I run about 2400 watts and have for years and years. My electric bill is never more than $160 due to the cheapest electric rates in the US here. I run 2 flowering chambers, when one turns off the other one turns on, constant 24 hour power needs for flowering.
FYI The Police cannot use FLIR on your home without first getting a warrant, electrical usage is not enough for a Judge to issue a warrant. Imagine if the cops busted d own your door and found that you were growing TOMATOES, you could then have a very easily won legal battle with the police and the judge issuing the warrant would have major egg on his face, hell he would probably get reprimanded.
The things that will get you caught are stealing excessive power, selling poundage out your back door to strangers, having a fire or some other incident that requires officials to come to your house, pissing off a girlfriend who knows you grow. Loose lips sink ships. If the police ever come to your house DO NOT let them inside, go outside to talk to them.
Anything under 10,000 watts is but a blip to the power company, as long as you pay your bill on time they don't give a shit.