Checklist

• I have updated to the latest available Home Assistant version.
• I have cleared the cache of my browser.
• I have tried a different browser to see if it is related to my browser.
• I have tried reproducing the issue in safe mode to rule out problems with unsupported custom resources.

Describe the issue you are experiencing

The energy distribution card does short format large numbers, but not small numbers.
On a small system, especially in day-view, values can be too small to be displayed in kWh.

Describe the behavior you expected

Short format energy numbers smaller than 1kWh to Wh.

Steps to reproduce the issue

...

What version of Home Assistant Core has the issue?

2025.6.1

What was the last working version of Home Assistant Core?

No response

In which browser are you experiencing the issue?

No response

Which operating system are you using to run this browser?

No response

State of relevant entities

Problem-relevant frontend configuration

JavaScript errors shown in your browser console/inspector

Additional information