Peakload regulation capability of power systems can be improved by the rational utilization of thermal storage systems at the customerside, which can also promote the consumption of the renewable energy. A set of indicators, which considers the quantity, the intensity and the velocity of the potential power consumption, is proposed to direct the consumption of the abandoned wind power by distributed electric boilers with thermal storage (EBTS). The indicator set evaluate the consumption ability from three aspects, which includes day ahead level, hour level and realtime level. The indicator set not only provides data support for the instructions of the EBTS, but also provide the realtime operating state information of EBTS to operators. This paper introduce the thermal storage consumption system, and elaborate the application of the indicator set, of which effectiveness is validated through case studies.