I honestly think your being paranoid but cause you use to much electric 1 day doesn’t mean the electric co knows your growing. It raises alarms with them if your average bill is a lot higher for at least a couple months. I use a 1k led and have the filter but my electric only went up $5 a month which isn’t high enough for them to notice
A lot of cheap LED's say 1000 watt but are not really 1000 watts. I would say your LED is around 100-150 watts which is why your bill increased only $5 a month.