From: Kent Osterberg To: RE-wrenches Sent: Thu, September 9, 2010 9:38:55 AM Subject: Re: [RE-wrenches] Wiley Asset Benn, At 25 ft a 1-inch power line subtends an angle of 0.2 degree. The sun subtends an angle of 0.5 degree, so the power line will not make a dark shadow on the modules - only 50% of the light can be blocked. Depending on the distance from the module to the wire, along the ray to the sun, the wire will probably block a little less light. But a 50% reduction in the light on a few cells will probably reduce the entire module output by 50%. A shadow every day for the hours you are talking about sounds like a pretty serious issue. Kent Osterberg Blue Mountain Solar benn kilburn wrote: Thanks for the feed back guys, much appreciated! > > >Now, how would you calculate for power/phone lines running thru the >Pathfinder's >reflection. There are about 6 of them (the largest being at least 1") at >least >25-30 ft away directly east of the proposed array location, and they are >running >straight north-south. On the Pathfinder they run btwn 9 and 11am in June and >btwn 10:30 and 11:30 in December. > > >Would the pathfinder software, suneye or asset pick up on utility lines at >that >distance? How much effect do they have on available sun output? And while i'm >at it, how much do the 'software' tools pick up on the tips of leafless tree >branches at say 25ft, 50ft? > > >i'll try out that spreadsheet idea, nice one! > > >cheers, >benn > >DayStar Renewable Energy Inc. >b...@daystarsolar.ca >780-906-7807 >HAVE A SUNNY DAY > > > > Date: Wed, 8 Sep 2010 20:05:08 -0700 >To: re-wrenches@lists.re-wrenches.org >From: will...@millersolar.com >Subject: Re: [RE-wrenches] Wiley Asset > >Benn: > >A colleague has used the Wiley took and calls it 'marginal.' > >I use the Pathfinder and I like the features Ray described. I wrote a very >simple spreadsheet using the teeny numbers on the month lines to create 100% >of >any month. I highlight and delete any of the numbers that are shaded and the >remainder is the percent of exposure for a given month. You can multiply the >output of PV watts or any other production result for a complete production >prediction. Easy and free. > >William Miller > > >At 05:38 PM 9/8/2010, you wrote: > >I've used the Pathfinder for decades, so I'm partial to them. Great for >on-site >discussions of shading issues with the customer, as multiple people can see >the >shading at the same time on the spot. >>I've also used their Assistant software, and it works pretty well. You take a >>photo of the actual pathfinder from above, and then download the photo into >>their software. >>You can then calculate total annual impact of any shading in Kwh, or >>percentage >>of annual production. >>I've been quite happy with the system, and the price for a Pathfinder, and >>the >>software is much less than the Suneye, I believe. >> >>R. Walters >>r...@solarray.com >>Solar Engineer >> >> >> >> >>On Sep 8, 2010, at 3:46 PM, benn kilburn wrote: >> >> >>Wrenches, >>> >>>I'm looking at trying out another 'solar site evaluation tool', the ASSET >>>(Acme >>>Solar Site Evaluation Tool) from Wiley Electronics. I'm looking for >>>feedback on >>>its performance and user-ability. >>>I have been using the pathfinder which is great, but not the pathfinder >>>software. >>> >>>Any comments on the ASSET or Pathfinder software would be greatly appreciated. >>> >>>Cheers, >>>benn >>> >>>DayStar Renewable Energy Inc. >>>b...@daystarsolar.ca >>>780-906-7807 >>>HAVE A SUNNY DAY >>> >>>___ >>>List sponsored by Home Power magazine >>> >>>List Address: RE-wrenches@lists.re-wrenches.org >>> >>>Options & settings: >>>http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>>List-Archive: >>http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >>> >>>List rules & etiquette: >>>www.re-wrenches.org/etiquette.htm >>> >>>Check out participant bios: >>>www.members.re-wrenches.org >>> >__
Re: [RE-wrenches] Wiley Asset
