Compare the estimated annual cost using your actual electricity or gas usage, not just the advertised discount. Check the usage rates, daily supply charge, tariff type, contract terms, exit fees and any conditions attached to discounts or credits. If you have solar, a controlled-load meter or an electric vehicle, make sure the plan’s rates suit how and when you use energy. You can compare available offers through the government’s Energy Made Easy website, or Victoria’s Victorian Energy Compare, then confirm the details with the retailer before switching.