I replaced the existing 150 amp main breaker panel with a new 150 amp main breaker panel, installed a whole house surge protector in the panel, and labeled the new panel. I installed a grounding system with 2 ground rods (behind bushes on the left side of the garage) and bonded ground rods to new panel. I bonded both sides of the copper water line at PRV to the panel. I bonded hot water and cold water copper at the water heater.