If You’ve narrowed down your listing of prospective solar installers, make sure you talk to who'll put in the system: their very own crew, or subcontractors. A lease has a fixed regular monthly payment. A PPA rates a set rate per kilowatt-hour, so payments could vary with seasonal solar output. https://www.americanarraysolar.com/complete-guide-to-undergo-a-residential-solar-installation-berkeley/