i just called my power company yesterday to ask what they would charge me if i wanted to upgrade my 100amp box to a 200amp. told them i would installe the box and make connections. this is what they said, we will come out and put up a new meter box for free but would charge me to connect to the breaker box. They never mentioned anything about changing anything other than the meter box, no wiring from the pole. and my house was built in 1965.