Does your shop have electricity already and if so, does it have a panel box in it? If it does then chances are it already has 220. If not then you will need to come from the house box with new electric to get 220 out there. Code varies in different places. I would really check with a local electric expert to see what you really need. An electrical supply house would be helpful and will hook you up with all you need to run the proper wiring. If you have never messed with electricity before then I would get someone knowledgeable to do it. Electricity bites hard and the fire can be even worse.