I want to know how inefficient a house is.

I'm using an IC that calculates the power factor of the load connected to it.

(It measures instantaneous values of current and voltage, then calculates active and apparent powers, and finally calculates the power factor).

I spread these ICs around the house and have each electrical home appliance connected to such IC, and I'd like to calculate the "average power factor" of the house, in order to know how much inefficient my house is.

Once I have the power factor of each appliance, what should be the correct way to calculate the average power factor of the house?

I thought of:

[1 / ∑P(i)] * ∑[P(i)*PF(i)]

The reasons behind this are:

1. I give a larger significance to larger consumers.

2. When an appliance is off, then its calculated PF is 0, and I dont want to take this into account.

What are your suggestions please?

Thank you.

I'm using an IC that calculates the power factor of the load connected to it.

(It measures instantaneous values of current and voltage, then calculates active and apparent powers, and finally calculates the power factor).

I spread these ICs around the house and have each electrical home appliance connected to such IC, and I'd like to calculate the "average power factor" of the house, in order to know how much inefficient my house is.

Once I have the power factor of each appliance, what should be the correct way to calculate the average power factor of the house?

I thought of:

[1 / ∑P(i)] * ∑[P(i)*PF(i)]

The reasons behind this are:

1. I give a larger significance to larger consumers.

2. When an appliance is off, then its calculated PF is 0, and I dont want to take this into account.

What are your suggestions please?

Thank you.

Last edited: