Adelaide electricity bills can rise with higher usage, seasonal heating or cooling, a rate change, or estimated meter readings. Check your bill for the daily supply charge, usage rate, billing period and whether the reading is actual or estimated. You can compare available South Australian plans using the Australian Government’s Energy Made Easy website, then confirm rates, fees and contract terms with the retailer. If you hold an eligible concession card, check whether you qualify for the South Australian energy concession through the relevant government service.