I know there's different brands of solar panels and they cost different amounts.But if anyone know the average price of one solar panel could you help me out?Also could you please list the size of the solar panel.
Hard to answer, it really varies. A rooftop electric panel will typically be about 200 watts or so, and an installation would have many of them. Here's an example: Suntech STP 200 These Modules Provide: 200 Watts VOC 33.40V VMP 26.20V ISC 8.2amp IMP 7.63amp Width Height Deep 39 58 3/8 3/8 $488.00
Solar panels come in all sizes, from one that is in your calculator to 0 or 20 feet on a side. link has several examples with size and power. if you want more, search google for buy solar panel 00w or 200w or 50w to get a list with prices. .