Description
Feedback
Statement in Home Assistant regarding FAQ the Energy Dashboard and home energy management:
" 547B Therefore, Energy (kilowatt-hour) is not an average of the Power you are consuming over a given period of time (the unit of the average power would be Watt or kilowatt again). Energy is the integral (mathematical operation) of the Power function."
This explanation is highly misleading, and some parts are outright incorrect:
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A kilowatt-hour (kWh) is an exact measure of electric energy, not power. One kWh represents the energy consumed when 1 kilowatt (kW) of power is used continuously for one hour. It is not an average, but rather the total quantity of electric energy consumed.
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The integral method using Riemann sums can, under the right circumstances, provide an somewhat accurate calculation of energy, but only for continuous data of power and time. For scenarios with sparse data and distinct on/off changes in power consumption, methods like Piecewise Linear Approximation are far more suitable.
URL
https://www.home-assistant.io/docs/energy/faq/
Version
2024.12.1
Additional information
No response