todd1010
He’s also installing a new 8’ ground rod specifically for the sub panel. He mentioned he would use a insulated wire for that. Which would go from the ground rod to the sub panel and then (I think) to each 20amp outlet.You probably misunderstood your electrician because what you describe doesn't satisfy NEC. You need to have all the grounds bonded together at the main panel only where they connect to the utility's ground and your safety ground rods. Having a separate ground rod for a subpanel is hazardous because a fault won't trip the breaker. All grounds and neutrals tie together at the main panel and at the main panel only.