Cheap Solar Panels

[Robmac]

Your panel looks higher than normal.
Normally I don’t reckon wind deflectors are required, especially for panels up to 120w.
When you look at the shape of a PVC at the front, most of the air will rise well above the roof ensuring a lower drag coefficient, and better fuel economy.
But even though I have a lot of faith in the adhesive I used, (sikaflex 554) I would have used mechanical fitting for panels that size. The consequences of a solar panel coming of a roof could be serious. But that’s just my opinion.

Wind noise as much as anything Bill.

I won't fit one though until I've driven the van with the panels fitted.

 

[exwindsurfer]

My panels are high as I can tilt them upto about 90% if I wish + I have 6 rivnuts on each fixing + Sikaflex

 

[wildebus]

Your panel looks higher than normal.
Normally I don’t reckon wind deflectors are required, especially for panels up to 120w.
When you look at the shape of a PVC at the front, most of the air will rise well above the roof ensuring a lower drag coefficient, and better fuel economy.
But even though I have a lot of faith in the adhesive I used, (sikaflex 554) I would have used mechanical fitting for panels that size. The consequences of a solar panel coming of a roof could be serious. But that’s just my opinion.

I would concur A panel that size with the lift generated underneath and relying on adhesion to a paint that is know to just peel off by itself... Scary.

I think one of those "Hazardous Load" plates need to be fitted on the rear of the van to warn anyone behind

 

[wildebus]

Dual purpose, leccy and sunshade

Triple purpose ... Rain noise insulator in Winter (and British Summer)

 

[Nabsim]

I would concur A panel that size with the lift generated underneath and relying on adhesion to a paint that is know to just peel off by itself... Scary.

I think one of those "Hazardous Load" plates need to be fitted on the rear of the van to warn anyone behind

Depends on how long the angle used as brackets is.

 

[Robmac]

Triple purpose ... Rain noise insulator in Winter (and British Summer)

Bonus!

 

[exwindsurfer]

I would concur A panel that size with the lift generated underneath and relying on adhesion to a paint that is know to just peel off by itself... Scary.

I think one of those "Hazardous Load" plates need to be fitted on the rear of the van to warn anyone behind

We are not talking about mine van David its on Tompas van

 

[trevskoda]

Yes I will be fitting a wind deflector.

Put it a few inces in front of the panel but not on it as this will then be an aerofoil, dont want the rooskies shooting you down LOL.

 

[Robmac]

Put it a few inces in front of the panel but not on it as this will then be an aerofoil, dont want the rooskies shooting you down LOL.

Yeah that's the plan Trev.

 

[Nabsim]

If I do end up changing to a big panel I will probably get some ally angle, each long side have a meter length bolted to panel but glued to the room then shorter angles on the shorter sides. That would give a lot more stick by surface area than my current panels have

 

[Robmac]

I'm using Wellnuts and Sikaflex on the strut bars, I don't think my plastic roof will take Rivnuts easily. I will have bolts and nuts each end though with steel plate on the inside.

 

[trevskoda]

I'm using Wellnuts and Sikaflex on the strut bars, I don't think my plastic roof will take Rivnuts easily. I will have bolts and nuts each end though with steel plate on the inside.

Use stainless bolts and lock nuts.

 

[Robmac]

Use stainless bolts and lock nuts.

Yeah got them already Trev.

 

[wildebus]

We are not talking about mine van David its on Tompas van

yup, I know You have got yours bolted down

 

[Robmac]

We are not talking about mine van David its on Tompas van

Jim won't mind if it comes off Jeff, it'll probably put paid to that axe murderer who follows him about.

 

[n brown]

selling my 220 watt panel with tracer 20a controller . any interest here ?

 

[oppy]

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