Nick, Depending on the hours that the shadow is on the module, that indeed may be the case. I have a similar circumstance with a recent Enphase installation too: the shadow of a triplex service cable about 6 feet away shadows the lower half of the array from sunrise until 7:00 am (in the summer it won't last as long but in the winter it'll last longer). During the time in question, the power output is reduced by nearly 20%, yet the energy output for the day is only reduced by 0.2% because the shadow doesn't last long and it occurs at a time when the power output is low. The effect on energy production depends on how large the shadow is, how long it lasts, and what hours it occurs. Kent Osterberg Blue Mountain Solar Nick Soleil wrote: Hi Kent: I am sure that aerial wires have very little impact on system outputs. I just checked the Enphase Enlighten data for a system I recently installed, which had a 1-2" to 3/4" wire bundle running just 5' above a solar modules. The wire cast a distinct shadow on the module in question, but upon reviewing the output of that module, compared with all other modules at the same orientation, I have found that there is absolutely no effect on the production. I am surprised that I can not even see any difference. That module has always produced within 99% of the other modules on that roof, and the total output of that module is as high or higher than the other modules! Nick Soleil Project Manager Advanced Alternative Energy Solutions, LLC PO Box 657 Petaluma, CA 94953 Cell: 707-321-2937 Office: 707-789-9537 Fax: 707-769-9037 From: Kent Osterberg To: RE-wrenches Sent: Thu, September 9, 2010 9:38:55 AM Subject: Re: [RE-wrenches] Wiley Asset Benn, At 25 ft a 1-inch power line subtends an angle of 0.2 degree. The sun subtends an angle of 0.5 degree, so the power line will not make a dark shadow on the modules - only 50% of the light can be blocked. Depending on the distance from the module to the wire, along the ray to the sun, the wire will probably block a little less light. But a 50% reduction in the light on a few cells will probably reduce the entire module output by 50%. A shadow every day for the hours you are talking about sounds like a pretty serious issue. Kent Osterberg Blue Mountain Solar benn kilburn wrote: Thanks for the feed back guys, much appreciated! Now, how would you calculate for power/phone lines running thru the Pathfinder's reflection. There are about 6 of them (the largest being at least 1") at least 25-30 ft away directly east of the proposed array location, and they are running straight north-south. On the Pathfinder they run btwn 9 and 11am in June and btwn 10:30 and 11:30 in December. Would the pathfinder software, suneye or asset pick up on utility lines at that distance? How much effect do they have on available sun output? And while i'm at it, how much do the 'software' tools pick up on the tips of leafless tree branches at say 25ft, 50ft? i'll try out that spreadsheet idea, nice one! cheers, benn DayStar Renewable Energy Inc. b...@daystarsolar.ca 780-906-7807 HAVE A SUNNY DAY Date: Wed, 8 Sep 2010 20:05:08 -0700 To: re-wrenches@lists.re-wrenches.org From: will...@millersolar.com Subject: Re: [RE-wrenches] Wiley Asset Benn: A colleague has used the Wiley took and calls it 'marginal.' I use the Pathfinder and I like the features Ray described. I wrote a very simple spreadsheet using the teeny numbers on the month lines to create 100% of any month. I highlight and delete any of the numbers that are shaded and the remainder is the percent of exposure for a given month. You can multiply the output of PV watts or any other production result for a complete production prediction. Easy and free. William Miller At 05:38 PM 9/8/2010, you wrote: I've used the Pathfinder for decades, so I'm partial to them. Great for on-site discussions of shading issues with the customer, as multiple people can see the shading at the same time on the spot. I've also used their Assistant software, and it works pretty well. You take a photo of the actual pathfinder from above, and then download the photo into their software. You can then calculate total annual impact of any shading in Kwh, or percentage of annual production. I've been quite happy with the system, and the price for a Pathfinder, and the software is much less than the Suneye, I believe. R. Walters r...@solarray.com Solar Engineer On Sep 8, 2010, at 3:46 PM, benn kilburn wrote: Wrenches, I'm looking at trying out another 'solar site evaluation tool', the ASSET (Acme Solar Site Evaluation Tool) from Wiley Electronics. I'm looking for feedback on its performance and user-ability. I have been using the pathfinder w
