Nordpool does not handle 0 price, becomes unknown

[nilo85]

The problem

I just noticed that when the current or next price from nordpool is exactly 0, the price becomes unknown in HA.

Today 00:00 to 02:00 SE3 has a price of 0 SEK.

I assume 0 is treated as null or something like that, this breaks my follow up calculations and automations.

What version of Home Assistant Core has the issue?

core-2025.1.2

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

Nordpool

Link to integration documentation on our website

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

Diagnostics information

Example YAML snippet

No response

Anything in the logs that might be useful for us?

Nothing related to Nordpool shows up in logs (except my templates depending on it failing), I expect that the 0 value does not cause exception.

Additional information

No response

[nilo85]

config_entry-nordpool-01JEF22MRJQ3J2SAK2XR9M7PYG.json

extracted this file, it shows the raw data is exactly 0.0 as I mentioned:

{ "deliveryStart": "2025-01-13T23:00:00Z", "deliveryEnd": "2025-01-14T00:00:00Z", "entryPerArea": { "SE3": 0.0 } }, { "deliveryStart": "2025-01-14T00:00:00Z", "deliveryEnd": "2025-01-14T01:00:00Z", "entryPerArea": { "SE3": 0.0 } },