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Wrong prices during the day #233

@handswork

Description

@handswork

Describe the issue

I have noticed after we got over to 15-minutes prices, there is something wrong with the values, and when I use the values together kwh during the day, the total for that day is wrong. compared to the prices I get from "Energi Data Service". "Energi Data Service" is correct from quarter to quarter, also the total for the day.
Also compared to the official meter at the house "Energi Data Service" is correct and "Strømligning" is not.

the start is fx. 00:15 and end is 01:15 for the 0.802734 price.
And even when price should change at 00:15, it do not, it stays at 0.802734 for that hour

Priser i dag

  • start: '2026-01-03T00:00:00+01:00' end: '2026-01-03T01:00:00+01:00' price: 0.757454 - start: '2026-01-03T00:15:00+01:00' end: '2026-01-03T01:15:00+01:00' price: 0.802734 - start: '2026-01-03T00:30:00+01:00' end: '2026-01-03T01:30:00+01:00' price: 0.801147

What version of Home Assistant Core has the issue?

core-2025.12.5

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

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