Dynamic behaviour of a population of controlled-by-price demand side resources

It is described that controlling or shedding by price the power consumption of a population of thermostatic loads introduces in the aggregate consumption dynamic effects that cannot be disregarded if electrical flexible demand is meant to supply power system services. It is shown that inducing a desynchronization in the consumption contributes to damp the oscillations. Results are supported by Monte Carlo simulations of a population of buildings equipped with electric space heating whose consumption is indirect controlled by a dynamic price of the electricity.