Photovoltaic systems for Malaysian islands: Effects of interest rates, diesel prices and load sizes

Lau, Kwan Yiew; Tan, Chee Wei; Yatim, A.H.M.

doi:10.1016/j.energy.2015.02.015

Cited by 56 publications

(21 citation statements)

References 18 publications

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“…He also analyzed the effect of diesel price increase on the system in future. Moreover, M.S Ngan [39] and Lau [40] also uses the HOMER software to perform the techno-economic analysis for their systems.…”

Section: Homer Softwarementioning

confidence: 99%

A techno-economic assessment of a combined heat and power photovoltaic/fuel cell/battery energy system in Malaysia hospital

Isa

Das

Tan

et al. 2016

Energy

Self Cite

174

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Section: Homer Softwarementioning

confidence: 99%

A techno-economic assessment of a combined heat and power photovoltaic/fuel cell/battery energy system in Malaysia hospital

Isa

Das

Tan

et al. 2016

Energy

Self Cite

174

View full text Add to dashboard Cite

“…The theoretical concept for optimization in this analysis was based on mathematical modeling that included the model of power generation, the system components, the costs, and energy optimization. The theorical aspects are given below and are based on the works of authors in [6], [7], and [8].…”

Section: System Modelingmentioning

confidence: 99%

“…Solar irradiation is the input parameter for photovoltaic generation model. The energy output from PV panel is depends on beam and diffuse radiation that falls on the PV panels and it can be modeled by the general equation [6], [7], and [8]. (1) An assumption was made that temperature effects on PV cells will be ignored.…”

Section: Mathematical Model For System Componentsmentioning

confidence: 99%

“…At any time, t, the SOC is related to the previous SOC, while for the period of t-1 to t, it is related to the energy production and consumption situation. During the charging process, when the total output of all PV exceeds the load demand, the available battery bank capacity at a time, t, is described by [6], [7], and [8]. (4) where, is the energy stored in battery at hour t, is the energy stored in battery at hour t-1, is the energy discharge from charge controller at hour t, is the battery charging efficiency.…”

Section: Mathematical Model For System Componentsmentioning

confidence: 99%

“…he battery is triggered to support the energy demand. As such, the available energy in battery bank at a time t, is expressed as [6], [7], and [8]:…”

Section: Mathematical Model For System Componentsmentioning

confidence: 99%

See 2 more Smart Citations

Techno-economic Analysis of a Stand-alone Photovoltaic-Diesel Hybrid System for Rural Area in Sarawak

Harmen

Julai

Othman

et al. 2020

IJIE

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Photovoltaic hybrid power generation is an alternative solution for supplying electricity to rural areas, especially in Sarawak, Malaysia, where grid connection is almost impossible due to the cost and geographic location. Diesel generator systems are still used by local communities in these remote areas, and the implementation of photovoltaic diesel hybrid systems can reduce dependency on diesel generator units. The work presented in this paper explores the possibility of integrating solar energy resource with diesel generator to meet the load demand of rural communities in Sarawak. In further detail, the configuration and size of the PV-diesel system are analyzed in based on the lowest net present cost (NPC) and the cost of electricity (COE). The analysis is based on mathematical modeling and simulation using Hybrid Optimization Model for Electric Renewables (HOMER) software. Eight different configurations of two energy resources-photovoltaic panels and diesel generators-are studied and compared. The option with the highest optimization values is considered to be the most feasible electrification solution for the particular rural area. The outcomes of the analysis show that the PV-diesel hybrid configuration proves to be more cost-effective compared to an existing generator-based system in that it reduces fuel dependency and has the lowest NPC and COE among all configurations studied.

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The nonlinear shift to renewable microgrids: Phase transitions in electricity systems

et al. 2020

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Summary Future cost reductions in renewable generation and storage technologies hold promise for dramatic changes in the design, cost and carbon emissions from microgrids. Microgrid design depends nonlinearly on technology costs and this article analyzes this non‐linear relationship by developing an analogy between phase transitions in physical systems and microgrid design. Technology costs are akin to state variables that influence the “phase” of the system, described by the presence and activity of different energy technologies in an equilibrium (least‐cost) microgrid design. The phase transition concept is explored by modeling the least‐cost design and operation of standalone microgrids in a broad space of photovoltaic and lithium‐ion battery prices. Results indicate clearly defined phases— boundaries with sudden jumps in incorporation of solar, batteries or diesel into the system and discontinuities in the derivative of system cost at these boundaries (1st order phase transitions). For example, for a residential system in Rochester, photovoltaic prices fell such that the optimal share of photovoltaic capacity jumped from 0% in 2011 to 32% in 2012. Looking to the future, we find combinations of solar and battery prices needed for microgrid parity (levelized cost of electricity = US$0.1/kWh). Comparing these future price requirements with historical trajectories suggests attaining grid parity will be challenging. The ideas developed here, with modification, could also be applied to macrogrids.

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Photovoltaic systems for Malaysian islands: Effects of interest rates, diesel prices and load sizes

Cited by 56 publications

References 18 publications

A techno-economic assessment of a combined heat and power photovoltaic/fuel cell/battery energy system in Malaysia hospital

A techno-economic assessment of a combined heat and power photovoltaic/fuel cell/battery energy system in Malaysia hospital

Techno-economic Analysis of a Stand-alone Photovoltaic-Diesel Hybrid System for Rural Area in Sarawak

The nonlinear shift to renewable microgrids: Phase transitions in electricity systems

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