General Algebraic Modeling System

This project use GAMS (General Algebraic Modeling System) to optimize the output of the input, for now, I have the following point and I want to add more to it: I have a GAMS project where the graph of solar power VS Time also have the Diesel generator VS Time: SP + DG = charge a car

also, I have a power grid combined with Diesel generator and the solar power to have a car to be charged : (DG or GP) + SP = Charge a car


I want to add a battery BT so we have a mix of Desile generator, battery, solar power, and Power Grid to have the power to charge the car at any time of the day