# Calculate energy used - Ebeco

**URL:** <https://community.homey.app/t/calculate-energy-used-ebeco/134339>\
**Category:** Flows\
**Created:** [April 9, 2025, 11:10am UTC](https://community.homey.app/t/calculate-energy-used-ebeco/134339 "2025-04-09T11:10:19Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Daniel77](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/daniel77/32/80637_2.png) [@Daniel77](https://community.homey.app/u/Daniel77)\
**Post date:** [April 9, 2025, 11:10am UTC](https://community.homey.app/t/calculate-energy-used-ebeco/134339/1 "2025-04-09T11:10:19Z")

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I have a Ebeco EB500 floor heating control unit.  
It does not have a built in energy meter but I can read out the power (a constant set in the Ebeco app - installed power).  
In my case it´s 525w installed so in Homey it switch between 0,5w and 525w (off/on).

Can I somehow calculate the energy used and visualize it in Homey.  
Tried PBTH but it didn´t work.  
Would also be nice if I could visualize it a graph (like insights)?

It should be easy since it´s just time \* power but how do I solve it?

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**Author:** ![JohanP](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/johanp/32/119002_2.png) [@JohanP](https://community.homey.app/u/JohanP)\
**Post date:** [April 9, 2025, 11:56am UTC](https://community.homey.app/t/calculate-energy-used-ebeco/134339/2 "2025-04-09T11:56:16Z")

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It would be a lot easyer to put a energy meter in between. If you calculate, you’ll probably going to miss a lot. IE when network goes down, Homey is down/rebooting/unplugged.

For a 525W device you can even use a smart plug…

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<div class="post-metadata">

**Author:** ![Daniel77](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/daniel77/32/80637_2.png) [@Daniel77](https://community.homey.app/u/Daniel77)\
**Post date:** [April 9, 2025, 12:56pm UTC](https://community.homey.app/t/calculate-energy-used-ebeco/134339/3 "2025-04-09T12:56:46Z")

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I thought about that to but it would have been nice to use what I have.  
And also learn if and how to do it if it´s possible.

But maybe I end up with a fibaro between instead.

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**Author:** ![Rmb](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rmb/32/79135_2.png) [@Rmb](https://community.homey.app/u/Rmb)\
**Post date:** [April 9, 2025, 10:30pm UTC](https://community.homey.app/t/calculate-energy-used-ebeco/134339/4 "2025-04-09T22:30:26Z")

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Create a PBTH Virtual\_via\_flow with a kWh numberfield and a script to update this field like:

 ![IMG_3841](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/b/a/bafc9b58cca6af2f4f9af5e3794b7da6318a37d8.jpeg)  
Check in the PBTH kWh number field the Insight box.