scholarly journals Estimating the Impact of Restructuring on Electricity Generation Efficiency: The Case of the Indian Thermal Power Sector

2011 ◽  
Author(s):  
Kabir Malik ◽  
Maureen Cropper ◽  
Alexander Limonov ◽  
Anoop Singh
2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Thaddeus C. Eze

This paper examines the effect of the electricity power sector reform Act on industrialization in Nigeria. Power has been a recurring problem in Nigeria in what has been commonly referred to as the electricity gap. The federal government of Nigeria came up with a comprehensive legislation to boost power supply. The implementation of this legislation has led to a partial privatization of the hitherto fully state-owned parastatal that was responsible for electricity generation and supply. The paper examines the outcome of the Electricity Power Sector Reform Act (EPSRA), 2005 on the rate and level of industrialization in Nigeria. It was found that the Act has not, in any way, significantly improved electricity supply in Nigeria. Consequently, Nigerian industries are still groaning under increased cost of production occasioned largely by epileptic power supply. The absence of prepaid digital meters for the billing of many electricity consumers has also worsened the plight of industries that use electricity, and which are forced to pay for electricity supplied under an estimated billing system. The study adopted the doctrinal research approach.


2017 ◽  
Vol 63 (1) ◽  
pp. 104-123
Author(s):  
Sanjiv Shankar

The article examines in detail, as a test case, the impact of direct tax incentives on the power sector in India. The Indian power sector is regulated and has been the greatest beneficiary of the various tax incentives. Direct taxes foregone to the power companies alone are estimated to be ₹700,000 million during the fiscal year 2006–2007 to 2014–2015. The power companies in India have enjoyed profit-linked tax holidays (Section 80 IA), accelerated depreciation (Section 32), easy accessibility of external commercial borrowings and a low withholding tax of 5 per cent on overseas borrowing. The study does a ‘three-way examination’ of the impact of the tax incentives by examining: (i) macroeconomic indicators, (ii) firm level data and (iii) micro-indicators. The findings are that (i) there is no evidence of any real benefits accruing to the economy either in the form of increased foreign direct investment (FDI) flows to the sector, gross fixed capital formation (GFCF) in the sector or commensurate growth in electricity sector vis-à-vis other sectors of the economy or in the economy as a whole due to the several decades of direct tax incentives to the power sector in India; (ii) clearly, the loss of revenue from the tax incentives is real and substantial and (iii) the financial ratios of the three power companies (National Thermal Power Corporation [NTPC], Tata Power and Reliance Energy) indicate that they are capable of raising resources on their own and the theory of market failure may not apply to them.


2014 ◽  
Vol 962-965 ◽  
pp. 1757-1761
Author(s):  
Jie Zhao ◽  
Can Wang ◽  
Min Hua Ye

Ultra-high voltage (UHV) inter-regional power transmissions not only can upgrade the optimal allocation ability of electricity energy in a wider range, but also can link the renewable energy power plant center and electricity load center. We use a bottom-up optimization model based on six regional power grids to simulate the impact of inter-regional transmission on energy structure in china’s power sector. The result shows that it maybe not has the positive effect as we had expected, the main consequence of the inter-regional power transmission is the thermal power generation migration among different regions, which has no significant effect on promoting renewable energy in the absence of other incentive policies. As a new form of inter-regional energy deployment, UHV inter-regional power transmission will change our future regional energy use, as well as air emissions, greenhouse gas emissions and other development path, so we also put SO2, NOx and CO2 emission control into consideration.


Author(s):  
Gaurav Nanda ◽  
Sangeeta Yamgar ◽  
S.C. Srivastava ◽  
S.N. Singh ◽  
Praveen Gupta ◽  
...  

Concentration of greenhouse gases in the atmosphere is steadily increasing leading to global warming. India is expected to be one of the major contributors to Green House Gases (GHGs) due to increased share of thermal power generation, which is a major contributor to carbon dioxide (CO2) emission. One way to limit these emissions is by implementing some economic instruments like carbon tax or energy tax. This study has been carried out to analyze the impact of carbon tax on the complete Indian power sector network. An Integrated Resource Planning and Analysis (IRPA) model and CPLEX software has been used to carry out the present study.


