Sense looks at fast (sub-second) transitions to detect on and off signatures. That means there are probably 2 good reasons Sense won’t find your rigs.
- You’re probably not powering up and down every few hours or even every day.
- Even if you were doing that, modern power supply on-off transitions are hard to detect since they don’t offer up the same kinds of telltale transition physics-based features that Sense is looking for: Things like phase angle, RC/RL/RLC constants, etc.
You might want to try using some Kasa smart-plugs if you really want to know… I did that for my daughter’s gaming computer a while back, just to see what the load looked like.