The Experts below are selected from a list of 300 Experts worldwide ranked by ideXlab platform
Joseph O. Dada - One of the best experts on this subject based on the ideXlab platform.
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towards understanding the benefits and challenges of smart micro grid for Electricity Supply system in nigeria
Renewable & Sustainable Energy Reviews, 2014Co-Authors: Joseph O. DadaAbstract:The poor state of Electricity Supply system in Nigeria is threatening the welfare and security of life and properties of millions of individuals with adverse economic consequences for the country. The inadequacy of the national grid, especially the inability of the Electricity generation capacity to match increasing demand in the country has led to increasing agitation for increased penetration of renewable energy sources (RESs) into the Electricity Supply mix. While great attention has been focused on the potential of RESs for Electricity generation in the country, little or no attention has been given to the application of Smart/Micro-Grid (SM-G) technologies to the ageing Nigeria grid infrastructures and electrification of the rural areas. The aim of this paper is to bring into focus the benefits and challenges of enabling SM-G in the Electricity Supply system in Nigeria. SM-G will bring benefits to the Electricity stakeholders in form of improvements in reliability, efficiency, economics, environment, security and safety. The paper gives an overview and reviews the current state of the Electricity Supply system in the country. It discusses the SM-G concepts and associated technologies, and highlights how they can help address the Electricity problems in the country. The challenges of applying these concepts in Nigeria context are also discussed. Enabling SM-G in the country will not only lead to improvement in the quality, efficiency and reliability of the Electricity grid, but also promote the provision of Electricity Supply to the remote rural areas using RESs.
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Towards understanding the benefits and challenges of Smart/Micro-Grid for Electricity Supply system in Nigeria
Renewable and Sustainable Energy Reviews, 2014Co-Authors: Joseph O. DadaAbstract:The poor state of Electricity Supply system in Nigeria is threatening the welfare and security of life and properties of millions of individuals with adverse economic consequences for the country. The inadequacy of the national grid, especially the inability of the Electricity generation capacity to match increasing demand in the country has led to increasing agitation for increased penetration of renewable energy sources (RESs) into the Electricity Supply mix. While great attention has been focused on the potential of RESs for Electricity generation in the country, little or no attention has been given to the application of Smart/Micro-Grid (SM-G) technologies to the ageing Nigeria grid infrastructures and electrification of the rural areas. The aim of this paper is to bring into focus the benefits and challenges of enabling SM-G in the Electricity Supply system in Nigeria. SM-G will bring benefits to the Electricity stakeholders in form of improvements in reliability, efficiency, economics, environment, security and safety. The paper gives an overview and reviews the current state of the Electricity Supply system in the country. It discusses the SM-G concepts and associated technologies, and highlights how they can help address the Electricity problems in the country. The challenges of applying these concepts in Nigeria context are also discussed. Enabling SM-G in the country will not only lead to improvement in the quality, efficiency and reliability of the Electricity grid, but also promote the provision of Electricity Supply to the remote rural areas using RESs.
Christian Breyer - One of the best experts on this subject based on the ideXlab platform.
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Global energy storage demand for a 100% renewable Electricity Supply
Energy Procedia, 2014Co-Authors: Guido Pleßmann, Matthias Erdmann, Markus Hlusiak, Christian BreyerAbstract:Abstract This study demonstrates – based on a dynamical simulation of a global, decentralized 100% renewable Electricity Supply scenario – that a global climate-neutral Electricity Supply based on the volatile energy sources photovoltaics (PV), wind energy (onshore) and concentrated solar power (CSP) is feasible at decent cost. A central ingredient of this study is a sophisticated model for the hourly electric load demand in >160 countries. To guarantee matching of load demand in each hour, the volatile primary energy sources are complemented by three Electricity storage options: batteries, high-temperature thermal energy storage coupled with steam turbine, and renewable power methane (generated via the Power to Gas process) which is reconverted to Electricity in gas turbines. The study determines – on a global grid with 1°x1° resolution – the required power plant and storage capacities as well as the hourly dispatch for a 100% renewable Electricity Supply under the constraint of minimized total system cost (LCOE). Aggregating the results on a national level results in an levelized cost of Electricity (LCOE) range of 80-200 EUR/MWh (on a projected cost basis for the year 2020) in this very decentralized approach. As a global average, 142 EUR/MWh are found. Due to the restricted number of technologies considered here, this represents an upper limit for the Electricity cost in a fully renewable Electricity Supply.
