If you want a daily energy total in Home Assistant, identify what your source sensor measures before adding a Utility Meter helper. Instant watts and cumulative energy are not interchangeable.
Inspect the source over a short interval
Read the unit and watch how the value behaves while a compatible appliance runs. A power reading can rise and fall immediately; a cumulative energy value normally builds over time. Home Assistant documents different handling for delta values and periodically resetting sources. Match that behavior rather than guessing from an entity’s display name.
Validate one full daily cycle
Configure the daily cycle and compare a full day against the source’s start and end values, accounting for any source reset. Home Assistant notes that the first cycle can be incomplete. A partial day is not evidence that you need a new meter. If the available sensor reports only power, verify the energy-conversion path before comparing daily totals.
See the manufacturer’s guidance for current requirements. Related: tapo p110m matter control vs energy view.
