Grid-connected PV system design option for nearly zero energy building in reference building in Hanoi

Abstract

Building is responsible for more than 40 percent of energy consumption and one third of greenhouse gas emissions. Europe has stablished the path towards nearly zero-energy buildings (nZEB), soon required in every new construction and large renovation in existing buildings by 2020. Achieving nZEB required the use of photovoltaic modules for generating electricity. In Vietnam, photovoltaic systems are in most cases not used in building today. This research, we aim to implement the platform that will be dedicated to prototyping and tools to support research training in the reference building. In order to achieve nZEB, a 15 kWp of PV array will be installed in the rooftop of this building to compensate the energy needed. The objectives are to benefit from PV source, to improve energy efficiency and to reduce cost of electrical consumption in different scenarios. The Photovoltaic simulation tool is important in predicting the energy production from the solar panels. The first study investigates the use of a simulation tool PVSYST as a method of informing the design decision of building installed photovoltaic system. Input to the simulation software such as meteorological data has been evaluated.