posted on Sep, 18 2008 @ 12:51 PM
The skid mounted building is a portable generator. Propane powered and probably around 500KW in size. Air intakes are just that. Reason they are
placed off ground is to keep dirt at minimum. One closet to ground going into the building will be the air supply for the building and motor, higher
outlet one will be building exhaust only. Motor exhaust goes through roof, looks like 6 inch pipe or so with a counter balanced lid that is normally
shut. You can see it in the far view of the buildings shown.
Why isn't this underground ventilation stuff. The duct work is way too small. Look for duct work in excess of 6 feet round or 5x5 square at the
minimum for anything that is working underground. Skid mounted also a dead give-away.
As was pointed out by a very observant viewer. One transformer on the pole means single phase power. Any ventilation or AC equipment will be 3 phase,
3 transformers on a pole. So something there is requiring a single phase power supply.
Which brings in question now on the other building. It's possible that this would be some switch gear for supplying power to something else. I've
seen and been in "portable" substations that look very much like this. Without see the wiring going into the structure or just the conduit holding
the wires, I'd refrain from making a call.
If I was going to make a guess from just looking at what I see. I'd say the single phase power supply is used as a sample of power, controlling the
generator controls. If the power goes dead, the generator kicks in and transfers power to the switchgear station next to it. It's like a very large
UPS for something in the area.
I'd also venture a guess that the 110 power supplies power to an entry alarm system that is connected to a simple telephone line. You might want to
count lines on the pole.