Hi Patrik
It seems that the static method miningHelper.GetPowerUsage() doesn't work ?
I'm running asicFW.io firmware and this is what I get.

The line 1,2,3 are for list mode. This is the view in your screenshot.
The last line 1 is for compact mode.
You have customized the compact mode. To view, change the "Miner View" to compact list.