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[GH-ISSUE #380] Day ahead electricity price shows "nan" instad of current price per kWh #1884

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opened 2026-03-20 20:07:04 +01:00 by sascha_hemi · 4 comments
sascha_hemi commented 2026-03-20 20:07:04 +01:00
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Originally created by @mountaindude on GitHub (Oct 6, 2024).
Original GitHub issue: https://github.com/OpenEPaperLink/OpenEPaperLink/issues/380

Originally assigned to: @nlimper on GitHub.

Describe the bug
Instead of showing current cost/kWh, the display shows "nan/kWh"
The bar chart updates correctly, so it seems data is received from the source, but the current value is no longer calculated correctly.
The vertical line indicating "now" is also missing.

image

To Reproduce
image

C6 chip updated to latest version.
Tag type definitions updated.

Expected behavior
Up until a week or two ago the correct, current price was shown in the display.

Additional context
I would guess the issue occurs here somewhere.

Originally created by @mountaindude on GitHub (Oct 6, 2024). Original GitHub issue: https://github.com/OpenEPaperLink/OpenEPaperLink/issues/380 Originally assigned to: @nlimper on GitHub. **Describe the bug** Instead of showing current cost/kWh, the display shows "nan/kWh" The bar chart updates correctly, so it seems data is received from the source, but the current value is no longer calculated correctly. The vertical line indicating "now" is also missing. <img width="400" alt="image" src="https://github.com/user-attachments/assets/c75e55d2-381c-4418-90a8-c6f956be1662"> **To Reproduce** <img width="375" alt="image" src="https://github.com/user-attachments/assets/b8b1bc67-0883-4316-b18c-ae80d7416fdc"> C6 chip updated to latest version. Tag type definitions updated. **Expected behavior** Up until a week or two ago the correct, current price was shown in the display. **Additional context** I would guess the issue occurs [here](https://github.com/OpenEPaperLink/OpenEPaperLink/blob/8986967a4d364618c979a3636ecea44a21dd8df5/ESP32_AP-Flasher/src/contentmanager.cpp#L1575) somewhere.
sascha_hemi added the bug label 2026-03-20 20:07:04 +01:00
sascha_hemi commented 2026-03-20 20:07:04 +01:00
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@nlimper commented on GitHub (Oct 6, 2024):

Thanks for your report. The upstream API provider (ENTSOE) has unexpectedly migrated their transparancy platform to a new server (https://transparency.entsoe.eu/news/widget?id=66e3ecae61d4cd1be808f94d). I haven't found the new API entry point, will dive into it in the next few days. When fixed, your display will start working again without intervention. Please stand by. :-)

<!-- gh-comment-id:2395352470 --> @nlimper commented on GitHub (Oct 6, 2024): Thanks for your report. The upstream API provider (ENTSOE) has unexpectedly migrated their transparancy platform to a new server (https://transparency.entsoe.eu/news/widget?id=66e3ecae61d4cd1be808f94d). I haven't found the new API entry point, will dive into it in the next few days. When fixed, your display will start working again without intervention. Please stand by. :-)
sascha_hemi commented 2026-03-20 20:07:05 +01:00
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@AseKarlsson commented on GitHub (Oct 6, 2024):

Thanks @nlimper!

<!-- gh-comment-id:2395499869 --> @AseKarlsson commented on GitHub (Oct 6, 2024): Thanks @nlimper!
sascha_hemi commented 2026-03-20 20:07:05 +01:00
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@nlimper commented on GitHub (Oct 28, 2024):

After a few days, the error solved itself, probably after ENTSOE debugged their migration.
Can you confirm it's also working again for you? (if not, please tell me which country)

<!-- gh-comment-id:2441176174 --> @nlimper commented on GitHub (Oct 28, 2024): After a few days, the error solved itself, probably after ENTSOE debugged their migration. Can you confirm it's also working again for you? (if not, please tell me which country)
sascha_hemi commented 2026-03-20 20:07:05 +01:00
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@mountaindude commented on GitHub (Oct 28, 2024):

Yup, works here in Sweden.
That was a convenient solution, things fixing themselves :)

<!-- gh-comment-id:2441241153 --> @mountaindude commented on GitHub (Oct 28, 2024): Yup, works here in Sweden. That was a convenient solution, things fixing themselves :)
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Reference: starred/OpenEPaperLink#1884
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