Dendrobiomass Based Power Generation - A PCS (Production to Consumption System) Approach in Tamil Nadu, India

2013 ◽  
Vol 36 (1) ◽  
pp. 31-40
Author(s):  
P. Durairasu ◽  
K. Parthiban

Bioresources particularly the dendro energy resources play significant role in meeting the energy requirement of both domestic and industrial requirements. With the improvement in the technology of conversion and utilization over the last three decades dendro energy resources have reached a status of being considered as commercial energy resources and are prioritized for use in decentralized biomass based power generation projects. However, many biomass based power plants started in the country in general and the state of Tamil Nadu in particular have exhibited various constraints which resulted in uncertained power generation. The reasons are numerous but the key factors are non-availability of quality (High Calorific Value) raw material, fragmented land use pattern, lack of site specific HDSR models, unorganized supply chain and lack of partnership among various stake holders. Against this back drop, the current project has conceived a concept of consortium mode dendro energy farming by comprehensively involving all levels of stake holders viz., research institutes for technology development for dendro energy resources, biomass power plant for assuring minimum support price and to facilitate contract farming, the farmers to grow energy trees identified by the research institutes and adopt precision silvicultural technology and lastly the financial institution to provide credit facilities to energy plantation growers. This consortium has been successfully introduced and implemented in Tamil Nadu in association with Auromira Energy Company Limited which have three Biomass Power Plants with an installed capacity of 35.5 MW. Through this consortium, the research institute has identified high yielding energy rich species and developed HDSR models suitable for varied agroclimatic zones. This consortium has introduced contract dendro energy farming in the state following farm forestry and captive model approaches. The various contract farming models land lease, tree share and income share models have been introduced through this consortium to benefit the growers and the biomass based power plants. In a holistic perspective the consortium has reduced the impact of multipartite supply chain in to a bi-partite, tri-partite and quad partite model supply chain thereby helped to augment the Production to Consumption System (PCS). This model can suitably be modified to meet the wood requirement of other wood based industries. This paper discusses the constraints and the interventions made to augment dendrobioresources to generate power which are from clean and green bioresources.

Water Policy ◽  
2006 ◽  
Vol 8 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Ramesh Bhatia ◽  
John Briscoe ◽  
R. P. S. Malik ◽  
Lindy Miller ◽  
Smita Misra ◽  
...  

The state of Tamil Nadu, India, is in the grips of a water crisis, with demand far outstripping supply. As the economy of the state grows, this crisis is going to become ever more serious. To date the focus of state water policy has been on trying to augment supplies, from within the state (even from desalinization) and from neighboring states. In addition, the water use is regulated in a way that does not encourage the highest value uses. International experience shows that supply-side measures must be complemented by demand-side measures and that practice must move away from fixed, command-and-control allocation policies towards flexible allocation mechanisms, which facilitate the voluntary movement of water from low to high-value uses. This study addresses the question of whether such a change in allocation policies is worth doing. It addresses this question by developing optimization models for each of the 17 river basins in Tamil Nadu (including an assessment of the economic value of water in different end-uses – agriculture, domestic and industry), then using an input–output model embedded in a social accounting matrix (SAM), to assess the impact of these changes on the state economy and on different rural and urban employment groups. The results suggest that a shift to a flexible water allocation system would bring major environmental, economic and social benefits to the state. Compared with the current “fixed sectoral allocation” policy, a flexible allocation policy would, in 2020, result in 15% less overall water used; 24% less water pumped from aquifers; 20% higher state income; with all strata, rich and poor, benefiting similarly, with one important exception, that of agricultural laborers.


2021 ◽  
Vol 12 (3) ◽  
pp. 631
Author(s):  
Sergey BESPALYY

The growth of renewable energy sources (RES) shows the desire of the government of Kazakhstan to meet challenges that affect the welfare and development of the state. National targets, government programs, policies influence renewable energy strategies. In the future, renewable energy technologies will act as sources of a green economy and sustainable economic growth. The state policy in the field of energy in Kazakhstan is aimed at improving the conditions for the development and support of renewable energy sources, amendments are being made to provide for the holding of auctions for new RES projects, which replaces the previously existing system of fixed tariffs. It is expected that the costs of traditional power plants for the purchase of renewable energy will skyrocket, provided that the goals in the field of renewable generation are achieved. This article provides an assessment of international experience in supporting renewable energy sources, as well as analyzes the current situation in the development of renewable energy in Kazakhstan and the impact on sustainable development and popularization of the «green» economy. The study shows that by supporting the development of renewable energy sources, economic growth is possible, which is achieved in an environmentally sustainable way.


