The Solar System Is Based On Various Factors Like Grid Type, System Size And Specifications In Built In The System, Customer Electricity Consumption Pattern Etc. During The Field Survey The Engineer Will Calculate Based On The Consumption What Would Be The System Configuration And Also How Many Panels Will Be Installed Base On The Size Of The Rooftop, Shadow Analysis, Design And Google Sketch Layouts Would Be Determined For An Optimal Sized System Which Best Matches The Price For The Customer.