Ice-storage device application in commercial buildings of Wuxi Sino-Swedish Eco-City.

Wuxi Sino-Swedish Eco-City is a 2.4 km2 demonstration project for innovation in energy technology and integrated smart city solutions in southern China. Due to a high cooling demand from building sector in summer season, there is foreseen to be electricity peak load. The peak requires marginal electricity such as gas turbine to cover the demand, which will bring extra CO2 emission. Ice-storage system once equipped into the building energy system, can be a good solution for balancing the peak load and saving energy. This paper discussed the modelling process of the eco-city’s commercial building electricity projection based on ice-storage implementation and provides an operation strategy. The simulation results show that the electricity peak can be effectively balanced. A total of 630 ton carbon dioxide can be reduced per year in a certain scenario, and up to 40 thousand Yuan electricity cost can be reduced each year.