I see this advertised a lot on Facebook.  I&#x27;m pretty skeptical of this, though.  It attempts to detect energy consumption for particular appliances by the pattern of current load, but I can&#x27;t imagine this being accurate for most people.  Different appliances of the same type will generate very different patterns, and residential power distribution can be _extremely_ noisy.<p>I think it&#x27;s an interesting idea, I just doubt the practicality of it.