What is the solar output adjustment?
The solar output adjustment is meant to account for less than perfect solar installations. In the real world, a solar system is typically mounted on your roof and your roof may not point directly south and may not have the perfect angle. Solar systems deliver the highest performance when facing directly south and at a specific tilt and, of course, are entirely free of shading throughout the day. Also, few installations are completely free of shading throughout the day. Renewzle uses a solar output adjustment value of 20%, meaning that all of the financial and environmental calculations assume that your system will produce 20% less power than if everything were perfect. That’s a pretty good number that is typically of what most people see in the real world. If you want to tune your estimate up a little, click here for some guidelines on coming up with a more accurate estimate. Also, keep in mind that a solar contractor will come to your house and do a careful site evaluation before you
