Carbon Dioxide Emissions Reduction Analysis of Ice Storage System

The contribution of ice storage system to the power grid and electricity sector,that was,the positive externalities of ice storage system was studied.A methodology was presented to calculate the carbon dioxide emissions reduction caused by the utilization of ice storage system.Further,the typical ice storage system in an office building in Zhejiang province was analyzed.The results show that the utilization of ice storage system can improve the power grid load factor so as to enable the electricity sector cut emissions.And,carbon dioxide emissions reduction per unit of storage capacity for the typical ice storage system is 0.686 kg·kWh-1.In the cooling periods of 2006,every time the load factor of East China power grid varied 1%,the variation of coal consumption of power supply was 4.982 g·kWh-1.In addition,it's proposed that carbon dioxide emission reductions can be used as an indicator to assess the contribution of ice storage systems to power grid.