How to integrate new energy tariffs and not break historical statistics

Hi friends,

I’m looking for some advise on how best to handle a change to my electricity tariffs.

I just changed my electricity plan from one fixed tariff to a new plan with a peak & offpeak tariff.

My situaiton is this: I have more than 2 years of energy monitoring data for my gird use, solar generation & solar return. When i originally setup energy monitoring i used existing sensors for these 3 values. I didn’t create any utility meter entities because i didn’t think they were needed. The energy dashboard was handling & calculating the correct values from the existing sensors. All working perfectly for the past 2+ years.

However, now that i have transitioned to a new peak/offpeak plan i found some community guides that helped me to prepare for that by creating some new config. I spend time yesterday setting up a new utility meter helper & the associated input helps to track the different tariffs plus an automation to switch the tariffs as the appropriate times.

I added those new utility meter sensors to my energy dashboard & so far its working as expected. I see the different tariffs represented in the dashboard.

Now, obviously, in my dashboard i still have the original sensor plus two additional sensors calculating & showing the engery data. So it’s doubling up now.

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My first thought was to simply remove the original sensor named “Home Energy Consumption Total” from the dashboard. That’s fine for this day forward but as soon as i do that all historical data is instantly gone from the dashboard. All the previous days, weeks, months & years are broken.

My challenge is this: Is there a better/different way i can introduce these new tariffs without losing all history from the dashboard?

Cheers
Nick