Performance evaluation of the use of accumulating systems in the power industry

Under rapid surges in gas prices, the difference in the costs of electric power production between peak (and half-peak) and base load plants is quickly increasing, so that accumulating systems that allow transfer of cheap night energy to peak and daytime zones have proved highly efficient. A method to evaluate the economic efficiency of such accumulating systems is presented, which is based on model simulation in order to find the optimal tariffs differentiated by time zones.