Grid Tie System is a Solar Energy System That Connected Your Panel To Alternative Source Grid .This set up allows you to Generate Your Own Electricity Distribution
Some key characteristics of it Are
1.No DC battery bank will be required
2.Lower Upfront Cost
3.Dependent on Alternative Grid Availability
4.It Can Actually Sells Mass Energy Back To The Grid
Off-grid System
An off-grid System is a Standalone That Operate Independently Of The Electrical Grid .This System is designed to Operate With Battery Bank Required To Stores Excess Energy Produced by Solar Panel For Later Use
The key Characteristics
1.Higher Performance Upfront Cost
2.No Alternative Grid Source Connected to it All
3.Battery Bank Will be Required So that The System Will be able To Work and Operate Independently 
