I am considering getting 220V in my shop. My electrical panel is mounted on the rear of the house. My shop is about 30 to 40 feet away from the panel. There is a feed (underground) into the garage. This feeds the four electrical outlets. It also powers four tube lights.
I think it was Darren or Jim who suggested having a sub-panel. I don't know anything about the electrical stuff and I will hire an electrician to do the job.
I am not sure how to begin to plan this. I guess I need to calculate the Amps that the machines will draw. Right? But, right now, I don't have any big tools. I hope to acquire a cabinet saw, bigger lathe (maybe Mustard), 18" band saw, drill press, dust collector in the future.
What is the significance of having a sub-panel?
What else do I need to consider to plan this?
Could you give me a rough idea of the cost?
Thanks in advance for your ideas and suggestions.