The Default Market Offer (DMO) is a government reference price for electricity in some parts of Australia, designed to make retailer offers easier to compare. A default market offer guide can explain the reference price, annual cost estimates and how discounts, usage rates and supply charges affect your bill. The DMO is not always the cheapest option, and your actual cost depends on your household’s usage and the plan’s terms. Check the retailer’s fact sheet and compare offers through Energy Made Easy or your state or territory’s official comparison service.