[RE-wrenches] Thermal imaging

Bill Hoffer sunengser at gmail.com
Thu Jun 13 16:40:57 PDT 2013


Andrew

Next SEI class PV351L
<http://www.solarenergy.org/workshop/solar-training-pv-systems-tools-and-techniques-operation-and-maintenance-lab-week-grid-dire?wid=1872>is
in Aug, the cost is high , but they limit the instructor to student ratio
to 1:4 and the entier class to 12 people to make sure everyone gets a
chance for hands on with all the fancy new tools!

It is awesome!

Bill


On Thu, Jun 13, 2013 at 3:36 PM, Andrew Truitt <atruitt at gmail.com> wrote:

> Thanks all!
>
> Jeff - I like the price point on that Fluke VT02!  It seems like it would
> do the trick for most electrical applications.  Have you tried locating hot
> spots on modules with it?
>
> Bill - The Flir E-series looks awesome but is a little out of my price
> range.  I looked at that SEI course but it just completed.  However, I see
> that you are one of the instructors!  Any idea when the next class will
> be?  Is there any way for me to access the course materials?
>
> Randy - The Flir i7 clearly can handle both the electrical and the module
> hot-spot duties.  Thanks for the great image!
>
>
>
> For a brighter energy future,
>
>
> Andrew Truitt
> NABCEP Certified PV Installation Professional™ (ID# 032407-66)
>
> Principal
> Truitt Renewable Energy Consulting, LLC****
>
> (202) 486-7507
>
> LinkedIn Profile <http://www.linkedin.com/pub/andrew-truitt/8/622/713>
>
> Company Website <http://truittreconsulting.weebly.com/>
>  <%28202%29%20486-7507>****
>
>
> [image: 24 copy.jpg]
>
> "Don't get me wrong: I love nuclear energy! It's just that I prefer fusion
> to fission. And it just so happens that there's an enormous fusion reactor
> safely banked a few million miles from us. It delivers more than we could
> ever use in just about 8 minutes. And it's wireless!"
>
> ~William McDonough
>
>
>
>
>
>
>
>
>
>
> On Wed, Jun 12, 2013 at 9:14 AM, Randy <randy at positiveenergysolar.com>wrote:
>
>> Andrew,****
>>
>> We purchased the Flir I7 based on Bill Brooks recommendations.  It has
>> worked well. Plenty of battery life for doing large arrays****
>>
>> ** **
>>
>> We have evaluated over 400kW of arrays and we have found issues – we
>> found modules that show hot cells. We learned the temperature impact of
>> shading and dirt or bird poop on the module.  We discovered 7 modules at
>> one 120kW site and when we did IV curves we found  only one module had
>> reduced output. ****
>>
>> ** **
>>
>> See attached photo as an example.****
>>
>> Good luck.****
>>
>> Randy****
>>
>> ** **
>>
>> Randy Sadewic****
>>
>> Positive Energy****
>>
>>  ****
>>
>> Office: 505 424-1112****
>>
>> Cell:    505 570-0137****
>>
>> *From:* re-wrenches-bounces at lists.re-wrenches.org [mailto:
>> re-wrenches-bounces at lists.re-wrenches.org] *On Behalf Of *Andrew Truitt
>> *Sent:* Tuesday, June 11, 2013 4:55 PM
>> *To:* RE-wrenches
>> *Subject:* [RE-wrenches] Thermal imaging****
>>
>> ** **
>>
>> Wrenches - I am considering the purchase of a thermal imaging camera for
>> PV system commissioning applications.  Prices seem to range from $1,000 to
>> $10,000+.  Primary manufacturers seem to be Fluke and Flir, with Extech,
>> Ideal and Milwaukee offering a few products as well.  It seems to me that
>> the key factors to consider are temperature range, thermal sensitivity,
>> screen resolution, screen size, battery life, type of image capture and
>> price.  Does anyone have experience with using thermal imaging to identify
>> temperature irregularities in modules and/or electrical equipment?  What
>> temperature range, thermal sensitivity, and screen resolution is needed for
>> both/either of these tasks?  What have been the key factors/specifications
>> in terms of ergonomics and functionality?  Any preferences in terms of
>> manufacturer?****
>>
>> ** **
>>
>> ** **
>>
>> For a brighter energy future,
>>
>>
>> Andrew Truitt
>> NABCEP Certified PV Installation Professional™ (ID# 032407-66)****
>>
>> Principal
>> Truitt Renewable Energy Consulting, LLC****
>>
>> (202) 486-7507****
>>
>> LinkedIn Profile <http://www.linkedin.com/pub/andrew-truitt/8/622/713>***
>> *
>>
>> Company Website <http://truittreconsulting.weebly.com/>****
>>
>>
>> [image: 24 copy.jpg]
>>
>> "Don't get me wrong: I love nuclear energy! It's just that I prefer
>> fusion to fission. And it just so happens that there's an enormous fusion
>> reactor safely banked a few million miles from us. It delivers more than we
>> could ever use in just about 8 minutes. And it's wireless!"
>>
>> ~William McDonough****
>>
>> ** **
>>
>>
>>
>> ****
>>
>> ** **
>>
>>   ****
>>
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-- 
Bill Hoffer
P.O. Box 1823
White Salmon, WA 98672
sunengser at gmail.com <bhoffer at sunergyengineeringservices.com>
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