Use an electricity bill checklist to confirm the billing period, meter reading (and whether it is estimated), total usage in kWh, daily supply charge and usage rates. Check that any solar feed-in credits, discounts, concessions or payment arrangements have been applied, and note the due date and late-payment terms. Compare your usage with earlier bills and investigate any sudden change, especially after a move or meter replacement. If something looks wrong, contact your retailer and ask for a written explanation or bill review; you can also check your state or territory’s energy advice service.