I'm honestly not sure if this exists somewhere else, other than in software like OpenSolar and paid design software that uses the PVWATT API.
So I built a web app that does just that. You can enter as many orientations as desired and get a combined result. It includes the raw data that matches PVWATTS and a simple financial model. You're welcome to use it. https://floridasolardesigngroup.com/pvwatts Jason Szumlanski Principal Solar Designer | Florida Solar Design Group NABCEP Certified Solar Professional (PVIP) Florida State Certified Solar Contractor CVC56956 Florida Certified Electrical Contractor EC13013208
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