solar panel mounting

Discussion in 'Motorhome Chat' started by pappajohn, Jul 29, 2008.

  1. pappajohn

    pappajohn Funster Life Member

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    anyone know.....

    is there any reason why i cant mount a solar panel 110mm above the roof.

    i can only fit the panel to one side due to other stuff taking roof space and the roof rail is in the way. this stands 100mm high and i need to get above this.....i could use it as a rigid mounting point for one side of the panel.

    JSW suggested it should not be near the edge but i have no choice and i'm aware of the reason.

    any advise welcome,

    john.
     
  2. Brenintot

    Brenintot Read Only Funster

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    Just a couple of thoughts,

    I guess the closer to the roof the less wind resistance is created & there would be possibly less chance of damage from overhanging branches etc coming in contact whilst on the move.

    Also if the wind did get under it, it may create lift due to turbulence & in worst case, detach from the roof.

    Regards
    Brenintot
    Chris Tottle - Photography: Welcome
     
  3. Jim

    Jim Ringleader

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    Mount it where you can John, wind at motorway speeds might be a problem but I am sure you could make some sort of baffle to stop the wind getting under it.

    A good reason to have them on the centre of the motorhome is that it makes them harder to see. You would not be the first to person to lose an expensive panel from the roof. Those sit-up and track the sun ones are very attractive to the toerags and I have seen a couple of reports of them being stolen.
     
  4. pappajohn

    pappajohn Funster Life Member

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    that was one concern but as it would be directly behind the overcab bulge(Such as it is) i would expect downforce and turbulance not lift.

    all my rooflights have plastic 'spoilers' in front of them so one could be fitted in front of the panel.

    getting closer to a decision by the minute/post.

    cheers,

    john.
     
  5. pappajohn

    pappajohn Funster Life Member

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    JSW pointed out that problem but its a case of...take a chance or stick to the genny.

    with our TV usage ect a 60/80w panel probably wouldnt be up to it even though it wound fit closer to the roof.

    john.
     
    Last edited: Jul 29, 2008
  6. paulharrison

    paulharrison Read Only Funster

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    Hi pappa
    just put a piece of plastic cladding in front of the panel to protect it from branches, the higher off your roof the better:Rofl1:closer to the sun:Rofl1:
    paul
     
  7. pappajohn

    pappajohn Funster Life Member

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    good idea paul, cheers

    john.
     
  8. bsb2000

    bsb2000 Read Only Funster

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    John,

    What are you securing it to the roof with? mine should be here tomorrow and I was thinking about Silkoflex and screws just to be sure, but I read somewhere that Silkoflex is so good you wouldn't need the screws.

    Ian
     
  9. pappajohn

    pappajohn Funster Life Member

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    hi,
    i fitted my maxview crankup using sikaflex only but i used nearly a full tube.:Eeek:

    i have just removed my status flying saucer aerial and it took the best part of an hour and a VERY sharp stanley blade and it only had a 1/2" bead of sikaflex.:Eek!:

    i think the mounts have a relatively small contact area so i would use screws as well.....dont forget to put a blob of sealer under the screw heads.

    where did you buy your panel as im still trying to find the best deal.

    john.
     
  10. bsb2000

    bsb2000 Read Only Funster

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    Got a cracking last minute bid in on EBay, 120W kit incl regulator, leads etc £390 and cheap delivery (Always a bonus on EBay)

    Hope I didn't bid against anyone on here :RollEyes:
     
  11. pappajohn

    pappajohn Funster Life Member

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    Bu**er :Angry:
    cheapest i found on ebay was £399 for a 120w with short flyleads / plugs only, no controller.
     
  12. Beachbum

    Beachbum Read Only Funster

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    Hi Pops, just a stupid idea. What if you had your panel on hinges. Fold it down partially when driving. Even if it does not fold completely, less wind resistance. Another thought. Have it on a swivel plate with hinges, it can then be turned to the lowest point of folding. Use some form of padding against obstruction when folded. When upright, you can direct the panel towards the sun anytime of the day as it is on a swivel :pray:
     
  13. bsb2000

    bsb2000 Read Only Funster

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    John, I've just checked the Peeps that I got mine from and they haven't listed anymore. They had a few different sizes, I suspect they were just seeing how they went.

    Will let you know if I see them list anymore.
     
  14. pappajohn

    pappajohn Funster Life Member

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    Mmmm!!!!:Rofl1::Rofl1::Rofl1:
     
  15. pappajohn

    pappajohn Funster Life Member

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    thanks....think im going for the £399 one and have to buy a reg unit and cables.

    cant find anything on ebay or the web to beat it. 120w seem to be around the £500 mark.
     
  16. johnsandywhite

    johnsandywhite Read Only Funster

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    :Angry: No. Not really. I'll have to STOP pointing out these good deals on ebay. :thumb:

    BTW pappajohn. I have done OVER 80mph with our Coachmen, Gulfstream and Newmar and had NO trouble with the panels lifting. The Coachmen had the first one fitted just with Sikaflex. The next 2 with screws and Silicone. Same 2 panels the same on our Gulfstream. The 2 on our Newar were fitted in the USA using Sikaflex.
     
    Last edited: Jul 30, 2008
  17. pappajohn

    pappajohn Funster Life Member

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    cheers john,

    i just bought the 120w panel you pointed out on ebay plus the basic controller from the same dealer (£399 panel + £16 controller):thumb::thumb:

    just hope i'v done the right thing buying a panel thats physically too big for the roof albeit by only 8cm but it's still within the roof area.
    i'm sure it'll be ok as i'm going to fit a small deflector to the roof rail in front of the panel to shove branch's ect away.:thumb:
     
  18. johnsandywhite

    johnsandywhite Read Only Funster

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    :Cool: That should work out great pappajohn. Happy fitting. :Wink:
     
  19. bsb2000

    bsb2000 Read Only Funster

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    Cheers John :thumb:

    Pappajohn, with regards to fitting a larger panel than roofspace permits, it was my intention to fit this one at the rear as that was the only place I had big enough, but as this area was right in front of the ladder access I've opted for the area just behind the Luton 'drop' this means the panel is fitted at a slight angle (about 4" higher at the front) it went in a treat yesterday with Sikaflex & screws, doing the business as we speak.

    ............there is of course the added bonus that if we park up reversed to the South it should be more efficient :RollEyes:

    Hope your 'fit' goes well, it was a tad too hot for me yesterday but only having the one day before coming out again I had to plod on.

    Ian
     
  20. pappajohn

    pappajohn Funster Life Member

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    i looked at the area at the rear but the heki is too far rearwards and if i fit it there, it would only fit crossways, it would look more like a boyracers spoiler :Rofl1::Rofl1::Rofl1:
     
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