2016 ◽  
Vol 18 (04) ◽  
pp. 1650014 ◽  
Author(s):  
Fouad El Ouardighi ◽  
Gary Erickson ◽  
Dieter Grass ◽  
Steffen Jørgensen

The objective of the paper is to study how wholesale price and revenue sharing contracts affect operations and marketing decisions in a supply chain under different dynamic informational structures. We suggest a differential game model of a supply chain consisting of a manufacturer and a single retailer that agree on the contract parameters at the outset of the game. The model includes key operational and marketing activities related to a single product in the supply chain. The manufacturer sets a production rate and the rate of advertising efforts while the retailer chooses a purchase rate and the consumer price. The state of the game is summarized in the firms’ backlogs and the manufacturer’s advertising goodwill. Depending on whether the supply chain members have and share state information, they may either make decisions contingent on the current state of the game (feedback Nash strategy), or precommit to a plan of action during the whole game (open-loop Nash strategy). Given a contract type, the impact of the availability of information regarding the state of the game on the firms’ decisions and payoffs is investigated. It is shown that double marginalization can be better mitigated if the supply chain members adopt a contingent strategy under a wholesale price contract and a commitment strategy under a revenue sharing contract.


2022 ◽  
Vol 7 ◽  
pp. 9
Author(s):  
Seyed Amir Kaboli ◽  
Reyhaneh Nazmabadi

There continues to be significant attention and investment in wind power generation, which can supply a high percentage of the global demand for renewable energy if harvested efficiently. The research study is based on techno-economic analysis of the feasibility of implementing wind power generation in Kuwait with a power generation capacity of 105 MW based on 50 wind turbines, which has a major requirement for clean energy. The study focused on three main areas of analysis and numerical modeling using the RETScreen software tool. The first area involved evaluating the performance and efficacy of generating wind power by collecting, analyzing, and modeling data on observed wind levels, wind turbine operation, and wind power generation. The second area comprised an environmental impact review to assess the environmental benefits of implementing wind power. The third area involved economic analysis of installing wind power in Kuwait. The analysis was undertaken to assess the energy recovery time for wind energy and determine the mitigation of global warming and pollution levels, the decrease of toxic emissions, and any cost savings from implementing clean energy systems in Kuwait. Additionally, sensitivity analysis was undertaken to determine the impact of certain variables in the modeling process. The results are used to estimate that the energy price would be $0.053 per kWh for a power generation capacity of 105 MWh based on an initial cost of $168 million and O&M of $5 million for 214,000 MWh of electricity exported to the grid. Moreover, the wind turbine farm will potentially avoid the emission of approximately 1.8 million tonnes of carbon dioxide per year, thereby saving approximately $9 million over 20 years spent installing carbon capture systems for conventional power plants. The wind farm containing a simple wind turbine is estimated to have a payback period of 9.1 years.


