How expensive are solar panel?
Answers: cheap
It is not the cost of the panel that will get you but instead where on earth you live, how much sun get you get hold of, and how much electricity you need! But today there are panel out there that cost per the wattage you inevitability and they are down to $2 to $5 per watt... look around and you will see a huge difference in price and most significant - add within the shipping and installation costs if there is no solar company close by you!