What size conduit and wires are needed for 250A service?

Hire an electrician. Do not install your main service yourself. It must meet code, it must follow many regulations to the letter, it must be inspected, and it must be done my a licenced professional.

You will not save money by trying to do it yourself, and it is illegal. Chances are your power company will not connect service if it is not installed by a licenced professional. More.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.