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global energy storage demand for a 100 renewable Electricity Supply
Energy Procedia, 2014Co-Authors: Guido Plesmann, Matthias Erdmann, Markus Hlusiak, Christian BreyerAbstract:Abstract This study demonstrates – based on a dynamical simulation of a global, decentralized 100% renewable Electricity Supply scenario – that a global climate-neutral Electricity Supply based on the volatile energy sources photovoltaics (PV), wind energy (onshore) and concentrated solar power (CSP) is feasible at decent cost. A central ingredient of this study is a sophisticated model for the hourly electric load demand in >160 countries. To guarantee matching of load demand in each hour, the volatile primary energy sources are complemented by three Electricity storage options: batteries, high-temperature thermal energy storage coupled with steam turbine, and renewable power methane (generated via the Power to Gas process) which is reconverted to Electricity in gas turbines. The study determines – on a global grid with 1°x1° resolution – the required power plant and storage capacities as well as the hourly dispatch for a 100% renewable Electricity Supply under the constraint of minimized total system cost (LCOE). Aggregating the results on a national level results in an levelized cost of Electricity (LCOE) range of 80-200 EUR/MWh (on a projected cost basis for the year 2020) in this very decentralized approach. As a global average, 142 EUR/MWh are found. Due to the restricted number of technologies considered here, this represents an upper limit for the Electricity cost in a fully renewable Electricity Supply.
Pierre Le Roux - One of the best experts on this subject based on the ideXlab platform.
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Exploring the Nexus of Electricity Supply and Economic Growth in South Africa
International Journal of Energy Economics and Policy, 2017Co-Authors: Hlalefang Khobai, Gift Mugano, Pierre Le RouxAbstract:This paper investigates the causal relationship between Electricity Supply and economic growth in South Africa using annual data covering the period between 1985 and 2014. This paper used a multivariate framework which included trade openness, Electricity price, capital and employment as intermittent variables. The autoregressive distributed lag bound testing was employed to establish the long run relationship between these variables. The vector error correction model (VECM) was estimated to carry out the test of causality. The results support the existence of co-integration among the variables. The VECM established a bidirectional causality flowing between Electricity Supply and economic growth. This shows that the policy makers should prioritise building capacity additions and infrastructure development of the South African Electricity Supply industry, as this will stimulate economic growth and increase Electricity in the country. The findings further show that Electricity prices, trade openness, employment and capital Granger-cause economic growth and Electricity Supply. This result means that increased economic growth and Electricity Supply is dependent on the degree of trade openness, employment levels in the country and the amount of investment.
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An Investigation into the Electricity Supply and Economic Growth Nexus for South Africa
International Journal of Energy Economics and Policy, 2016Co-Authors: Hlalefang Khobai, Sanderson Abel, Pierre Le RouxAbstract:A booming industrial sector helps to complement and sustain continued economic growth. On the other hand an efficient and steady Supply of Electricity is of paramount importance for the growth of an industrial sector of a country as it acts as catalyst for economic growth. The study sought to examine the causal relationship between Electricity Supply and economic growth in South Africa for the period 1990-2012. The study incorporated Electricity power outages and employment to form a multivariate framework using a vector error correction model (VECM). The study established a unidirectional causality flowing from Electricity Supply to economic growth. The result implies that Electricity Supply boosts economic growth in South Africa. There is need for the policy makers to ensure they put in place measures that can improve the Electricity Supply in the country through a reduction in power outages for the industrial sector. Keywords: Electricity Supply, Economic growth, Causality test, Nexus JEL Classifications: C22; O13; Q14
Oddbjørn Gjerde - One of the best experts on this subject based on the ideXlab platform.
