A power bill usually shows your electricity use in kilowatt-hours (kWh), the price per kWh, daily supply charges, and GST. It may also include discounts, solar feed-in credits, concessions or other retailer charges, so check the bill period and whether the meter reading is estimated or actual. Your tariff and rates depend on your retailer and location, and time-of-use plans can charge different prices at different times. If the bill seems unusually high, compare it with earlier bills, check your retailer’s usage information and contact the retailer; you can also compare plans through Energy Made Easy.