There is a common misconception that all solar energy systems are gigantic and take up too much space on a home. The truth is, solar energy are scalable to any size. If you want a large solar array to power your home, you can. You can also choose to use something smaller that will offset normal energy costs from your local power company.
There is really no reason to even consider getting a solar energy system if you live in an area that rarely sees the sun. This does not mean that a less than reputable company will not try to sell you a solar system though. If your roof does not receive at least 6 hours of full sunlight per day, you should not consider solar power.
1800 Watt Solar System for an Off the Grid Cabin.