Tim Kendzia
  • Haddam, CT
  • United States
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Tim Kendzia's Discussions

Cooling effect from solar panels

Started this discussion. Last reply by Steve Leombruno May 5, 2016. 15 Replies

Is there any hard data out there or any personal experience about reduced cooling load as a result of solar panels installed on a south facing roof? So far I have found 1 study showing a 5 degree…Continue

Tags: j, manual, modeling, net-zero, solar

 

Tim Kendzia's Page

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Tim Kendzia liked Home Energy Magazine's blog post Do Low Flow Showerheads Save Water?
Apr 10
Steve Leombruno replied to Tim Kendzia's discussion Cooling effect from solar panels
"I have been told t"
May 5, 2016
Tom Barrett replied to Tim Kendzia's discussion Cooling effect from solar panels
"Any type of shading will help greatly. One of the biggest, if not the biggest, factor for high summertime attic temperature is the type of roofing material used. The most commonly installed roofing is asphalt shingles, which when exposed to the…"
May 5, 2016
Rich Manning replied to Tim Kendzia's discussion Cooling effect from solar panels
"I don't think anyone can dispute the fact that the roof would be cooler, although putting a number on it would be difficult. As far as using it to lower the cooling load and therefore the KWH, in my opinion would be risky and unwarranted.…"
May 5, 2016
Tim Kendzia's discussion was featured

Cooling effect from solar panels

Is there any hard data out there or any personal experience about reduced cooling load as a result of solar panels installed on a south facing roof? So far I have found 1 study showing a 5 degree roof temperature difference on 1 roof over 3 days...In my mind you would be able to see a marked difference in summer heat gain from an exposed roof compared with a roof with solar panels.. The home I currently am investigating is in New England, has a dark colored shingles and I'm looking in…See More
Apr 26, 2016
Tom Mallard replied to Tim Kendzia's discussion Cooling effect from solar panels
"Sidenote first, the thermal units are a commercial brand sold with the pump, they make custom panels used in a proprietary system, it's pricey yet payback is pretty fast & afaik they can adapt theirs to existing brands. Yup in summer my…"
Apr 11, 2016
Steve Leombruno replied to Tim Kendzia's discussion Cooling effect from solar panels
"I should add; not using micro invert type panels"
Apr 11, 2016
Steve Leombruno replied to Tim Kendzia's discussion Cooling effect from solar panels
"Actually inside the home."
Apr 11, 2016
Tim Kendzia replied to Tim Kendzia's discussion Cooling effect from solar panels
"There are some affordable data logging thermometers, it would be a good experiment to install one underneath a shingle under an array and to install one on the same roof plane under a shingle but not under the array; and to record the changing…"
Apr 11, 2016
Tim Kendzia replied to Tim Kendzia's discussion Cooling effect from solar panels
"5 degrees less on the roof beneath? Great!"
Apr 11, 2016
Tim Kendzia replied to Tim Kendzia's discussion Cooling effect from solar panels
"Tom, I don'the see any reason why we shouldn't harvest the heat beneath the panels; I would be worried about the roof top temperature becoming too high in the summer and frying the micro inverters (terminals are rated at 75 C) if there was…"
Apr 11, 2016
Tim Kendzia liked Tim Kendzia's discussion Cooling effect from solar panels
Apr 11, 2016
Tom Mallard replied to Tim Kendzia's discussion Cooling effect from solar panels
"Agree that shading does work to reduce heat-load nice stats from Dennis, now consider in winter using the panels to heat air by mounting them with 3/4" air-sealed gap ducted to the system to collect it, same system cools in summers storing at…"
Apr 11, 2016
Phil Barnes replied to Tim Kendzia's discussion Cooling effect from solar panels
"I just got back from the NABCEP conference in San Diego.  John Schehl from RISE, indicated there is heat build up that occurs under PV modules.  The heat build-up is not a direct function of UV, rather heat build up from module heat…"
Apr 9, 2016
Steve Leombruno replied to Tim Kendzia's discussion Cooling effect from solar panels
"Yes, cooling effect occurs with south facing solar roof top panels.  I am seeing a 5 degree farenheit decrease from late May to early August here in the PNW."
Apr 8, 2016
Dennis Heidner replied to Tim Kendzia's discussion Cooling effect from solar panels
"We have PV panels on our roof,  we tracked the panel temps, microinverter temps,  and attic temps for a couple of years.  We did see a definite reduction in attic temps under the panels.  Five degrees F is reasonable.  But…"
Apr 7, 2016

Profile Information

Company
NRG Home Solar
Role in Home Performance Marketplace
Energy auditor / assessor / analyst
Professional Certification
BPI
Professional Interests
Home Energy Efficiency Testing, Data Analysis, Net-zero energy homes
LinkedIn Profile
https://www.linkedin.com/in/tim-kendzia-8a5a6bba

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At 1:46pm on March 22, 2016, Diane Chojnowski said…

Hi Tim,

Welcome to Home Energy Pros. Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos and upcoming events. If you're blogging about home performance, this is the place for you!

Don't forget to upload your profile photo.

Thanks!

Diane, HEP Moderator

 
 
 

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