Integrated long-term planning of conventional and renewable energy sources in Iran's off-grid networks

Sadeghi, Hooman; Toghraie, Davood; Moazzami, Majid; Rezaei, Mohammad Mahdi; Dolatshahi, Milad

doi:10.1016/j.renene.2021.10.006

Cited by 15 publications

(1 citation statement)

References 40 publications

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“…The modeling considers the demand‐side management for efficient electrification. The simulation‐optimization was carried out using HOMER software in Reference 25 for Bardsir's isolated location. They proposed an independent microgrid (Iran).…”

Section: Introductionmentioning

confidence: 99%

Optimal planning of renewable integrated rural microgrid for sustainable energy supply

Kama¹,

Ashraf

Fernandez

2022

Energy Storage

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Renewable resources can help reduce carbon emissions, but their inconsistency causes inconsistent energy generation, mandating the introduction of a battery bank to overcome the demand‐supply gap. The integration of renewables for electrical supply systems in rural regions has received much attention, as has the hybrid energy system with storage for microgrids. This work presents an optimization technique for the design and operation of a standalone microgrid with load demand. The research framework is demonstrated by a case study in a remote rural location in Uttarakhand (India). This research proposes an integrated techno‐economic optimization and power management of a standalone integrated renewable energy system to meet the electrical energy demand. The levelized cost of energy (LCOE), the net present cost (NPC), and pollution emission are minimized using grey wolf optimization. Four alternative models are compared based on environmental considerations and economic research. According to the simulation findings, the optimal configuration has a 0.203 $/kWh LCOE and a 92% renewable portion. In addition, the optimization results have been presented and compared. Finally, a sensitivity analysis is performed to determine the impact of various factors on the system in question.

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Section: Introductionmentioning

confidence: 99%

Optimal planning of renewable integrated rural microgrid for sustainable energy supply

Kama¹,

Ashraf

Fernandez

2022

Energy Storage

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Sizing of storage‐based renewable off‐grid system according to supply of electrical and thermal energies considering unscented transformation‐based stochastic optimization: A case study

Bahmani,

Kiani,

Nejatian

et al. 2024

Optim Control Appl Methods

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The paper presents the planning (sizing) of a hybrid islanded system containing only renewable sources including wind turbines, photovoltaics, and bio‐waste energy units for the simultaneous supply of electrical and thermal energy. The mentioned renewable sources are used to supply electrical energy. The bio‐waste unit (BEU) is equipped with combined electrical and thermal technology. It is used along with heat pumps to supply thermal energy. Electrical and thermal storage are employed to make the renewable power output as close as possible to the demand level. Electric storage can be either stationary (e.g., battery) or mobile (e.g., electric vehicles), but thermal storage is as stationary type of storage. In the following, the proposed scheme minimizes construction and maintenance costs imposed by power sources, storage devices, and power electronic converters, and expected storage degradation cost. This plan is bound to the model of operation of sources, storage devices, and power electronic converters. In this model, renewables are the main source of power to supply consumers, where storage is adopted to increase the generation level to make it as close as possible to the demand curve. The uncertain parameters are imposed by the load, renewable phenomena, and mobile storage parameters. To model these uncertainties, stochastic optimization based on unscented transformation is used. Finally, the findings of the paper demonstrate that the suggested scheme succeeds in the economic planning of the system with a simultaneous supply of electrical and thermal energy. The BEU equipped with a combined electricity and heat system along with thermal storage and a heat pump to supply thermal load besides providing electric energy can reduce the planning cost by 2.9% compared with the case with only electrical energy. Also, the mobile storage presence in the hybrid system can reduce the number of stationary storage devices, which alone results in a 7.7% decrease in the planning cost of the hybrid system.

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Rural electrification using renewable energy resources and its environmental impact assessment

Kamal

Mohammad

Ashraf

et al. 2022

Environ Sci Pollut Res

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Integrated long-term planning of conventional and renewable energy sources in Iran's off-grid networks

Cited by 15 publications

References 40 publications

Optimal planning of renewable integrated rural microgrid for sustainable energy supply

Optimal planning of renewable integrated rural microgrid for sustainable energy supply

Sizing of storage‐based renewable off‐grid system according to supply of electrical and thermal energies considering unscented transformation‐based stochastic optimization: A case study

Rural electrification using renewable energy resources and its environmental impact assessment

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