what time you get up, easy one ==- when the power starts kicking in
when you go to work and return,== same as above
how many people are in your house === how much is being used
the sex of the people in your house, ===women using hairdryers straighteners which will have their own power usage signature.
what you watch on tv,=== based of when you put the kettle on as able to tell its the kettle via its power usage signature so after or before watching strictly come dancing.
when you go to bed, when you get up,
when you go on holiday, only background power used for a week
when you get back. == refer to the first one.
So its not difficult to work it out for yourself how it can all be done.