Double energy tariff cost tracking inquiry | Home Assistant | Page 1

torn abyss Apr 15, 2025, 11:48 AM

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We are paying double tarrif in our bills.
From 6AM to 10PM the price is higher then the rest of the day. How to track these cost?

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There a 2 price.
From 6AM to 10PM is price A
10PM to 6AM price B

torn abyss Apr 15, 2025, 2:16 PM

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Double energy tariff cost tracking inquiry

heavy plover Apr 15, 2025, 2:38 PM

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You can use a utility meter to create two kWh entities, and add both of them to energy with different fixed prices.
Or you can use the single entity and "use an entity with current price". Then you can make a template that returns a different $/kWh based on time of day. Or make an input_number with the price, and change it every morning/evening with an automation.

Lots of options based on what you're comfortable with.

torn abyss Apr 15, 2025, 3:40 PM

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That means I have to create a helper?

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I don't know where to go to begin. I'm lost

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Oh yeah I see

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But I don't know how to do

torn abyss Apr 15, 2025, 4:17 PM

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I have found this video helpful
https://youtube.com/watch?v=bb5aDtn2wUA

YouTube

Speak to the Geek

Off-Peak Tariffs In Home Assistant's Energy Dashboard

Would you like to keep track of how much energy you're using at peak and off-peak times separately in Home Assistant's Energy Dashboard? This guide will walk you through the whole process. Full article here: https://www.speaktothegeek.co.uk/2023/02/off-peak-tariffs-in-home-assistants-energy-dashboard/

Buy me a coffee:
https://www.buymeacoffee.c...

▶ Play video

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So now I've got 2 entities instead of one

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heavy plover Apr 15, 2025, 4:32 PM

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That's good, right?

torn abyss Apr 15, 2025, 4:33 PM

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I prefer to have a single entity

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If it's possible

heavy plover Apr 15, 2025, 4:34 PM

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You can use a utility meter to create two kWh entities, and add both of them to energy with different fixed prices.
Or you can use the single entity and "use an entity with current price". Then you can make a template that returns a different $/kWh based on time of day. Or make an input_number with the price, and change it every morning/evening with an automation.

I did mention this in my first comment.

torn abyss Apr 15, 2025, 4:35 PM

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Without using automations too. Cause after each upgrade, all automations are gone from the web interface and can take few days to a week to reappear again

heavy plover Apr 15, 2025, 4:35 PM

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Well that's not supposed to happen 🤷

torn abyss Apr 15, 2025, 4:37 PM

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Currently have 1566 lines of automations.

I got informed that i s due to high IO load on the disk

torn abyss Apr 15, 2025, 4:39 PM

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heavy plover > You can use a utility meter to create two kWh entities, and add both of them t...

So, Am I on the right track?

heavy plover Apr 15, 2025, 4:40 PM

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that is the track for if you want two energy sensors

torn abyss Apr 15, 2025, 4:41 PM

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How to do for just one?

heavy plover Apr 15, 2025, 4:41 PM

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You can use a utility meter to create two kWh entities, and add both of them to energy with different fixed prices.
Or you can use the single entity and "use an entity with current price". Then you can make a template that returns a different $/kWh based on time of day. Or make an input_number with the price, and change it every morning/evening with an automation.

torn abyss Apr 15, 2025, 4:41 PM

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Yes But Idk how

spring fractal Apr 15, 2025, 6:54 PM

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something like this should work

torn abyss Apr 16, 2025, 10:51 AM

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spring fractal something like this should work

Thanks!

I don't know where to go to create a template sensor

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okii after a quick ressearch

https://www.home-assistant.io/integrations/template

Home Assistant

Template

Instructions on how to integrate Template Sensors into Home Assistant.

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How I got mine.

HP = Heure pleine = peak
HC = Heure creuse = offpeak

This is how they called

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Aaand done!

Thanks so much @spring fractal 😊

torn abyss Apr 17, 2025, 9:29 AM

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After power outages all prices are gone...

Happened servral times. Blackouts are very short. Enough long to make my pie cool down. Need to heat the oven again.

It's installed on a Raspberry Pi 4 4G.

spring fractal Apr 17, 2025, 9:42 AM

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power outages can cause database corruption

torn abyss Apr 17, 2025, 11:39 AM

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Is it possible to fix that?

spring fractal Apr 17, 2025, 11:45 AM

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not really no, especially not on a pi

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sd cards are notorious for data corruption

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get a UPS for your pi

torn abyss Apr 17, 2025, 11:48 AM

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Shoot!

It was previously installed as a ProxMox VM. Since one of my two servers is down so I needed to migrate my TrueNAS server to the remaining machine.

After that I decided to plug to my UPS.

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It's using a high endurance SD card though

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Just created an automation

spring fractal Apr 17, 2025, 11:58 AM

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Endurance is not resilience

torn abyss Apr 17, 2025, 8:50 PM

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Is there a a way to regenerate the prices? Since the kWh values are there

spring fractal Apr 17, 2025, 8:54 PM

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Maybe it's not generating the statistics because it's missing a property like device class or measurement unit

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Any issues in dev tools -> statistics?

torn abyss Apr 17, 2025, 8:56 PM

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Yesterday the prices are present

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Here from the very beginning

WhatsApp_Image_2025-04-15_at_19.04.55_0edf0e33.jpg

torn abyss Apr 17, 2025, 8:58 PM

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spring fractal Any issues in dev tools -> statistics?

nope

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spring fractal Apr 17, 2025, 9:00 PM

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cost enetity is generated, it will have a name like *_cost

torn abyss Apr 17, 2025, 9:02 PM

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Peak and offpeak cost are handled by this automation

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spring fractal Apr 17, 2025, 9:03 PM

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there is a generated entity which holds the cost statistics, it has a name like <sensor>_cost

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ok good

torn abyss Apr 17, 2025, 9:04 PM

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The issue is here. It's gone

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I mean earlier values before outage are gone

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spring fractal Apr 17, 2025, 9:05 PM

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yeah, that's probably data base corruption then

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otherwise I have no idea. Data doesn't just dissapear except if the database goes corrupt

torn abyss Apr 17, 2025, 9:06 PM

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Is there a way for the system to caculate the prices again?

spring fractal Apr 17, 2025, 9:07 PM

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unfortunately no

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well yeah, besides restoring a backup

torn abyss Apr 17, 2025, 9:07 PM

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I don't unfortunately

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I mean I don't have

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Can't connect to the NAS since I migrated to the Pi

spring fractal Apr 17, 2025, 9:10 PM

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you should make regular, automated backups to the cloud or off from your pi. For example nabu casa, or the google drive backup addon.

torn abyss Apr 17, 2025, 9:11 PM

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Thanks I avoid GAFAM as much as possible

Privacy matters

spring fractal Apr 17, 2025, 9:13 PM

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but it's free and works well

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otherwise use nabu, or your nas

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just dont save backups on your pi because your SD card will die at some point and then it's RIP backups as well

torn abyss Apr 17, 2025, 9:14 PM

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spring fractal just dont save backups on your pi because your SD card will die at some point an...

Thanks I know. Eventhough I have a high endurance card I never do it

torn abyss Apr 17, 2025, 9:14 PM

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spring fractal otherwise use nabu, or your nas

I am already pointing that to my NAS

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unsuccessful

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Have 10 GB of data on it

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Okii. It was due to the share is disabled

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#Double energy tariff cost tracking inquiry