| energy make sure you do not use metal halite (bad color yellow color temperature) or HID light sources (bulbs don't last long and are expensive). High efficiency T8's are the way to go. We buy the lights from a wholesaler, very efficient and have a full mirror reflector to boost light performance. They have a 6' chord so they are considered a "portable" light fixture so all you have to do is mount a socket receptacle in the general area where you want the light. Make sure you tie in the light switch near the door. Using the beaker to turn off the lights can be a bad thing if the door is far away with expensive and heavy things to injure yourself on. Ceiling fans are a must. In that space I suggest at lest 2 for good air flow. It also allows you to use a smaller gas heater to heat the air space. We currently heat a 100'x80'x22' hanger with only one 220,000 btu heater in Wisconsin. Make sure you tie in the heater with the main door so the heater does not stay on when the door is open to save energy. Some other considerations for electrical.
1) Welder 220VAC single phase or 240VAC three phase if available.
2) 220VAC for air compressor. That could take at least two spots on the panel.
3) Additional lighting
4) gas heater electrical
5) water heater
6) separate beaker for a vehicle lift If you need a deal on electrical supplies my wife works for an electrical distributor company that can give you good deals on panels, breakers, etc. If you are interested send me an email for contact information. About the floors. Please use a urethane coating. Epoxy coatings do not last in shop or manufacturing environments. A clear coating can take the abuse and still look good for years. We did that to our 85,000 ft^2 plastics factory I work at. They can polish the clear to make it easy to sweep clean and is excellent for oil spills (no stains). In a work environment, anything pretty does not last, period :)
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