Energy comparison means checking plans from different retailers against your household’s actual usage, rather than choosing on the advertised discount alone. Start with a recent bill and compare the usage rates, daily supply charge, contract terms, fees, estimated annual cost and any conditional discounts. Entering your National Metering Identifier (NMI) or gas connection details into an accredited comparison service can help show plans available at your address. Prices and availability vary by location and circumstances, so confirm the offer and contract directly with the retailer before switching.