High peak load will be one of the main obstacles for Taiwan moving forwards green renewable energy and nuclear-free homeland. The ice storage system is one of the feasible ways for shifting the peak load of air conditioning electricity. The traditional ice storage system used solid-liquid phase change materials as storage medium, but the volume of the system is too large to be applied. Moreover, the thermal resistance of ice and the heat exchanger damaged by thermal expansion contraction are the main issues for the traditional ice systems. Heat driven air-conditioning systems (HDAC), such as absorption or adsorption chiller systems, not only can use the latent heat of liquid-gas phase change as a storage medium significantly increasing the cold storage density, but also can store the cold energy at the ambient temperature. All of these advantages make HDAC have enormous potential to replace traditional ice storage systems. According to references mentioned, the absorption chillier prototype test results show that the energy storage density is about 200~400 kJ/kg. The values are almost the same level to the traditional ice systems. Because of the low sorption capacity of absorbent or desiccant at low regeneration temperature condition (<100oC), the storage energy density is actually lower the highest theoretical one. On the other hand, if the heat source come from solar, the cost, volume of the system and undulate heat supply will decline the competitiveness of HDAC systems. The adsorption chillier has lower storage energy density than the absorption chillier due to solid adsorbent with low adsorption capacity. However, though impregnated with salt absorbent, the composite desiccant have a highest theoretical storage energy density of 600 kJ/kg. In the future, developing a new absorbent regenerated at low temperature, like non-crystallized ionic liquids, can improve the performance and the maintenance costs. The liquidity advantage of absorbent let absorption chillier is suitable to apply in large-scale cold storage systems. Simultaneously, Metal Organic Frameworks (MOFs) which can regenerate in the low temperature and have high adsorption capacity also make the adsorption chillier competitive. Nevertheless, the non-mobility of solid desiccant limit the system applications and suits for the small or distributed cold storage systems. When the new low regeneration temperature absorbents and adsorbents are developed, HDAC driven by the high efficient and stable heat pumps significantly will increase the market competitiveness.