i dont think they will bother here in denmark where i live and grow
the electric bill also is included like yours
and we have a record studio with all thinkable mixers and sound divices, a bunch of spiders and other exotic critters with heat mats and lights and a grow room with 400-600w lights the fan and all other normal things like pc,
ps3, tv, dvd so the disc spins out off control every day all year never had enyone stickin there nose in it yet.
but you could steel elctrics from some one next door i now some even changes the setups in there electric meter so it dosent show what you use fore grow and stuff
its somthing wit a cable they pull out and fix betven the meterbox in there home and the electric transformer outside
it is dangerus and highly risci so you should not try this by yourself, but get some one that knows about highpower electricity.
good grow