Sizing verification of a 4kWp retrofitted grid-connected photovoltaic system: a case study in Shah Alam, Malaysia

Abstract

Electricity are commonly generated from several types of energy resources such as fossil and nuclear energy. However, due to emission of carbon dioxide from both sources, renewable energy is introduced to provide a clean and secure sustainable energy. One of the potential renewable energy application is Photovoltaic (PV) system; namely grid-connected photovoltaic (GCPV) system and stand-alone photovoltaic (SAPV) system. In this study, a mathematical approach of SEDA's GCPV sizing model is implemented to size a 4kWp of a retrofitted GCPV system by the method claimed to be the best practice mathematical design model under tropical climate Malaysia. The outcome of the sizing approach will then be evaluated with HelioScope software, one of commercial simulation tools available in current market. The final result obtained from both methods shows that the final PV array configuration is 1 x 12 (parallel x series) which is in agreement to the actual installed system.

Simulation and prediction of residential grid-connected photovoltaic system performance

“…Several sizing models are accessible globally, including mathematics, simulation, and artificial intelligence. SEDA's GCPV system design model is reported to be the recommended mathematical-based design approach for scenarios in Malaysia tropical climate [14]. Numerous software are available to simulate and analyze the performance of GCPV systems such as PVsyst, HOMER, PVSOL, PVGIS, solar GIS, and SISISFO [1].…”

A practical method to design the solar photovoltaic system applied on residential building in Indonesia

“…Apart from being a source of backup electricity, this system is also useful for reducing electricity bills for the public grid. In designing this system, the correct calculation method is always needed so that the solar power generation system that is built can operate optimally [26]- [29]. The calculations carried out must also consider various parameters of the installation site conditions and the specifications of each component of the solar power generation system.…”