- sum of PSU(unknown) input watts in addition to DC2DC watts, either on ASIC Stats page or main page, as for estimate of power at wall or PSU efficiency <- will implement in 2.6.7. For sp20 I assume 90% efficiency
I think you misunderstood me:the low voltage DC2DC watts are way below (80%) the watts at the PCIE connector inputs in SP20. And the efficiency between the PCIE and the wall is determined by the PSU and should be around 90%.
You did not!!my error!!!

I only saw new name DC-W which I confused with w=wall (which by the way makes no sense as it is AC at the wall).
you new entry "wall watts" matches my PSU and measuring very well!! (y)!