For example, if you sign your contract before a roof assessment only to discover that you need to be redesigned before solar installation, your lease agreement should allow you to terminate the contract due to unforeseen additional costs. Sunrun`s leasing and A.A. offerings also contain information about the devices installed on your home. Evaluate the quality of the solar modules and inverters included in your offering to ensure it meets your standards for a 20-year commitment. . . .