200' Voltage Drop

[DannyBoiii]

I have a new underground service coming up in the near future with 100' from pole to meter and about another 100' from meter to panel.
I've done voltage drop calculations using 200' for distance, AL conductors, and 150a (worst case scenario). I'm getting 3/0 for minimum requirement (I know I have to use atleast 4/0 for 200a service).
I'm just looking for real world stories from other electricians on what they have experienced for voltage drop.
I've personally seen a 500' underground run for (5) street lights all drawing about 1.5a being fed with 10 AWG, voltage at the panel was 123v and voltage at the end of the 500' run was 123v with all lights on.
If you do calculations for this it would come out to minimum 6AWG. I'm skeptical on voltage drop and calculations because of this but wanted to hear from others on what they have experienced.

 

[augie47]

Step 1 would be a realistic load calculation. Use that number as opposed to service size.

 

[electrofelon]

I use about 70 amps for a residential VD calc. Typically I won't even run numbers or use over 4/0 until the length is around 300'.

 

[Sberry]

I have seen a lot of long runs do just fine, most of the shirtail speculation is way off and totally wrong and all worst case at every turn. Service is hot anymore.