Re: [RE-wrenches] Wiley Asset
Hi Kent: At my site, the wire is directly above the module, and the module is oriented with a 210 deg. AZ, and the shadow is there most of the day. It is a very clear, visible shadow and has had no effect on output. Strangely, that module has produced more power than any other module on the roof. So maybe it helps the output, I doubt that, though. Nick Soleil Project Manager Advanced Alternative Energy Solutions, LLC PO Box 657 Petaluma, CA 94953 Cell: 707-321-2937 Office: 707-789-9537 Fax:707-769-9037 From: Kent Osterberg To: RE-wrenches Sent: Thu, September 9, 2010 10:50:38 AM Subject: Re: [RE-wrenches] Wiley Asset Nick, Depending on the hours that the shadow is on the module, that indeed may be the case. I have a similar circumstance with a recent Enphase installation too: the shadow of a triplex service cable about 6 feet away shadows the lower half of the array from sunrise until 7:00 am (in the summer it won't last as long but in the winter it'll last longer). During the time in question, the power output is reduced by nearly 20%, yet the energy output for the day is only reduced by 0.2% because the shadow doesn't last long and it occurs at a time when the power output is low. The effect on energy production depends on how large the shadow is, how long it lasts, and what hours it occurs. Kent Osterberg Blue Mountain Solar Nick Soleil wrote: Hi Kent: >I am sure that aerial wires have very little impact on system outputs. I >just checked the Enphase Enlighten data for a system I recently installed, >which >had a 1-2" to 3/4" wire bundle running just 5' above a solar modules. The >wire >cast a distinct shadow on the module in question, but upon reviewing the >output >of that module, compared with all other modules at the same orientation, I >have >found that there is absolutely no effect on the production. I am surprised >that >I can not even see any difference. That module has always produced within 99% >of the other modules on that roof, and the total output of that module is as >high or higher than the other modules! >Nick Soleil >Project Manager >Advanced Alternative Energy Solutions, LLC >PO Box 657 >Petaluma, CA 94953 >Cell: 707-321-2937 >Office: 707-789-9537 >Fax: 707-769-9037 > > > > > From: Kent Osterberg >To: RE-wrenches >Sent: Thu, September 9, 2010 9:38:55 AM >Subject: Re: [RE-wrenches] Wiley Asset > > Benn, > >At 25 ft a 1-inch power line subtends an angle of 0.2 degree. The sun >subtends >an angle of 0.5 degree, so the power line will not make a dark shadow on the >modules - only 50% of the light can be blocked. Depending on the distance >from >the module to the wire, along the ray to the sun, the wire will probably block >a >little less light. But a 50% reduction in the light on a few cells will >probably reduce the entire module output by 50%. A shadow every day for the >hours you are talking about sounds like a pretty serious issue. > >Kent Osterberg >Blue Mountain Solar > > >benn kilburn wrote: >Thanks for the feed back guys, much appreciated! >> >> >>Now, how would you calculate for power/phone lines running thru the >>Pathfinder's >>reflection. There are about 6 of them (the largest being at least 1") at >>least >>25-30 ft away directly east of the proposed array location, and they are >>running >>straight north-south. On the Pathfinder they run btwn 9 and 11am in June and >>btwn 10:30 and 11:30 in December. >> >> >>Would the pathfinder software, suneye or asset pick up on utility lines at >>that >>distance? How much effect do they have on available sun output? And while >>i'm >>at it, how much do the 'software' tools pick up on the tips of leafless tree >>branches at say 25ft, 50ft? >> >> >>i'll try out that spreadsheet idea, nice one! >> >> >>cheers, >>benn >> >>DayStar Renewable Energy Inc. >>b...@daystarsolar.ca >>780-906-7807 >>HAVE A SUNNY DAY >> >> >> >> Date: Wed, 8 Sep 2010 20:05:08 -0700 >>To: re-wrenches@lists.re-wrenches.org >>From: will...