Most tariffs, IIRC, start spanking commercial users as their power factor slides below .80....
Such customers will typically have dual metering mandatory -- 1000A in my area....
When the PoCo sees poor power factor they bill 'em under their tariffs.
You can read the meters, yourself. If the powerfactor drops to .75 -- the prospect is getting dinged, one way or the other.
Inductive loads trigger this, in my area, think air conditioning....loads of magnetic ballasts would perform likewise.
Poor powerfactor triggers major capital expentitures by the PoCo. They have to upsize everything up the line until it is corrected.
