scholarly journals Forecasting energy demand in isolated rural communities: A comparison between deterministic and stochastic approaches

2022 ◽  
Vol 66 ◽  
pp. 101-116
Author(s):  
Ángela Herraiz-Cañete ◽  
David Ribó-Pérez ◽  
Paula Bastida-Molina ◽  
Tomás Gómez-Navarro
2018 ◽  
Vol 7 (2) ◽  
pp. 183-190 ◽  
Author(s):  
Ogunjuyigbe Ayodeji Samson Olatunji ◽  
Ayodele Temitope Raphael ◽  
Ibitoye Tahir Yomi

This paper is part of the ongoing research by the Power, Energy, Machine and Drive (PEMD) research group of the Electrical Engineering Department of the University of Ibadan. The paper presents various sites with possible hydrokinetic energy potential in Nigeria with the aim of quantifying their energy potential for rural electrification application. Overview of hydrokinetic technology is also presented with the view of highlighting the opportunities and the challenges of the technology for rural electrification. A case study of using hydrokinetic turbine technology in meeting the energy demand of a proposed civic center in a remote community is demonstrated.  Some of the key findings revealed that Nigeria has many untapped hydrokinetic potential site and if adequately harnessed can improve the energy poverty and boost economic activities especially in the isolated and remote rural communities, where adequate river water resource is available. The total estimated untapped hydrokinetic energy potential in Nigeria is 111.15MW with the Northern part of the country having 68.18MW while the Southern part has 42.97MW. The case study shows that harnessing hydrokinetic energy of potential site is promising for rural electrification. This paper is important as it will serve as an initial requirement for optimal investment in hydrokinetic power development in Nigeria.Article History: Received November 16th 2017; Received in revised form April 7th 2018; Accepted April 15th 2018; Available onlineHow to Cite This Article: Olatunji, O.A.S., Raphael, A.T. and Yomi, I.T. (2018) Hydrokinetic Energy Opportunity for Rural Electrification in Nigeria. Int. Journal of Renewable Energy Development, 7(2), 183-190.https://doi.org/10.14710/ijred.7.2.183-190


2020 ◽  
Vol 12 (19) ◽  
pp. 8199 ◽  
Author(s):  
Saheed Lekan Gbadamosi ◽  
Nnamdi I. Nwulu

Renewable energy sources (RES) are seen as potential alternative energy sources for rural communities to meet energy demand where electricity supply is inaccessible. Wind and Photo-Voltaic (PV) power is seen as mature and sustainable alternatives for rural electrification. This paper discusses the optimal power dispatch for hybrid combined heat and power (CHP), wind, PV and battery systems with a view to determining the operation of the hybrid system for farming applications. This is accomplished by considering the basic power system probability concepts to assess the performance of the reliability indices. The proposed mathematical model seeks to minimize the system operation costs from CHP. The developed model was validated on five case studies with the same load profile, solar radiation, wind speed and CHP generating unit parameters and solved using a CPLEX solver embedded in Algebraic Modelling Language. The sensitivity analysis performed indicates that the hybrid system achieved a higher reliability as compared to other case studies. The result shows 48% of energy cost reduction is achievable when considering the proposed hybrid CHP, wind, PV and battery system as compared to energy supply via CHP.


2020 ◽  
Vol 15 (3) ◽  
pp. 1-8
Author(s):  
Ayush Acharya ◽  
Hugh Watson ◽  
Devashis Shrestha ◽  
Vabish Karki

This paper presents a concise framework for achieving sustainable and well-grounded mini-grid system across rural communities by interpreting various critical determinants which directly/indirectly affect a localized energy grid and draws a co-relation between them. The end product is a matrix that guides private sectors to rate an area in terms of its viability to cater an autonomous energy generation system by blending technology with economic and social aspects. More importantly the framework also addressed methodology for scaling a plant – circumstances such as post-grid arrival, rise in energy demand, conjunction with new generation plants required to meet the rise. Furthermore, the paper provides a commentary on business models and blend of financial indices suitable for decentralized system for long term financial viability for private sectors. GoN has been supporting rural micro-grids through Alternative Energy Promotion Centre (AEPC). Until recently, rural off-grid areas of Nepal had community led projects that would become defunct after arrival of national grid, fragmented planning, substandard technology, O&M issues etc. Now, with concept of private sector led projects opening up, the paper provides a skeleton for establishing mini-grid systems designed by negating those downsides that are practically feasible. This study was performed in various micro-grid sites in Makawanpur District. Research was carried out beforehand via online technology. This was to gain a sense of understanding before visiting the district. A field visit took place from April 24-26, 2018 to verify the research and to perform further analysis. Details were gathered firsthand through empathizing with locals, who filled out a questionnaire set Benchmarks were established in relation to technology, economics and social factors. Analysis was carried out, with the villages ranked against each other.


