How much space do I need on my roof?
How much space do I need on my roof? Solarize Project
In Oregon, a good rule of thumb is that 1,000 watts of solar electric panels require about 100 square-feet of space and will typically produce 1,000-1,300 kWh of electricity each year. If you double or triple the size of the system, you will double or triple the amount of electricity it produces.