Forum Post: 800VA Pure Sine Wave Inverter's ref. design - If I follow this design 100% same, does it work?

Hello, I want to ask if I follow the design, does it work 100%? let us say I manage to code the microcontroller properly. and if I want to increase the VA from 800VA to 3000VA, what should I do to the circuit? Just I need to add more FETs ? thanks alot.