A high Perth electricity bill can result from increased usage, seasonal heating or cooling, a longer billing period, an estimated meter reading or changes to your tariff or concessions. Check the bill’s usage in kilowatt-hours, compare it with previous bills and confirm the meter reading where possible. Most Perth homes are supplied through Synergy, so contact your retailer if the reading or charges look incorrect, or ask about payment arrangements and available concessions. You can also compare practical ways to reduce usage through energy.gov.au, while eligibility for government assistance depends on your circumstances and the relevant department’s decision.