Powering an island system by renewable energy—A feasibility analysis in the Maldives

Liu, Jiahong; Mei, Chao; Wang, Hao; Shao, Weiwei; Xiang, Chenyao

doi:10.1016/j.apenergy.2017.10.019

Cited by 64 publications

(32 citation statements)

References 37 publications

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“…Modern mini-grids can be designed to offer high levels of supply reliability by utilizing multiple energy sources (hybrid systems), ensuring adequate storage capacity, or both [116,117]. In fact, decentralization of power networks is now perceived in many areas as an effective strategy to increase diversification of indigenous supply and reduce dependency on imports [63,118,119].…”

Section: Ensuring Reliability Of Supply and Environmental Securitymentioning

confidence: 99%

A Retrospective Analysis of Energy Access with a Focus on the Role of Mini-Grids

et al. 2020

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Achieving universal access to electricity by 2030 is a key part of the Agenda for Sustainable Development, and has its own Sustainable Development Goal, SDG 7.1. This is because electricity services are required for almost all aspects of a modern economy, from the cooling of vaccines to irrigation pumping, to manufacturing and running a business. The achievement of SDG 7.1 will require a thoughtful mix of policy, finance, and technology to be designed and implemented at scale. Yet, the pressing need for an electrification ramp-up is not unprecedented. Many countries (now considered "industrialized") faced similar challenges about a century ago. Although the existing literature covers a great deal of power systems evolution, there is a gap around the specific role and impact of small, isolated power systems in the early stages of electricity uptake. In this paper, we provide insights based on the review of the historical electrification efforts in four (now middle and high-income) countries. The drivers and context of electrification efforts in early stages are described. Those focus particularly on the role of dispersed, small-scale generation systems (mini-grids). Our analysis shows that electrification follows four loosely defined phases, namely: pilot projects, technological roll-out, economic expansion, and social scale-up. We report a selection of historical mistakes and advances that offer lessons of striking importance for today´s energy access efforts, particularly in regards to the development of mini-grids. We find that today, as historically, multi-stakeholder (e.g., planners, regulators, developers, investors, third party actors) collaboration is key and can help build locally adaptable, economically sustainable and community compatible mini-grids that can accelerate-and lower the societal costs of-universal access to electricity.

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Section: Ensuring Reliability Of Supply and Environmental Securitymentioning

confidence: 99%

A Retrospective Analysis of Energy Access with a Focus on the Role of Mini-Grids

et al. 2020

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“…Annualised battery cost = battery capital cost × CRF (5) It can be seen Table 7, the annualized operating cost of PV system with lead acid battery is $ 346.85. By using all related equations, the annual operating cost and profit by using lead acid battery inclusive the cost the inverter are: Figure 5 shows the energy flow schedule for Li-ion battery in the same system as before.…”

Section: Figure 4 Optimum Battery Capacity With Minimum Operating Costmentioning

confidence: 99%

“…Thus, choosing the batteries in PV system have to meet the demand of the load. The requirement to choose the batteries includes cost, life-cycle, installation and services [4,5].…”

Section: Introductionmentioning

confidence: 99%

Analysis of an energy storage sizing for grid-connected photovoltaic system

Azmi

Salim

Khamis

2019

IJEECS

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This paper present on the analysis of an energy storage sizing for a small grid-connected PV system. This project is to study the proper sizing of energy storage (battery) in a grid-connected PV system for consumers whom purchase and sell electricity from and to the utility grid. The goal is to minimize the total cost of the operation for a consumer with a PV system with a battery storage system. This is to make sure that minimizing the total annual operating cost while maintaining an efficient system. This study uses typical consumer load consumption, and solar irradiance data throughout a year, while varying the type of battery storage (study lead acid and Lithium ion battery) as an energy storage for a similar system. Since lithium ion is not the main options to be integrated with PV system, this study will then reveal the data in terms of cost on why it is not a popular choice.

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“…Although the level of science and technology is higher than before, utilization of energy is still not sufficient, especially in the new energy areas . According to some literatures, the intermittency of solar energy that could impede constant power resource security and energy independence inherently hinders its widespread applications, as well as other kinds of renewable energies simultaneously . As a ponderable renewable energy, solar energy owns the abundant storage of around 23 000 TW/a and could completely satisfy the global energy consumption even in 2050 of about 30 TW/a .…”

Section: Introductionmentioning

confidence: 99%

Preparation and application of composite EG/Ba(OH)₂ ·8H₂ O form-stable phase change material for solar thermal storage

Han

Zhang

et al. 2019

Int J Energy Res

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Summary Composite expended graphite (EG)/Ba(OH)2·8H2O form‐stable phase change material (PCM) is prepared with porous adsorption method in this study to solve the problem of the leakage risk in the application process based on barium hydroxide octahydrate. In addition, the thermal properties and stability have been measured and verified. Thermal conductivity of each group composite material was enhanced by about two to four times, while the addition has little negative effect on the other properties. With microscopic features being characterized by scanning electron microscope (SEM), the experimental result demonstrates that the composite material with 7 wt% of EG is optimal to be a saturated state between two phases. After the thermal cyclings of 100, 300, and 500 times, thermal properties did not change dramatically, which can be used as an ideal material for solar thermal storage system within finite thermal cyclings. In order to simulate the operating condition of solar energy or waste heat storage, the composite material was encapsulated in the heat storage unit with pipe bundle, and heat storage/release experiences were performed to test the performance of the material and hot water supply. The results indicate that the composite material is qualified to storage and release sufficient heat. The experimental data can provide necessary technical reference for engineering design and effect prediction in practical application.

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Powering an island system by renewable energy—A feasibility analysis in the Maldives

Cited by 64 publications

References 37 publications

A Retrospective Analysis of Energy Access with a Focus on the Role of Mini-Grids

A Retrospective Analysis of Energy Access with a Focus on the Role of Mini-Grids

Analysis of an energy storage sizing for grid-connected photovoltaic system

Preparation and application of composite EG/Ba(OH)₂ ·8H₂ O form-stable phase change material for solar thermal storage

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Powering an island system by renewable energy—A feasibility analysis in the Maldives

Cited by 64 publications

References 37 publications

A Retrospective Analysis of Energy Access with a Focus on the Role of Mini-Grids

A Retrospective Analysis of Energy Access with a Focus on the Role of Mini-Grids

Analysis of an energy storage sizing for grid-connected photovoltaic system

Preparation and application of composite EG/Ba(OH)2 ·8H2 O form-stable phase change material for solar thermal storage

Contact Info

Product

Resources

About

Preparation and application of composite EG/Ba(OH)₂ ·8H₂ O form-stable phase change material for solar thermal storage