Patent ID: 7541941

Claim:
A method of estimating the consumption of at least one energy resource, the method comprising the steps of: (a) obtaining the energy resource consumed by at least one first device over an elapsed time period A; (b) obtaining the average percentage of energy resource consumed by the at least one first device over the elapsed time period A; (c) obtaining the average percentage of energy resource consumed by the at least one first device in remaining time period B; (d) at least one second device, at least one of the at least one second device being different from at least one of the at least one first device: (i) multiplying the average percentage of energy resource consumed in remaining time period B with the energy resource consumed over the elapsed time period A; (ii) dividing the result obtained in step (i) with the average percentage of energy resource consumed over the elapsed time period A; and (iii) adding the result obtained in step (ii) with the energy resource consumed over the elapsed time period A.