Techno-economic evaluation of various hybrid power systems for rural telecom

Amutha, W. Margaret; Rajini, V.

doi:10.1016/j.rser.2014.10.103

Cited by 94 publications

(20 citation statements)

References 13 publications

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“…The electrical load profile comes from two different uses: isolated telecom antenna (1 and 4 kW steady load), which is becoming an interesting niche market, as is mentioned in other studies [11,12]; and off-grid home (variable load).…”

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confidence: 99%

Use of Hydrogen in Off-Grid Locations, a Techno-Economic Assessment

et al. 2018

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Diesel generators are currently used as an off-grid solution for backup power, but this causes CO 2 and GHG emissions, noise emissions, and the negative effects of the volatile diesel market influencing operating costs. Green hydrogen production, by means of water electrolysis, has been proposed as a feasible solution to fill the gaps between demand and production, the main handicaps of using exclusively renewable energy in isolated applications. This manuscript presents a business case of an off-grid hydrogen production by electrolysis applied to the electrification of isolated sites. This study is part of the European Ely4off project (n • 700359). Under certain techno-economic hypothesis, four different system configurations supplied exclusively by photovoltaic are compared to find the optimal Levelized Cost of Electricity (LCoE): photovoltaic-batteries, photovoltaic-hydrogen-batteries, photovoltaic-diesel generator, and diesel generator; the influence of the location and the impact of different consumptions profiles is explored. Several simulations developed through specific modeling software are carried out and discussed. The main finding is that diesel-based systems still allow lower costs than any other solution, although hydrogen-based solutions can compete with other technologies under certain conditions.

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confidence: 99%

Use of Hydrogen in Off-Grid Locations, a Techno-Economic Assessment

et al. 2018

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“…HOMER simulated and optimized several configurations of the hybrid power system sorted by Net Present Cost [23,67]. To do that, this software performed hundreds or thousands of hourly simulations/optimizations, matching supply and demand, to get the optimal system [109,110] and the least-costly option, using a proprietary derivate-free algorithm [66]. This analysis focused on comparing a wide range of equipment (previously described), including different constraints and sensitivities [110].…”

Section: Energy System Modelmentioning

confidence: 99%

“…To do that, this software performed hundreds or thousands of hourly simulations/optimizations, matching supply and demand, to get the optimal system [109,110] and the least-costly option, using a proprietary derivate-free algorithm [66]. This analysis focused on comparing a wide range of equipment (previously described), including different constraints and sensitivities [110]. Firstly, the hybrid system was simulated to identify the real LCOE.…”

Section: Energy System Modelmentioning

confidence: 99%

Decarbonizing the Galapagos Islands: Techno-Economic Perspectives for the Hybrid Renewable Mini-Grid Baltra–Santa Cruz

et al. 2020

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The fragile ecosystem of the Galapagos Islands is being affected by population growth, intensive tourism, the exploitation of local resources and the high consumption of imported fossil fuels. This unsustainable development model makes the provision of services such as electricity a challenge. This research investigates the hybrid renewable mini-grid Baltra-Santa Cruz, which represents 62% of the electricity generation mix of the archipelago. This study aims to support the Galapagos Zero Fossil Fuel Initiative and the Sustainable Development Goal 7 through the reduction in diesel consumption and electricity generation costs. To do so, HOMER Pro, a specialized hybrid renewable mini-grid planning tool, is used to perform several techno-economic assessments, focusing on different electricity demand scenarios. Therefore, multiple pathways are compared to identify the most reliable alternatives towards the progressive decarbonization of this hybrid system. The results indicate that installing 18.25 MWp of photovoltaic and 20.68 MWh of battery capacity could reduce the Levelized Cost of Electricity (LCOE) from 32.06 to 18.95 USc/kWh, increasing the renewable energy (RE) share from 18% to 39%. Additionally, the successful application of energy efficiency measures would even reduce the LCOE to 17.10 USc/kWh. What is more, distributed energy is considered the most attractive way to involve islanders in the energy transition process. Finally, this paper offers a comprehensive business model proposal to achieve a resilient energy supply, based on a combination of auctions and energy community models, which demands high political will, reliable and innovative regulations and social awareness about energy use.Sustainability 2020, 12, 2282 4 of 47 and implement RE projects. In addition, the Ecuadorian Electricity Master Plan (PME) 2016-2025 [44] contains the list of priority projects to increase renewable electricity generation. Moreover, those possible new partners can propose additional RE initiatives thanks to the General Regulation of the LOSPEE. This regulation [43] is based on the targets of the National Plan of Development 2017Development -2021 which prioritize RE resources exploitation to reduce the dependency of fossil fuels. What is more, new companies interested in developing RE projects can receive an income-tax-exemption for five years [46].As regards distributed generation, the photovoltaic microgeneration to electricity self-sufficiency for final consumers of electricity regulation [47] and its amendment [48] promote the installation of PV systems up to 300 kWp per user in the residential sector and below 1000 kWp per user in the commercial and industrial sectors. This regulation is not limited to rooftop PV systems. A net-metering scheme is applied to compensate electricity costs. Thanks to this mechanism, consumers are billed for their "net" electricity use and the associated costs become credits for the following months if the electricity balance is positive for users. [47]. The National Rate Schedule for ...

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“…Several studies [107,[109][110][111][112][113] have examined the potential of hybrid renewable energy to supply power to cellular BSs. Amutha et al [109] investigated the optimization of hybrid RESs that use DG as a backup power source.…”

Section: Indiamentioning

confidence: 99%

“…Amutha et al [109] investigated the optimization of hybrid RESs that use DG as a backup power source. PV/DG, PV/WT/DG, PV/WT/DG/FC, PV/WT/FC, and PV/WT hybrid power systems have also been examined in previous studies.…”

Section: Indiamentioning

confidence: 99%

Green and Sustainable Cellular Base Stations: An Overview and Future Research Directions

Alsharif

Kim

2017

Energies

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Energy efficiency and renewable energy are the main pillars of sustainability and environmental compatibility. This study presents an overview of sustainable and green cellular base stations (BSs), which account for most of the energy consumed in cellular networks. We review the architecture of the BS and the power consumption model, and then summarize the trends in green cellular network research over the past decade. As its major contribution, this study highlights the uses of renewable energy in cellular communication by: (i) investigating the system model and the potential of renewable energy solutions for cellular BSs; (ii) identifying the potential geographical locations for renewable-energy-powered BSs; (iii) performing case studies on renewable-energy-powered cellular BSs and suggesting future research directions based on our findings; (iv) examining the present deployment of sustainable and green BSs; and (v) studying the barriers that prevent the widespread use of renewable-energy-powered BSs and providing recommendations for future work.

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Techno-economic evaluation of various hybrid power systems for rural telecom

Cited by 94 publications

References 13 publications

Use of Hydrogen in Off-Grid Locations, a Techno-Economic Assessment

Use of Hydrogen in Off-Grid Locations, a Techno-Economic Assessment

Decarbonizing the Galapagos Islands: Techno-Economic Perspectives for the Hybrid Renewable Mini-Grid Baltra–Santa Cruz

Green and Sustainable Cellular Base Stations: An Overview and Future Research Directions

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