@millersolar.com >>Subject: Re: [RE-wrenches] Wiley Asset >> >>Benn: >> >>A colleague has used the Wiley took and calls it 'marginal.' >> >>I use the Pathfinder and I like the features Ray described. I wrote a very >>simple spreadsheet using the teeny numbers on the month lines to create 100% >>of >>any month. I highlight and delete any of the numbers that are shaded and the >>remainder is the percent of exposure for a given month. You can multiply the >>output of PV watts or any other production result for a complete production >>prediction. Easy and free. >> >>William Miller >> >> >>At 05:38 PM 9/8/2010, you wrote: >> >>I've used the Pathfinder for decades, so I'm partial to them. Great for >>on-site >>discussions of shading issues with the customer, as multiple people can see >>the >>shading at the same time on
Re: [RE-wrenches] Wiley Asset
I checked out this instrument when it came out a couple years ago. In my opinion, there were two fatal flaws with it. 1. It only evaluates azimuths +/- 45 degrees of true south... 2. It required too many steps. I.e. Shoot at least 7 images; Download to your computer; Stitch the images together into a single file; Run the analysis; Generate the report... I discussed these issues with the Wiley folks and they pretty much didn't think any of this was a problem... Don't know if they have addressed these issues or not. From reading the manual again, it looks like they have not. Compared to the Solmetric SunEye, it's too limited, too complicated, and has too many chances for errors. The SunEye is a professional tool. The ASSET is not. $0.02001 -Matt Lafferty On Wed, Sep 8, 2010 at 2:46 PM, benn kilburn wrote: > Wrenches, > > I'm looking at trying out another 'solar site evaluation tool', the ASSET > (Acme Solar Site Evaluation Tool) from Wiley Electronics. I'm looking for > feedback on its performance and user-ability. > I have been using the pathfinder which is great, but not the pathfinder > software. > > Any comments on the ASSET or Pathfinder software would be greatly > appreciated. > > Cheers, > benn > > DayStar Renewable Energy Inc. > b...@daystarsolar.ca > 780-906-7807 > HAVE A SUNNY DAY > > > ___ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > > ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
[RE-wrenches] 48v small controllers
HI All, Any recommendations on a small 7-10 amp 48v controller, preferably sealed. its for a 48v golf cart. Thanks, jay peltz power This message was sent using IMP, the Internet Messaging Program. ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] 48v small controllers
Hi Jay, We really like Phocos controllers for smaller applications. Check out "The DIngo". http://www.phocos.com/datasheet_cc_dingo.html Daryl DeJoy NABCEP Certified PV installer Penobscot Solar Design > HI All, > > Any recommendations on a small 7-10 amp 48v controller, preferably sealed. > its for a 48v golf cart. > > Thanks, > > jay > > peltz power > > > This message was sent using IMP, the Internet Messaging Program. > > > ___ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] 48v small controllers
Morningstar makes a 48V Prostar. Allan Sindelar Allan@positiveenergysolar.com NABCEP Certified Photovoltaic Installer EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 9/9/2010 6:23 PM, j...@asis.com wrote: HI All, Any recommendations on a small 7-10 amp 48v controller, preferably sealed. its for a 48v golf cart. Thanks, jay peltz power This message was sent using IMP, the Internet Messaging Program. ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] 48v small controllers
Hi Jay, The C-40 is probably your cheapest bet, although not sealed. Or...maybe use three Evergreen ES-A 215W modules in series without a controller? Vmp would be 55.2V at STC, but maybe still too risky as the Voc would be over 68V at STC. Depends on how much the cart gets used, and the number of hours needed each day to get to full charge. Brian Teitelbaum AEE Solar -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of j...@asis.com Sent: Thursday, September 09, 2010 5:23 PM To: RE-wrenches Subject: [RE-wrenches] 48v small controllers HI All, Any recommendations on a small 7-10 amp 48v controller, preferably sealed. its for a 48v golf cart. Thanks, jay peltz power This message was sent using IMP, the Internet Messaging Program. ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
