Here’s a few reasons why your bill might be higher than normal:
A full house – you’re at home more often or have extra people in the house like a new baby or family staying
Change in season – cold/warm weather means you’ve been cranking up the heating or air con
Something’s broken – is an appliance faulty or your hot water cylinder leaking?
A new appliance – you’re the proud owner of a new power-hungry appliance
Other bill changes – your recent bills have been estimated or cover a longer period than usual
You can keep track of how much you’re spending in My Account. As long you have a smart meter, your usage graph shows in both dollars and kilowatt hours how much energy you’re using.