I've seen lots of discussion about the harmonics and other issues from HID lamps (or more properly, tehir power supplies).
When I was working at an ISP I noticed some very headachey readings when looking at the supply and neutrals for the racks, but we were well below the current ratings so left things as is.
Anyway... I know just enough about this to realize I don't know enough, so I figured I'd better ask a couple of questions even if they sound foolish.
In my residential building complex we've got about 1,000 apartments, and I doubt there's enough usage of CFLs or HIDs or switching power supplies to be a major issue.
However, we have a standalone muliti-story garage, which is illuminated 24 hrs/day by about 35 kw of high pressure sodium luminaires (with another 5 kw or so at night) getting fed via 3 phase AC. There's perhaps one or two addiotional kw of demand for some office equipment and (fluorescent) lighting. And a short occassional kw when opening/closing the garage doors.
This building is separately metered.
If I ask the utilty if the wave forms are screwing up the meter readings, would they laugh me out of the room? Is there any valid issue here?
Thanks.