DOI: 10.5176/2301-394X_ACE18.59
Authors: Jirapa Kamsamrong, M. Norbert Fisch and Christoph Menke
Abstract:
The mismatch between energy supply of solar power utilization and energy demand in the residential building becomes crucial concerns for energy policy and planning in term of power quality control and grid interaction. Main energy consumption in the residential building in Thailand is cooling demand. The inconsistency between energy supply and demand in the residential building integrated with PV is commonly covered by the energy storage or fed back to the utility grid. This research work presents a comparative assessment of photovoltaic (PV) selfconsumption between business as usual (BAU) building and nearly zero energy building (nZEB) in Thailand using ice thermal energy storage (ITES). The results show that the energy efficiency measures in nZEB building such insulation, double glazing, and external shading can reduce electricity demand from 152 kWh/m2a to 92 kWh/m2a. In addition, the ITES application can further reduce electricity consumption for cooling demand by 53% in BAU building and by 48% in the nZEB building. The nZEB with ITES application can increase PV self-consumption by 63% compared to the same building with non-ice thermal energy storage case.
Keywords: component; Ice Thermal Energy Storage (ITES), PV, self-consumption, nearly zero energy building (nZEB), prosumer
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