I live in a 3 bedroom home in Hamilton, family of ...

I live in a 3 bedroom home in Hamilton, family of 4, running dishwasher twice a day, hot water cylinder,washing machine, dryer, fridge, TV, computers etc...and pay $180/month. In Ohakune, our bach is running 1 fridge, hot water cylinder turned off...pay $140/month, electricity part is $35! How can this be right? Similar scheme to what the Mafia ran!