The mistake we all make (IMHO) looking at these signatures is beginning by assuming that because the Sense algorithm has decided it’s a “device” doesn’t mean necessarily that that signature is coming only from separate device and represents the entire device usage. It could be a component of a more complex and larger wattage device.
For the most part it looks like a fridge/freezer signature as @samwooly1 suggested.
Have you tried killing power to your fridges/freezers briefly while watching the device power meter?
Also, it seems to be similar to the general usage of my fridge (38W with spikes at 150W).
My fridge I think is misbehaving and running longer than it should be … I just posted a thread about it here.