Any reason NOT to use a 15A versus 10A solar controller?

[Ace!]

I only need a 10A solar controller, but may add an additional panel or two in the future. Is there anything about using a 15A controller with a smaller panel (or set of panels) until I go bigger?

 

[billharr]

I have one 100w panel and run a 30 amp controller. Room to grow, going to add a 100w panel if one goes on sale black Friday..

 

[DrJ]

Should be no problem to use a bigger solar controller.
The cost of the larger one is usually more, but if you plan on adding more panels in the future may make it worth it.

 

[Ace!]

Perfect. Thanks.

 

[LookyLou]

I have one 100w panel and run a 30 amp controller. Room to grow, going to add a 100w panel if one goes on sale black Friday..

I did the same thing, room for expansion.

 

[Casa Escarlata Robles Too]

Good info.
As a side note.
I am sure all know this but all solar controllers aren't NEGATIVE ground.
When you order one make sure you get the right one.
Frank