Shading on Sanyo HIT240 panels

[SolarCity]

The panels are H series and the diodes work across the panels instead of vertically. This makes the installation look even more dodgy. The diodes will do little to help the shade in this example.

 

[fiardor]

Oh man what a nightmare!

Well looks like i am screwed, my boss doesnt want me to drop the angle from 30 to 10 degrees which is the only option i can come up with as there is no room to make space unless we remove panels.

I think that there must be a stipulation by the client as to how many panels they wanted cos its ridiculous as no one in their right mind could design this and be happy with it.

I will post photos as soon as i can and we can all make faces.

Stay tuned guys, LOL

 

[Earthstore]

Well what a shame, all that money spent on one of the best panels, and learning on this post has to how the diodes work on these panels it is going to produce diddly squat.
Tough call for you, keep your head down but cover your arse, as I am sure this customer will complain when his system produces nothing.
Good Luck

 

[Gavin A]

my thoughts now would be get it commissioned now, then go back and make the changes needed to improve the performance next week / week after.

 

[SolarCity]

What is the distance between the back of one row and the front of another?

To be getting that kind of shading at 11am in early March is shocking. I just hope that the customer hasn't paid yet. Gutted for them.

 

[fiardor]

Panels are 500mm high and its 450mm between panels!!!

My calculation is 750mm minimum between panels so god knows who designed this monsterosity thinking it would be ok.

Will post more photos when i get more time.

But they are truly ****e.
Not happy.

 

[SolarCity]

When I model this in 3D, I don't get a shadow like yours at 11am. Was this this end of Feb when you took the picture?

From my model I have to place the panels far closer to get a shadow like that at 11am.

At 450mm between panels (from front edge to back edge) I get a 15% reduction in yield.

When I move the panels close enough that I get your shadow at 11am on 1st March, I get a........ 47% reduction in yield.