If you're thinking about installing solar panels to generate your own electricity, make sure that the roof you'll be installing them on gets plenty of good sunlight. Good sunlight occurs between 9am and 3pm. You'll generate the most electricity if your roof receives full, exposed sunlight between those hours every day.
When planning your panels, take into consideration the shadows that nearby trees may pass over the area. Solar panels usually need to be mounted high on the roof, in a location that is exposed to the sun for the longest period of time. However, what seems like a great spot may be covered in shade for a certain period of the day.
1800 Watt Solar System for an Off the Grid Cabin.