Re: [RE-wrenches] 48v small controllers

2010-09-09 Thread Brian Teitelbaum
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

Re: [RE-wrenches] 48v small controllers

2010-09-09 Thread Allan Sindelar
Morningstar makes a 48V Prostar. Allan Sindelar Allan@positiveenergysolar.com NABCEP Certified Photovoltaic Installer EE98J Journeyman Electrician Positive Energy, I

Re: [RE-wrenches] 48v small controllers

2010-09-09 Thread penobscotsolar
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 se

[RE-wrenches] 48v small controllers

2010-09-09 Thread jay
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. _

Re: [RE-wrenches] Wiley Asset

2010-09-09 Thread Skip Towne
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 tog

Re: [RE-wrenches] Wiley Asset

2010-09-09 Thread Nick Soleil
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 th

Re: [RE-wrenches] Wiley Asset

2010-09-09 Thread Kent Osterberg
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 summ

Re: [RE-wrenches] Wiley Asset

2010-09-09 Thread Nick Soleil
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 questio

Re: [RE-wrenches] Wiley Asset

2010-09-09 Thread Kent Osterberg
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,

Re: [RE-wrenches] Wiley Asset

2010-09-09 Thread Nick Soleil
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, an