Water ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2482
Author(s):  
Julia Terrapon-Pfaff ◽  
Willington Ortiz ◽  
Peter Viebahn ◽  
Ellen Kynast ◽  
Martina Flörke

Electricity generation requires water. With the global demand for electricity expected to increase significantly in the coming decades, the water demand in the power sector is also expected to rise. However, due to the ongoing global energy transition, the future structure of the power supply—and hence future water demand for power generation—is subject to high levels of uncertainty, because the volume of water required for electricity generation varies significantly depending on both the generation technology and the cooling system. This study shows the implications of ambitious decarbonization strategies for the direct water demand for electricity generation. To this end, water demand scenarios for the electricity sector are developed based on selected global energy scenario studies to systematically analyze the impact up to 2040. The results show that different decarbonization strategies for the electricity sector can lead to a huge variation in water needs. Reducing greenhouse gas emissions (GHG) does not necessarily lead to a reduction in water demand. These findings emphasize the need to take into account not only GHG emission reductions, but also such aspects as water requirements of future energy systems, both at the regional and global levels, in order to achieve a sustainable energy transition.


Author(s):  
Harshkumar Patel ◽  
Yogesh Patel

Now-a-days energy planners are aiming to increase the use of renewable energy sources and nuclear to meet the electricity generation. But till now coal-based power plants are the major source of electricity generation. Disadvantages of coal-based thermal power plants is disposal problem of fly ash and pond ash. It was earlier considered as a total waste and environmental hazard thus its use was limited, but now its useful properties have been known as raw material for various application in construction field. Fly ash from the thermal plants is available in large quantities in fine and coarse form. Fine fly ash is used in construction industry in some amount and coarse fly ash is subsequently disposed over land in slurry forms. In India around 180 MT fly is produced and only around 45% of that is being utilized in different sectors. Balance fly ash is being disposed over land. It needs one acre of land for ash disposal to produce 1MW electricity from coal. Fly ash and pond ash utilization helps to reduce the consumption of natural resources. The fly ash became available in coal based thermal power station in the year 1930 in USA. For its gainful utilization, scientist started research activities and in the year 1937, R.E. Davis and his associates at university of California published research details on use of fly ash in cement concrete. This research had laid foundation for its specification, testing & usages. This study reports the potential use of pond-ash and fly-ash as cement in concrete mixes. In this present study of concrete produced using fly ash, pond ash and OPC 53 grade will be carried. An attempt will be made to investigate characteristics of OPC concrete with combined fly ash and pond ash mixed concrete for Compressive Strength test, Split Tensile Strength test, Flexural Strength test and Durability tests. This paper deals with the review of literature for fly-ash and pond-ash as partial replacement of cement in concrete.


2020 ◽  
Vol 13 (1) ◽  
pp. 265
Author(s):  
Mine Isik ◽  
P. Ozge Kaplan

A thorough understanding of the drivers that affect the emission levels from electricity generation, support sound design and the implementation of further emission reduction goals are presented here. For instance, New York State has already committed a transition to 100% clean energy by 2040. This paper identifies the relationships among driving factors and the changes in emissions levels between 1990 and 2050 using the logarithmic mean divisia index analysis. The analysis relies on historical data and outputs from techno-economic-energy system modeling to elucidate future power sector pathways. Three scenarios, including a business-as-usual scenario and two policy scenarios, explore the changes in utility structure, efficiency, fuel type, generation, and emission factors, considering the non-fossil-based technology options and air regulations. We present retrospective and prospective analysis of carbon dioxide, sulfur dioxide, nitrogen oxide emissions for the New York State’s power sector. Based on our findings, although the intensity varies by period and emission type, in aggregate, fossil fuel mix change can be defined as the main contributor to reduce emissions. Electricity generation level variations and technical efficiency have relatively smaller impacts. We also observe that increased emissions due to nuclear phase-out will be avoided by the onshore and offshore wind with a lower fraction met by solar until 2050.


2019 ◽  
Vol 88 (2) ◽  
pp. 20902
Author(s):  
O. Achkari ◽  
A. El Fadar

Parabolic trough collector (PTC) is one of the most widespread solar concentration technologies and represents the biggest share of the CSP market; it is currently used in various applications, such as electricity generation, heat production for industrial processes, water desalination in arid regions and industrial cooling. The current paper provides a synopsis of the commonly used sun trackers and investigates the impact of various sun tracking modes on thermal performance of a parabolic trough collector. Two sun-tracking configurations, full automatic and semi-automatic, and a stationary one have numerically been investigated. The simulation results have shown that, under the system conditions (design, operating and weather), the PTC's performance depends strongly on the kind of sun tracking technique and on how this technique is exploited. Furthermore, the current study has proven that there are some optimal semi-automatic configurations that are more efficient than one-axis sun tracking systems. The comparison of the mathematical model used in this paper with the thermal profile of some experimental data available in the literature has shown a good agreement with a remarkably low relative error (2.93%).


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