My home uses an average of 2400 kW per month (28,800 per year.) How much can I expect it to cost to install solar panels of this amount?(It is not my intention to go off of the electric company’s grid. I would like to generate what I can / possibly sell back extra power)What “hidden” costs are there?What is the average life of them?What is the “best” (cost effective and green) solution / apc;?apho(BTW…r. I am in southern LA if that makes a difference)Best answer will go to clear answer WITH links/resources to back it up!)THANKS A MILLION!!! I hope you have a safe and happy holiday season!!!