The Default Market Offer (DMO) is an annual electricity price cap and reference price for standing offers in NSW, South East Queensland, South Australia and the ACT. Its estimated cost varies by location, customer type and the usage assumptions set by the Australian Energy Regulator (AER), and your actual bill depends on how much electricity you use. It is not usually the cheapest deal, so compare market offers and check the DMO reference price on retailer plans. See the AER’s latest published prices for current figures.