Re: [RE-wrenches] Parallel wire runs to increase size

That's true Dan. "Not all of the current" would be on the larger wire, but most would be, assuming that the old #10 and the connections are still good. And hopefully, it isn't landed on the 12V terminals on the back of the refrigerator. Nick Soleil Project Manager Advanced Alternative En

Re: [RE-wrenches] Electro-calc calculator

Hi Allan, Here's the link...it's $39.95. http://www.calculated.com/prd318/ElectriCalc+Pro+NEC+2005+2008+and+2011+Upgrade+Kit.html Roy Butler NABCEP Certified Solar PV Installer® NYSERDA eligible PV & wind installer PA Sunshine Program Approved PV Insta

Re: [RE-wrenches] Electro-calc calculator

I think you have to send it in. I have 2 so I do one at a time. Dana Orzel Great Solar Works, Inc E - d...@solarwork.com V - 970.626.5253 F - 970.626.4140 C - 970.209.4076 web - www.solarwork.com "Responsible Technologies for Responsible People since 1988" Do not ever believe anythin

[RE-wrenches] Data System Puzzle

Sorry for the long post. I don't know how else to communicate this issue. We installed an Energy Recommerce data system on a project last year that we have not been able get working properly. Everything works except the monitoring of the series string amperage outputs from the solar array. There ar

[RE-wrenches] Electro-calc calculator

I see that one does not have to send in the calculator anymore. This makes it even better. Thx. Dana Orzel Great Solar Works, Inc E - d...@solarwork.com V - 970.626.5253 F - 970.626.4140 C - 970.209.4076 web - www.solarwork.com "Responsible Technologies for Responsible People sinc

[RE-wrenches] Low light panel

Hello Wrenches, I'm looking for a panel which will provide 0.7A at 12-20V with only a 60 lumen light source for the irradiance source With REgards Carl Adams SunRock Solar LLC ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.r

Re: [RE-wrenches] Low light panel

Physically impossible unless you have about an acre for panels. -Original Message- From: Carl Adams Sent: Thursday, February 03, 2011 2:18 PM To: RE-wrenches@lists.re-wrenches.org Subject: [RE-wrenches] Low light panel Hello Wrenches, I'm looking for a panel which will provide 0.7A at

Re: [RE-wrenches] Low light panel

We built a display for a Science Center shining a 350 watt halogen bulb onto a 20 watt module. We could get .4 amps out of the 12 volt panel. No matter how large the array it can't be done with 60 lumens because the light disperses at the same rate that the array surface area increases. Nathan J

Re: [RE-wrenches] Low light panel

If the source is a light bulb or similar, no it cannot be done at all. If the source was something like a very heavily clouded sky, or twilight in the Arctic, it could be. A 23 watt CFL puts out around 1200 to 1600 Lumens. So to get the wattage needed (.7 amps @ 15 volts), you would need a pan

Re: [RE-wrenches] Data System Puzzle

Do you have any wiring close to the actual sensors or circuit board that might be interfering with them? -Original Message- From: vi...@solarenergydesign.com Sent: Thursday, February 03, 2011 11:46 AM To: RE-wrenches Subject: [RE-wrenches] Data System Puzzle Sorry for the long post. I

[RE-wrenches] Odd Inverter Behavior

Hi Wrenches - We were called out today to check out an under performing system installed by another contractor. This is an odd case. The system has 24 Suntech 180s in three strings of 8 and a SMA Sunnyboy 4000us. Open circuit voltage for each string was about 330 Volts and we verified that everyt

Re: [RE-wrenches] Low light panel

This is a pretty good example of how obscure the various "lighting" variables are for even solar pros. I won't go into the gory details (and they are details of some depth, trust me). So let's take the following shortcut. A decent CFL puts out 60 lumens per watt of power consumed. So, in theory,

Re: [RE-wrenches] Low light panel

Thanks Peter, I was trying to figure out how to translate from lumens, good job Darryl From: Peter Parrish To: RE-wrenches Sent: Thu, February 3, 2011 5:40:44 PM Subject: Re: [RE-wrenches] Low light panel This is a pretty good example of how obscure the vario

Re: [RE-wrenches] Odd Inverter Behavior

I have seen that behavior almost. if open cirucit is 330 then MPPT should be about 264 which is to close to bottom of the window. Last summer a sunny boy in a similar situation of 8 modules in string was droping out on MPPT tracking. The inverter had additional module added and started to be

Re: [RE-wrenches] Data System Puzzle

Hi Vince, I don't know anything about Energy Recommerce, but a search of their website did not result in finding an installation manual for their combiner box, only a datasheet. You stated countless hours were spent on the phone with their technicians. If it was my job, at this point, I would want

Re: [RE-wrenches] Data System Puzzle

Vince, I had a similar experience a couple years ago with a Fat Spaniel string monitoring box w/ Hall Effect sensors, on MODBUS comm, etc. The folks at FS couldn't help at all, and like you I spent countless hours on the phone with the technicians to no avail. Then I found out that their boxes were