The 2.45 or 3.65 you see is not watts. It is sols per watt. Which means if you are doing 300 sols/s and using 140 watts, your sols/watt is 300/140=2.14.
The idea is that you can optimize your rig to be more power efficient by getting your sols/watt higher even if it lowers you sols/s a bit.
Poof! Mind Blown!
It's Sol Per Watt. Higher is better. duh.
So the console knows and reports Sol's per watt but doesn't report watt usage anywhere?
Interesting.