54 lines
1.9 KiB
Markdown
54 lines
1.9 KiB
Markdown
---
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title: IoTaWatt
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description: Instructions on how to integrate IoTaWatt into Home Assistant.
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ha_release: 2021.9
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ha_category:
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- Energy
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ha_iot_class: Local Polling
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ha_config_flow: true
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ha_domain: iotawatt
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ha_codeowners:
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- '@gtdiehl'
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- '@jyavenard'
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ha_platforms:
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- sensor
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---
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Integration for the [IoTaWatt](https://www.iotawatt.com/) Open WiFi Electricity Monitor. It
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will collect data from the Current Transformer Clamps (Input CTs) and any Outputs that are defined on the IoTaWatt
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and create them as sensors in Home Assistant.
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{% include integrations/config_flow.md %}
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## Energy management
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You can use the accumulated energy sensors directly with the Home Assistant energy dashboard.
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If you have an energy production system such as solar panels, following these instructions:
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### Configure IoTaWatt
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You will need to configure two new IoTaWatt output sensors:
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| Name | Unit | Formula
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| - | - | -
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| MainsConsumption|Watts|`(Main_In_Red + Main_In_White + Main_In_Blue) max 0`
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| MainsExport|Watts|`((Main_In_Red + Main_In_White + Main_In_Blue) min 0) abs`
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Replace `(Main_In_Red + Main_In_White + Main_In_Blue)` with the correct formula for your main feed.
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#### Using a solar net system
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The IoTaWatt team recommends that the inputs for solar reads positive which can be achieved by either changing the orientation of the CT sensor or in the IoTaWatt's input settings, check `Reverse`.
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Replace `(Main_In_Red + Main_In_White + Main_In_Blue)` with `(Main_In_Red + Main_In_White + Main_In_Blue - Solar)`
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If you have two solar sensors named `Solar1` and `Solar2` you would use:
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`(Main_In_Red + Main_In_White + Main_In_Blue - Solar1 - Solar2)`
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### Configure Energy Management
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In the `Grid Consumption` settings, click `Add Consumption` and select `MainsConsumption.wh Accumulated`
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In the `Return to grid` settings, click `Add Return` and select `MainsExport.wh Accumulated`
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In the `Solar production` settings, click `Add Solar Production` and select `Solar.wh Accumulated`
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