As I see it to recover the cost takes time.
So the first thing you should factor in is your age.
The second is what's your current monthly expenditure for electricity.
I find just with both these you should be able to figure it out.
I'm no youngster and my bill never exceeds $200.
For me it's not worth it in dollars or the head aches that will come with the installation and the cleaning of the panels.
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