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Thanks for taking the time to respond. I decided to trust in you guys' knowledge and went with the 2 2 2 4. Besides, I think the guys at the supply house think I'm crazy for even considering upsizing. In the end, you guys with the knowledge and experience that I don't have sound plenty...

So, basically I am down to 2 options: 2-2-2-4 or 2/0-2/0-1-4 for about $.86/ft more ...about $135 more total for the run. 2-2-2-4 might be just right..... 2/0 is definitely more than enough. Any opinions?

I ran across this wire today and I believe it was marked xhhw. Can this be run inside the house with no conduit and be buried in conduit to feed the garage? Is so, it could be worth the extra cost...

The trench is probably around 100' of the run, I was already going to run some in PVC under a deck area, but planned to just direct bury once I got to the area where I could start digging. The house panel is in an unfinished closet in the basement... bare cement wall and open ceiling. I am...

This is the input I need. I'm the type to get a bit overwhelmed by too many choices and want to make the most informed decision I can. Do you guys also suggest burying in conduit although it is direct bury rated? I also have to run it a ways in the drop ceiling of my finished basement. Any...

So the voltage drop calculator shows a 4% drop over 150 ft. at full 100 amp load for #2 aluminum. To get under 3% the load has to be 75 amps. This brings me back to my other thread... would #2 aluminum be sufficient for a hobby workshop or do I need to upsize?

Is there a voltage drop calculator that uses the 75* rating? I've been using the Southwire calculator. Thanks for pointing this out.

pattenp, your are EXACTLY right!!!! I missed that until you said something and I ran outside to take a look. Thanks for figuring that out for me.

Thanks sberry. Your answer helps quite a bit. I think the biggest concern I have is will 2-2-2-4 be enough for my needs running 150 feet? This gives <3% voltage drop at 75 amps. Is the consensus that it'd be next to impossible or at least highly unlikely that I'd ever have any problems with...

Could a splice like this be done right in the panel box?

The run is right around 150' so voltage drop would be over 3% with 2 guage wire... giving more like 75 amps. Real loads would be lights on while running a 220v 15 amp table saw at the same time as a 220v 15 amp dust collector. I may put in a 220v compressor and get a welder some day, but...

Alfred, that pigtail is an interesting idea, but I don't have a crimper. Would another option be splicing to a smaller size inside the box?

Thanks Ace. You suggest burying in conduit even if it is rated for direct burial? I was planning to go to 24" deep on the trench. Also, this wire is OK to run to the panel inside the house, correct?

I'm looking at aluminum wire. Typically the mobile home feeder wire, at least that's what the electrical supply house recommends. They actually only have the option of 2-2-4-6 or 2/0-2/0-2/0-1, but I can find 2-2-2-4 at the home stores and was hoping to find 1/0. If I could find 1 gauge wire...

Aceman, you're right, I had seen that in other posts here. That's why I'm considering going up in wire gauge also.

This is mostly a woodshop, I'll have a table saw and jointer running 240 rated at about 15 amps each. I may install a 240 volt dust collector down the road that would run at the same time and they seem to be less than 15 amps typically. Everything else is 120, but I want to keep my options...

Running 150 feet, the calculators say to use 1/0 to achieve the full 100 amps with less than 3% voltage drop. I am also considering 2-2-2-4 or 2-2-4-6 feeder wire (haven't found 1 or I would be considering that also), but I want to make sure I'm not shorting myself for the future. 2 gauge...

Is there any difference in performance between 2-2-4-6 and 2-2-2-4 when used as feeder wire for a 100 amp service? Cost is 2-2-4-6 for $1.31/ft and 2-2-2-4 for $1.50/ft.

Looking at the lugs, they don't look any smaller than lugs on a 100 amp breaker that will accept 2/0.

I purchased the below main breaker load center and have hung it and been roughing in wire for a new detached garage...