[RE-wrenches] Wiley Asset

Wed Sep 8 22:30:13 PDT 2010

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. benn at daystarsolar.ca780-906-7807 HAVE A SUNNY DAY

Date: Wed, 8 Sep 2010 20:05:08 -0700
To: re-wrenches at lists.re-wrenches.org
From: william at 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

ray at 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. 

benn at daystarsolar.ca

780-906-7807 

HAVE A SUNNY DAY

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