Design of a PV/Wind Hybrid Power Generation System for Ayitepa Community in Ghana
Martin Akuffo Paintsil,
Felix Koney Okpoti,
Joseph Cudjoe Attachie,
Augustine Mbeah
Issue:
Volume 11, Issue 6, November 2022
Pages:
108-117
Received:
26 October 2022
Accepted:
14 November 2022
Published:
29 November 2022
DOI:
10.11648/j.epes.20221106.11
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Abstract: The provision of universal access to electricity is the ultimate aim of many governments worldwide. This goal is however not easily attained, especially in Sub-Saharan African countries and across many developing nations due to the lack of capital, sufficient generation capacity to meet growing loads, aged or dilapidated transmission and distribution infrastructure, high supply costs, coupled with the weak financial position of utilities and their inability to recover revenue from low-income households as well as high line losses. In this paper, a PV-Wind-Battery hybrid renewable energy system is designed to meet the energy needs of Ayitepa, a typical fishing and farming community located within the Ningo-Prampram district, about 63 km from the capital Accra with a population of 1,375 people, residing within 194 households in 138 houses. The community’s daily electrical load was estimated to be 100 kW, with a cumulative daily primary load of 180 kWh/d consisting of residential, commercial, and industrial loads such as houses, schools, flour mills, a health clinic, and cold stores. HOMER software was used to perform analysis to determine the optimum hybrid renewable energy system configuration for the community. It was observed that the configuration comprising a battery bank (3,050 kWh), converter (66 kW), PV (180 kW), and wind turbine (50 kW) was the best configuration sizing required to meet Ayitepa’s load. The hybrid system LCOE and NPC was estimated at $0.405/kWh and $1,825,558.00 respectively. Also, the hybrid system had an initial capital cost of $957,800.00. The operating cost associated with this hybrid system was about $46,938/yr. These costs, however, reduced with increasing capital subsidy.
Abstract: The provision of universal access to electricity is the ultimate aim of many governments worldwide. This goal is however not easily attained, especially in Sub-Saharan African countries and across many developing nations due to the lack of capital, sufficient generation capacity to meet growing loads, aged or dilapidated transmission and distributi...
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The Impact of Cyber Attack on Emergency Energy System
Ghaeth Fandi,
Miroslav Müller,
Martin Čerňan,
Zdeněk Müller,
Josef Tlusty
Issue:
Volume 11, Issue 6, November 2022
Pages:
118-122
Received:
22 June 2022
Accepted:
14 July 2022
Published:
31 January 2023
Abstract: An emergency energy system is a backup power system used in critical situations with the aim of protecting lives and property from the consequences of energy loss, as is the case in hospitals (heart monitors, Ventilator,…etc), and also in sensitive facilities (military industries and government buildings). The emergency power system can contain batteries of all kinds, in addition to solar and wind energy equipment and other cheap types of energy. The concept of cyber security arose several decades after the invention of the computer. At first, there was no need for cyber security, as it was difficult for electronic attacks to occur, because access to computers was limited to specific numbers of users, as the devices were giant confined to a room with certain specifications and were not Linked to networks at the time, Energy sectors expose themselves to a range of cyber threats that can damage control systems. So management, engineering, and IT must adhere to a comprehensive approach that includes threat prevention, detection, and elimination. In this research we will try to mitigate the effects of the cyber attack on these systems by applying some algorithms in order to detect, identify and prevent such attacks, and we will see through the results we obtained that we have made remarkable progress in this field.
Abstract: An emergency energy system is a backup power system used in critical situations with the aim of protecting lives and property from the consequences of energy loss, as is the case in hospitals (heart monitors, Ventilator,…etc), and also in sensitive facilities (military industries and government buildings). The emergency power system can contain bat...
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