Inverted grid power (produced) option

[henri98]

What type of request is this?

Enhancement to existing card/feature

Existing card or feature name

{"Card" => "Energy"}

Describe the enhancement

Since 2025.12.0, grid power can be configured to energy.

I use slimmelezer, having two power sensors. One for consumed, and one for produced. Both positive numbers. I have history for over two years.

I would like to use this with history for real-time energy insight. However only negative values for produce are supported:

Pick a sensor which measures grid power in either of GW, kW, MW, mW, TW, W. Positive values indicate importing electricity from the grid, negative values indicate exporting electricity to the grid.

Use cases

This would allow me to use positive energy consumed sensors (with history) within the power sources view of the energy dashboard.

Visual examples

Just a toggle switch when selecting the sensor is enough.

Anything else?

Relates to https://github.com/orgs/home-assistant/discussions/1904 and https://github.com/orgs/home-assistant/discussions/1909.

[Destroyer061090]

I got similar request..
home-assistant/core#157962 (comment)