Re-usable template not working - with negative numbers? about nordpool HOT 2 OPEN

I have no idea what you’re trying to do there. But generally keep the template as simple as possible. Verify that a simple example works before you increase the complexity. Remember that now() is patched as always refer to the current hours what ever that may be.

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End goal is to have a re-usable template where many people can contribute to to keep updated with never ending changes in tariffs.
The re-usable template is deployed/updated through HACS so we can lower threshold to keep tariffs updated for everyone.

So the template rely on some input and now() for hour/date/month and current_price to calculate vat/subsidy etc

So if I try to add just the transport cost it works fine through the entire day and changed with tarrif changes
But if I try calculate the price including subsidies the calculation goes bananas.

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