100 amp to 200 amp upgrade

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tonyscrow

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Location
Michigan
Occupation
electrician
Hello,

I was wondering if anyone could tell me how far I can run service to a new breaker panel? I have an existing 100 amp panel in the basement. The basement ceiling height is 6ft. where the panel is located. It's a Michigan basement, so one end is 5 ft. and the other is 6 ft. I'm in the middle of adding on a home addition next to the present home. Present home is 800 sq. ft. The new addition is 1200 sq. ft. on a basement with 8.5 ft. ceiling height. So, it will be a total of 2000 sq. ft.. I'm wanting to swap the 100 amp panel out and place the 200 amp panel in its place and run new circuits to the new addition. I'm not sure I'll have the 4ft. from the floor to the bottom of the new breaker panel though, in the old basement? The existing 100 amp service is on a pole with the meter and a 100 amp breaker/disconnect box, which is ran underground into the basement via conduit. I'm planning on removing the pole and mounting the new meter base and 200 amp breaker on the outside wall of the home. (the existing pole is in the way of getting around the house). Plus, my next door neighbor is a foreman for the local energy company and he suggested the placement of the meter base and 200 amp breaker/disconnect box on the outside of home. (since it's closer to their pole) From the new 200 amp breaker/disconnect box, how far can I run service wire in the old basement over too the new basement? (approx. 42ft.) Plus, if able, what to do with the existing circuits in the 100 amp panel? Subpanel or work box tying old circuits to new wire?

Thank you,
Tony
 
add 200 A fused disconnect outside on wall of house. run new service conductors there. put N-G bond there and run GEC there.

run 100 A feeder from new disconnect to old panelboard. leave circuits alone. probably have to separate N-G bond at old panelboard.

run another 100 A feeder from new disconnect to a new panelboard in new addition for circuits there.
 
add 200 A fused disconnect outside on wall of house. run new service conductors there. put N-G bond there and run GEC there.

run 100 A feeder from new disconnect to old panelboard. leave circuits alone. probably have to separate N-G bond at old panelboard.

run another 100 A feeder from new disconnect to a new panelboard in new addition for circuits there.
Thank you for the reply. That sounds a lot easier than all the other work involved. I was brain dead or brain locked I guess? I did a 300 (200/100) amp service like this 13 years ago for a house and garage.
 
add 200 A fused disconnect outside on wall of house. run new service conductors there. put N-G bond there and run GEC there.

run 100 A feeder from new disconnect to old panelboard. leave circuits alone. probably have to separate N-G bond at old panelboard.

run another 100 A feeder from new disconnect to a new panelboard in new addition for circuits there.
If it has a N-G bond that gets removed and if there is a stove or oven or dryer on a 3 wire circuit it will need to be change to a 4 wire circuit.
 
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