Solar: Roof or Portable ... why not both... - Page 4 - Escape Trailer Owners Community

Go Back   Escape Trailer Owners Community > Escape Tech > Modifications and Alterations
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 08-02-2015, 03:38 PM   #31
Senior Member
 
Join Date: Sep 2014
Location: Allendale, New Jersey
Trailer: 19' towed by a 4Runner
Posts: 252
Quote:
Originally Posted by T&R View Post
It's definitely too late to have it added to the normal production process as solar panels are now being mounted very early in the construction process since they switched to bolt through mounting. My very first production pics I received of the bare shell already had the panel attached and my completion date is 8/24.
Noticed that too. Probably just go the portable route when I feel the need.
__________________

GRINGOandTICA is offline   Reply With Quote
Old 08-02-2015, 05:52 PM   #32
Senior Member
 
rbryan4's Avatar
 
Join Date: Jun 2014
Location: San Antonio, Texas
Trailer: 2015 19 "Past Tents", 2015 F150 Ecoboost
Posts: 7,605
Quote:
Originally Posted by Mike Lewis View Post
....in the fall and early spring I discovered that this wasn't enough to fully charge my two 6V batteries. I assume this is because of the drain due to the furnace fan and the fact that the sun is lower in the sky then.
Yep. Photovoltaic cells produce way less power when the sun is at a low angle to the panel. They like high noon in summer. If I were designing a roof mounted solar system from scratch, I'd probably go with something similar to what Steve (hotfishtacos) did - tiltable panels so the sun's angle is more direct. Makes a huge difference in the power produced.
__________________

__________________
"You can't buy happiness, but you can buy an RV. And that is pretty close."
rbryan4 is offline   Reply With Quote
Old 08-02-2015, 06:45 PM   #33
Senior Member
 
padlin's Avatar
 
Join Date: Sep 2009
Location: Southwick, Massachusetts
Trailer: 5.0 TA #6, 2012 F150 EB
Posts: 3,839
I've been told to figure 50% power loss summer vs winter with a flat mount panel. Put another way, you need twice the panel surface come winter.
__________________
Happy Motoring
Bob
padlin is offline   Reply With Quote
Old 08-02-2015, 07:10 PM   #34
Senior Member
 
Join Date: May 2009
Location: Calgary, Alberta
Trailer: 2015 5.0TA
Posts: 241
I have 2 panels coming on my 5.0ta. It will be interesting to see how it will recharge in spring and fall, especially in blm lands in winter.

ken
__________________
2015 5.0TA, 2015 Silverado 5.3
TRAILER NAME: " SUNBIRDS EGSK8P "
16 to 18 MPG CDN Towing
KEN AND DIANA, CALGARY
kvermeulen is offline   Reply With Quote
Old 08-02-2015, 07:47 PM   #35
Senior Member
 
padlin's Avatar
 
Join Date: Sep 2009
Location: Southwick, Massachusetts
Trailer: 5.0 TA #6, 2012 F150 EB
Posts: 3,839
Quote:
Originally Posted by kvermeulen View Post
I have 2 panels coming on my 5.0ta. It will be interesting to see how it will recharge in spring and fall, especially in blm lands in winter.

ken
Here's a calculator to play with that you may find interesting.

Solar Irradiance - calculate the solar energy available on your site

Select the location, you can try the different panel angles to see how much you lose or gain throughout the year. Here's flat mount panels and in Phoenix.
Attached Images
File Type: jpg Pheonix_flat.jpg (49.4 KB, 14 views)
__________________
Happy Motoring
Bob
padlin is offline   Reply With Quote
Old 08-02-2015, 08:29 PM   #36
Senior Member
 
rbryan4's Avatar
 
Join Date: Jun 2014
Location: San Antonio, Texas
Trailer: 2015 19 "Past Tents", 2015 F150 Ecoboost
Posts: 7,605
Solar: Roof or Portable ... why not both...

