integration platform provides the Riemann sum of the values provided by a source sensor. The Riemann sum is an approximation of an integral by a finite sum. The integration sensors is updated upon changes of the source. Fast sampling source sensors provide better results. In this implementation, the default is the Trapezoidal method, but Left and Right methods can optionally be used.
To enable Integration Sensor in your installation, add the following to your
# Example configuration.yaml entry sensor: - platform: integration source: sensor.current_power
Round the calculated integration value to at most N decimal places.
Metric unit to prefix the integration result. Available units are
SI unit of time to integrate over. Available units are
In case you have an appliance which produces spikey consumption (like an on/off electrical boiler) you should opt for the
left method to get accurate readings.
The unit of
source together with
unit_time is used to generate a unit for the integral product (e.g. a source in
W with prefix
k and time
h would result in
kWh). You can override this behavior by providing a custom value for
unit. Note that
unit_time are also relevant to the Riemann sum calculation. Even if you provide a custom value for
unit, ensure prefix and time accurately reflect the properties of your source data.
integration sensor is quite useful in energy billing scenarios since energy is generally billed in kWh and many sensors provide power in W (Watts).
If you have a sensor that provides you with power readings in Watts (uses W as
unit_of_measurement), then you can use the
integration sensor to track how much energy is being spent. Take the next configuration as an example:
sensor: - platform: integration source: sensor.current_power name: energy_spent unit_prefix: k round: 2
This configuration will provide you with
sensor.energy_spent who will have your energy in kWh.