Indonesian Journal of Electrical Engineering and Computer Science · 2018 · 12 citations · 12 references
AgricultureResource EconomicsEnergy EconomicsEnergy SystemsRenewable Energy SystemsEnergy MeteringRenewable EnergyRenewable Energy EconomicsRenewable Energy TechnologySolar Energy SystemsSolar Photovoltaic SystemsEnergyFeed-in Tariff PricingNet Metering TariffsPhotovoltaic Energy SystemsPhotovoltaic System SimulationPhotovoltaic SystemsResidential Load ModelingSolar Photovoltaic Power Systems
Malaysia’s 2011 Renewable Energy Act and the earlier Feed‑in Tariff scheme spurred solar PV adoption, but the FiT expired in 2016 and was replaced by a Net Energy Metering scheme. This study evaluates the technical and economic performance of a residential solar PV system under Malaysia’s Net Energy Metering scheme. The authors sized a grid‑connected PV array and inverter using local solar resource data and load profiles, then simulated the system in PVsyst. The simulation shows that increasing PV capacity raises total generation, with roughly 25 % of household load met directly, the remainder exported, eliminating the electricity bill and yielding profits, while 2,434 kWh of renewable energy annually offsets fossil fuel generation and avoids about 1.7 t of CO₂.
Renewable Energy Act (RE Act) has been gazetted by the Malaysian Government in 2011 to encourage energy generation from renewable resources. Under Feed-in Tariff (FiT) scheme, solar PV has gained popularity due to its high FiT rates. However, the FiT scheme for solar PV has expired in 2016 and been replaced by the Net Energy Metering (NEM) scheme. The objective of this research work is to technically and economically analyze the solar PV system for a residential house under NEM scheme. The methodology involves gathering solar energy resource information and daily residential load profile, sizing PV array together with grid-connected inverter and then lastly simulation of the design system by using PVsyst software. Based on the results obtained, the amount of energy generated is higher when the capacity of solar PV system is increased. While most of the energy generated is exported to the grid, only up to 25% of load demand is supplied by the solar PV system. From economic aspect, the residential house does not need to pay the electricity bill due to the self-consumed of energy generated and profit gained from excess energy exported to the grid. From the environmental aspect, 2,434 kWh energy generated from renewable resource annually and consumed by the residential load has replaced the fossil fuel based power from grid. This value is equivalent to almost 1.7 tons of CO2 avoidance to the environment.
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