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Risk Analysis of Electricity Supply
Springer Series in Reliability Engineering, 2012Co-Authors: Gerd Kjolle, Oddbjørn GjerdeAbstract:Society is critically dependent on a reliable Electricity Supply to maintain its functionality. Electricity Supply interruptions lead to direct consequences for the Electricity users and will in general have an impact on dependent infrastructures and their services. This chapter describes a quantitative analytical approach for risk analysis of Electricity Supply. In this approach, the consequences of failures in the Electricity system are analysed in terms of Electricity Supply interruptions to delivery points (DPs) serving for instance societal critical functions or other infrastructures. In a cross-sector risk analysis, this approach can be used in a detailed analysis for instance as input to cascade diagrams in the risk analysis of cascading failures and interdependencies with other infrastructures.
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Risk analysis of critical infrastructures emphasizing Electricity Supply and interdependencies
Reliability Engineering & System Safety, 2012Co-Authors: Gerd Kjolle, Ingrid Bouwer Utne, Oddbjørn GjerdeAbstract:Abstract Failures in critical infrastructures can cause major damage to society. Wide-area interruptions (blackouts) in the Electricity Supply system have severe impacts on societal critical functions and other critical infrastructures, but there is no agreed-upon framework on how to analyze and predict the reliability of Electricity Supply. Thus, there is a need for an approach to cross-sector risk analyses, which facilitates risk analysis of outages in the Electricity Supply system and enables investigation of cascading failures and consequences in other infrastructures. This paper presents such an approach, which includes contingency analysis (power flow) and reliability analysis of power systems, as well as use of a cascade diagram for investigating interdependencies. A case study was carried out together with the Emergency Preparedness Group in the city of Oslo, Norway and the network company Hafslund Nett. The case study results highlight the need for cross-sector analyses by showing that the total estimated societal costs are substantially higher when cascading effects and consequences to other infrastructures are taken into account compared to only considering the costs of Electricity interruptions as seen by the network company. The approach is a promising starting point for cross-sector risk analysis of Electricity Supply interruptions and consequences for dependent infrastructures.
Hlalefang Khobai - One of the best experts on this subject based on the ideXlab platform.
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Exploring the Nexus of Electricity Supply and Economic Growth in South Africa
International Journal of Energy Economics and Policy, 2017Co-Authors: Hlalefang Khobai, Gift Mugano, Pierre Le RouxAbstract:This paper investigates the causal relationship between Electricity Supply and economic growth in South Africa using annual data covering the period between 1985 and 2014. This paper used a multivariate framework which included trade openness, Electricity price, capital and employment as intermittent variables. The autoregressive distributed lag bound testing was employed to establish the long run relationship between these variables. The vector error correction model (VECM) was estimated to carry out the test of causality. The results support the existence of co-integration among the variables. The VECM established a bidirectional causality flowing between Electricity Supply and economic growth. This shows that the policy makers should prioritise building capacity additions and infrastructure development of the South African Electricity Supply industry, as this will stimulate economic growth and increase Electricity in the country. The findings further show that Electricity prices, trade openness, employment and capital Granger-cause economic growth and Electricity Supply. This result means that increased economic growth and Electricity Supply is dependent on the degree of trade openness, employment levels in the country and the amount of investment.
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An Investigation into the Electricity Supply and Economic Growth Nexus for South Africa
International Journal of Energy Economics and Policy, 2016Co-Authors: Hlalefang Khobai, Sanderson Abel, Pierre Le RouxAbstract:A booming industrial sector helps to complement and sustain continued economic growth. On the other hand an efficient and steady Supply of Electricity is of paramount importance for the growth of an industrial sector of a country as it acts as catalyst for economic growth. The study sought to examine the causal relationship between Electricity Supply and economic growth in South Africa for the period 1990-2012. The study incorporated Electricity power outages and employment to form a multivariate framework using a vector error correction model (VECM). The study established a unidirectional causality flowing from Electricity Supply to economic growth. The result implies that Electricity Supply boosts economic growth in South Africa. There is need for the policy makers to ensure they put in place measures that can improve the Electricity Supply in the country through a reduction in power outages for the industrial sector. Keywords: Electricity Supply, Economic growth, Causality test, Nexus JEL Classifications: C22; O13; Q14
