ShogunMan

Only max time left to code

That is correct, set it to -1 if you do not want it to ever buy.

Works fine here   Be sure to select entity: 'tibber:energy_totalcost_xxxxx' under 'use an entity tracking total cost'

Are you sure the consumed energy entity is set to: tibber:energy_consumption_xxxx? It should not read 'monthly' on that entity.

Delete the source, restart HA and add again. Also check that all the Tibber entities are receiving data under integrations->tibber->entities.

Yes, just delete the consumption sensor from the electricity grid. Should not need to reinstall tibber integration as long as you can confirm that all entities are populated with values.

Do the entities contain any data if you inspect them directly? Check that the tibber sensors are receiving data (settings>devices & services>tibber), click on the "1 device" line and you...

Check specifically for the entity "power Örsvängen 3". Do you only have these 5 entities? There should be around 21 entities for this integration.

Well, no wonder it does not work without the proper sensors. This is how it should look:  I would check with Tibber Sweden why the integration does not provide...

This is still an issue in 2023.5.0 The log is filling up with lots of this error for zone 1, 2 and 3. Worked fine in 2023.4.6