A smart meter records electricity use in short intervals and sends readings remotely, so estimated bills and manual meter reads may be reduced. It can support time-of-use or other tariffs, but whether your bill changes depends on your retailer, plan, network and usage patterns—not simply the meter itself. In some circumstances, replacement or installation charges may apply, and rules differ between states and territories. Ask your retailer which meter and tariff you would receive, and check energy.gov.au or your state regulator if you are unsure.