i installed a 100 amp sub panel and ran a 50 amp circuit from main electrical panel to feed sub panel I removed 2 multi feed 15 amp circuits from main electrical panel and installed them in the sub panel to make room I then separated all the grounds and neutrals in the main electrical panel per request of the national electric code I ran a 50 amp car charger circuit from main electrical panel and installed it on the back wall in the garage with pvc pipe to protect the wire I removed 2 single pole 20 amp breakers feeding a multi feed and installed a 2 pole 20 amp breaker I installed two ground rods outside and ran a ground wire from one to the other then into the main electrical panel I removed the rusted water clamp on the cold water entrance from a existing ground wire and installed a new clamp and two more clamps and ran a ground wire from above the water meter to below the meter I also bonded the home at the water heater I installed a ultra whole home surge protector 1 year warr