Author(s):  
Hailie Suk ◽  
Abhishek Yadav ◽  
John Hall

The interaction between technology and people is characterized by sociotechnical models. In the context of design, these types of systems are analyzed to increase productivity. The level of productivity is expected to increase as the technology evolves. Still, a lack of focus on adaptive design hinders the success of sociotechnical systems. The problem is evident in the relationship between microgrid technology and the residents of developing communities. An analysis of this type of sociotechnical system is analyzed in this paper. Rural villages in the developing world often lack access to the power grid. However, microgrids can provide electrical power in these locations. Power can be harnessed from renewable resources such as wind, solar, geothermal, and hydropower. Large batteries are used to store energy and buffer the electrical supply with the demand. The system powers security lighting, water pumps, and purification systems. Microgrids also power small machines that sustain agriculture in developing communities. The access to energy uplifts the developing community socially and economically. Still, as the community evolves, energy demand increases and the microgrid is unable to provide sufficient energy. A challenge in microgrid design involves the scalability of the system. Currently, there is no method for adapting the microgrid system to the increases in demand that occur over time. Accordingly, a mathematical framework is needed to support design decisions that could otherwise support adaptability. A demand model to predict the energy use for a composite rural village is presented. The predicted demand requirements are configured using a design optimization simulation model. These configurations are studied, and adaptive design techniques are devised through the process. The outcome of this study identifies a basic design methodology for microgrid design that is cognizant of scalability. Moreover, it identifies key attributes and relationships for the mathematical framework that supports the overarching goal of adaptable design.


2017 ◽  
Vol 3 (2) ◽  
pp. 13
Author(s):  
Kwabena Boafo Adom-Opare ◽  
Daniel Kweku Baah Inkoom

This paper applies a cross-sectional and prospective study designs to explore the nexus between energy forms in rural areas in Ghana and prevailing climate change impact indicators. The results indicate that rural energy forms in Ghana are mainly fuel wood and charcoal, with limited number of modern energy forms. These dominant energy forms affect and are affected by climate indices that were studied in this paper; which were rainfall, surface temperature and evaporation. There is continual increase in demand for fuel wood and charcoal across different altitude and economic zones in rural communities and this phenomenon will continue even with increased access to modern energy forms like electricity and LPG. The analysis also shows that with increasing demand and slow forest cover regeneration; there was a deficit in fuel wood supply even though there is surplus charcoal supply. This phenomenon threatens energy access and climate change in rural communities.


2019 ◽  
Vol 101 ◽  
pp. 02002
Author(s):  
Anna-Kaarina Seppälä ◽  
Nabin Raj Gaihre ◽  
Rinald Pereira

India currently has the biggest unelectrified population in the world. Renewable-based microgrids could provide a sustainable solution to providing universal energy access. However, the potential electricity demand in rural areas is unknown and hard to predict. This data is needed to analyse the purchasing power and potential market for microgrids, and to assess their success rate. This study surveyed 73 households in Arunachal Pradesh and Uttar Pradesh in India, to study the energy need in rural communities. The data shows that many unelectrified households are already using electrical appliances powered by small photovoltaic panels or batteries. The consumption is not income-generating but potential productive use cases are widely present. In Uttar Pradesh, small-scale microgrids are already providing homes with enough power for lighting and mobile chargers. An average unelectrified household was found to consume 2.48 kWhe monthly, and to spend ₹ 155 on energy services. Villagers wish for more appliances and more power, and have the required finances to pay for it.


2017 ◽  
Vol 4 (1) ◽  
pp. 1-9 ◽  
Author(s):  
E. O. Diemuodeke ◽  
A. Addo ◽  
I. Dabipi-Kalio ◽  
C. O. C. Oko ◽  
Y. Mulugetta

2021 ◽  
Vol 7 (2) ◽  
pp. 165-185
Author(s):  
Olorunjuwon David Adetayo ◽  
Gbenga John Oladehinde ◽  
Samson A. Adeyinka ◽  
Adejompo Fagbohunka

2020 ◽  
Vol 10 (18) ◽  
pp. 6266-6273
Author(s):  
Yalan Zhang ◽  
Zebin Yu ◽  
Ronghua Jiang ◽  
Jung Huang ◽  
Yanping Hou ◽  
...  

Excellent electrochemical water splitting with remarkable durability can provide a solution to satisfy the increasing global energy demand in which the electrode materials play an important role.


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