Start with your latest bill and compare the estimated annual cost, usage rates and daily supply charge—not just the advertised discount. Check whether discounts depend on paying on time, direct debit or choosing a particular billing method, and look for contract terms, price changes and exit fees. Compare available plans through your state or territory’s official government comparison tool, such as Energy Made Easy or Victorian Energy Compare. If your circumstances have changed, ask retailers about hardship support or payment options before switching.