An electricity bill in Cairns can be affected by air-conditioning use, household size, billing estimates, tariff rates and the number of days in the billing period. Check your meter reading, daily usage and tariff details, then ask your retailer whether a different plan or payment option may suit your household; Ergon Energy Queensland supplies the network in Cairns, but retail arrangements can vary. Eligible Queensland households may be able to apply for an electricity rebate, subject to government rules and assessment. Compare current guidance through your retailer and the Queensland Government or energy.gov.au.