We always assess the condition of your roof at the initial site assessment. However, if your roof is suitable for solar but later needs to be replaced through an insurance claim the cost of  removal/reinstall can be included as part of the claim. 

"Production" is the total amount of energy that your system produces. Some of this energy will be used to power your home. The rest of it, or the "surplus" is sent back to the grid.

Utilities like CPS Energy and PEC have net metering programs that credit you for the "surplus" energy you send back to the grid. Each billing cycle, you are only charged for "net" kWh used: energy pulled from the grid - solar surplus. If your solar surplus is more than what you pulled from the grid, you will see a $ amount credit that rolls over to the next billing cycle.