So yeah, using that calculator, there's more than a 50% drop in output during some winter months, even in a lower latitude like the desert southwest US where the sun's angle is higher.
__________________
"You can't buy happiness, but you can buy an RV. And that is pretty close."
rbryan4 is offline   Reply With Quote
Old 08-02-2015, 09:57 PM   #37
Senior Member
 
OneOleMan's Avatar
 
Join Date: Sep 2014
Location: Seattle, Washington
Trailer: 2015 17B Sold 5/2016
Posts: 345
Quote:
Originally Posted by OneOleMan View Post
Give 'em a call first thing tomorrow, ya never know if ya don't ask.
Quote:
Originally Posted by amirie View Post
Don't call tomorrow--it's BC Day here---Hopefully they are taking the day off, for some much deserved R & R.
Ooops
__________________
Pat
Life is Good
When "Escaping Reality" Sold 5/2016
2012 4Runner
OneOleMan is offline   Reply With Quote
Old 08-02-2015, 10:00 PM   #38
Senior Member
 
Vermilye's Avatar
 
Join Date: Feb 2010
Location: Oswego, New York
Trailer: 2016 Tacoma Off Road, 2017 21
Posts: 2,283
I have both. 195 watts on the roof, and a Solar Blvd 160 watt folding panel in the back of the RAV4. While the roof panels keep up with me in the summer, even after a few not so sunny days, the portable is useful when I'm parked in the shade.

On the other hand, with just the portable panel you don't get any charging while traveling, or unless you are willing to leave it out while away from the trailer, and when you are there you usually have to keep moving it to keep out of the shadows & aligned with the sun. There is an advantage to having both.
__________________
Jon Vermilye My Travel Blog
Travel and Photo Web Page ... My Collection of RV Blogs 2016 Tacoma, 2017 21
Vermilye is offline   Reply With Quote
Old 08-02-2015, 10:11 PM   #39
Senior Member
 
skiman's Avatar
 
Join Date: Nov 2013
Location: Jeromesville, Ohio
Trailer: Escape 21' pulled with 2014 Silverado Crewcab
Posts: 589
Quote:
Originally Posted by Vermilye View Post
I have both. 195 watts on the roof, and a Solar Blvd 160 watt folding panel in the back of the RAV4. While the roof panels keep up with me in the summer, even after a few not so sunny days, the portable is useful when I'm parked in the shade.

On the other hand, with just the portable panel you don't get any charging while traveling, or unless you are willing to leave it out while away from the trailer, and when you are there you usually have to keep moving it to keep out of the shadows & aligned with the sun. There is an advantage to having both.
Jon,

How is running multiple panels working out? Are all 3 panels paralleled on your Gopower controller? Do I understand correctly that you need to select additional panels to be of similar voltage output. Thanks.
__________________
Carl,

"Isn't it amazing how much stuff we get done the day before vacation?"
Zig Ziglar
skiman is offline   Reply With Quote
Old 08-02-2015, 10:54 PM   #40
Senior Member
 
Mike Lewis's Avatar
 
Join Date: Feb 2013
Location: Santa Rosa County, Florida
Trailer: 2014 Escape 21
Posts: 1,379
Quote:
Originally Posted by rbryan4 View Post
Yep. Photovoltaic cells produce way less power when the sun is at a low angle to the panel. They like high noon in summer. If I were designing a roof mounted solar system from scratch, I'd probably go with something similar to what Steve (hotfishtacos) did - tiltable panels so the sun's angle is more direct. Makes a huge difference in the power produced.
I currently have three roof-mounted panels; the 95W panel from ETI and two panels installed by a vendor- 160W and 100W. The vendor offered to use tiltable mounts but I declined, since I'm sure that sooner or later I'd forget to stow the panels correctly before departure, then lose them when driving down the road.
__________________

__________________
Mike Lewis
She don't lie, she don't lie, she don't lie-- Propane.
Mike Lewis is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off






» Virginia Campgrounds

Reviews provided by



All times are GMT -5. The time now is 12:32 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 Social Knowledge, LLC All Rights Reserved.