Originally Posted by
m00dawg
Any reason for something so high that I'm missing? If the shed was for carpentry work, I could see the need for power for saws and other woodworking stuff, but I calculated my power needs so far and it's less than half that:
Enlarger: 100W
Lighting: 2-20W
Fridge: 250W
Fan: 10W
Split-AC: 1200-2750W (2750W looks to be start up power, 1200W continual)
Rotary: 10W
That's 3140W which is around 28A. Using an in-wall AC, it drops down to 2390W / 21A.
Definitely more than just running a Romex 12 gauge cable out there but less than half of 60A. The AC, unsurprisingly, uses the most amount of power by far. I'm actually more worried about voltage sag with it than the actual power requirements, since that could change my exposure times without a line conditioner since I use a ColdLight. Hadn't bothered with messing with that since my next timer may have a lux compensation and I plan to switch to LEDs eventually anyway. I'd have room for two enlargers though so I put 100W since my other enlarger still uses an incandescent.
Without the AC and fridge, I'm only at about 140W - easily enough to run an extension cable out (with a GFCI end) to get started for fall/winter darkrooming or to power from a 12V battery with an inverter probably for an entire darkroom session. Doing so could give me several months to save for the AC and electrical costs.
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