Also : wind needs a large prop , and the output needs to be controled with pricey electronics . If you are capable of doing the installation yourself
(the panels can literaly be "spliced" in at the box) then you can save up to half of the total cost . The major pieces of equipment are the inverter
that changes the DC current from the panel to AC , And an interconnect shutoff wich prohibits you from putting power into the grid when it goes down .
You cant' put juice into a line that the utility might be working on , so when the grid goes down you either are independent when the sun is shining
, or living off your own stored battery pack . My prof had access to tons of batteries at auto school , so his reserve pack was cheap . If you can do
without it that will save tons .(and batteries create hydrogen when they are charging , very explosive , and they need venting with no electric sparks
created when the fans go on , kinda tricky but he pulled it off .)It can work under the right circumstances , and pay off quick . You just need to do
as much labor as possible yourself.




