Modelling of domestic hot-water heater load from online operating records and some applications

In the paper, the problems involved in modelling domestic hot-water heater loads are discussed. The hot-water heater load modelling problem is divided into two parts: load shedding and load restoration. By considering the `instantaneous¿¿ load recordings during normal day-to-day operations of the system, and the measurements obtained from a small representative area, the parameters describing the load shed and load restore models are obtained. Two possible applications of the models are described. The first is to apply the model for reconstructing the uncontrolled load. It is shown, by comparison of the reconstructed uncontrolled load and the uncontrolled load during days when no load shed actions are necessary, that the reconstructed uncontrolled load curve is reasonable. The second application is to use the model in actual load management considerations.