Check the electricity meter

If you do not trust your domestic electricity meter correctly, you can test the result with a simple method.

Connect a commercially available energy meter to a larger consumer, stove, washing machine or similar (not refrigerator). The devices are started and after some time about 20 minutes or longer, the consumption is compared in both meters.

The longer the more accurate.

Of course, no other consumers may be active during this time.

Reading a Digital Electric Meter & Calculate Usage and Cost | March 2024