Intro: A sudden jump in your energy bill usually has a simple cause.
1. Seasonal changes
Heating and hot water spike costs.
2. Estimated readings
If you haven’t submitted readings, you may be overcharged.
3. Old appliances
Older fridges and freezers use more power.
4. Standby devices
TVs, consoles, and routers add up.
5. When to check for errors
If the bill doubles with no reason, contact your supplier.
Summary: Most high bills come from seasonal use or estimated readings.