Author(s):  
S. Can Gülen ◽  
Indrajit Mazumder

Cost of electricity (COE) is the most widely used metric to quantify the cost-performance trade-off involved in comparative analysis of competing electric power generation technologies. Unfortunately, the currently accepted formulation of COE is only applicable to comparisons of power plant options with the same annual electric generation (kilowatt-hours) and the same technology as defined by reliability, availability, and operability. Such a formulation does not introduce a big error into the COE analysis when the objective is simply to compare two or more base-loaded power plants of the same technology (e.g., natural gas fired gas turbine simple or combined cycle, coal fired conventional boiler steam turbine, etc.) and the same (or nearly the same) capacity. However, comparing even the same technology class power plants, especially highly flexible advanced gas turbine combined cycle units with cyclic duties, comprising a high number of daily starts and stops in addition to emissions-compliant low-load operation to accommodate the intermittent and uncertain load regimes of renewable power generation (mainly wind and solar) requires a significant overhaul of the basic COE formula. This paper develops an expanded COE formulation by incorporating crucial power plant operability and maintainability characteristics such as reliability, unrecoverable degradation, and maintenance factors as well as emissions into the mix. The core impact of duty cycle on the plant performance is handled via effective output and efficiency utilizing basic performance correction curves. The impact of plant start and load ramps on the effective performance parameters is included. Differences in reliability and total annual energy generation are handled via energy and capacity replacement terms. The resulting expanded formula, while rigorous in development and content, is still simple enough for most feasibility study type of applications. Sample calculations clearly reveal that inclusion (or omission) of one or more of these factors in the COE evaluation, however, can dramatically swing the answer from one extreme to the other in some cases.


2020 ◽  
Vol 174 ◽  
pp. 04055
Author(s):  
Valeri Kopein ◽  
Andrey Kopein ◽  
Tatjana Kostina ◽  
Elena Filimonova

The article examines the peculiarities of the relationship between energy security and innovation processes in the industrial region. Systemized approaches to the methodology for calculating the level of financial security have been consolidated. It is concluded that it is appropriate to use an indicative method of energy security analysis as a classic epistemological variant of the study of the energy security phenomenon. As a result of the assessment of the energy security level of the Kemerovo (Kuzbass) region it is concluded that all indicators of energy security except a certain degree of depreciation of the fixed assets of the fuel and energy complex enterprises have acceptable pre-crisis values. According to the share of own sources in the balance of electricity, the disposable capacity of power plants and the capacity of the largest power plant in Kuzbass region is in the pre-crisis zone, which determines its energy independence. It is noted that the share of coal as the dominant fuel resource in the structure of fuel consumption is at the pre-crisis level. The energy supply is emphasized to cover not only the issues of production, supply of energy resources and availability of energy sources, but also the aspects of the ecology and energy resources accounting. This determines the necessity to adjust the methodology for determining the energy security. It is proposed to supplement the methodology of assessing the level of energy security with indicators that take into account the diversification of sources of electricity generation both as a main resource and the possibility of commercial accounting of electricity consumption. The statement about the impact of the innovation level of energy on the level of region energy security and the pace of innovation process is justified.


Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2802 ◽  
Author(s):  
Kaiyan Luo ◽  
Xingping Zhang ◽  
Qinliang Tan

China has a huge potential of biomass power generation since it is a big agricultural producer and abundant in agriculture straw. However, the current straw supply system cannot guarantee the feedstock sufficiency for biomass power plants. The main reason is the high costs of straw collection and transportation because farmers are scattered across the country and farming in a small-scaled method for self-support. This study aims at solving the issue with the introduction of China’s rural official organizations to collect agriculture straw in a centralized way and to share benefits with farmers. We apply the approach of multi-agent modeling and simulation to analyze the farmer’s participation behavior within a co-opetition supply strategy after the rural official organizations are incorporated. The results demonstrate that farmers’ participation is positively affected by the cooperative enthusiasm of rural official organizations. In addition to those basic factors, such as straw price, transportation cost, and shipping distance, the benefit sharing policy has a significant impact on the equilibrium percentage of the cooperative farmers. We recommend that the Chinese central government encourage and support rural official organizations to participate in the agriculture straw supply chain, and the benefit sharing policy should be implemented with the precaution against free rides.


Author(s):  
Justin Zachary ◽  
Natasha Jones ◽  
Aslan Golant

While major design efforts are dedicated to the development and improvement of solar energy collection technologies, the downstream power generation cycle is often considered a straightforward exercise. The diverse nature of the heat sources and their cyclic behavior make the design of the turbo-machinery and associated balance-of-plant equipment for solar plants quite different from the design for use in conventional fired power plants. The high capital cost of these renewable energy facilities and the limited hours of operation are powerful drivers to increase equipment efficiency and reduce the startup time. This paper reviews the state of the art regarding hardware selection and design considerations for tower, trough, and Fresnel solar thermal technologies from an engineering, procurement, and construction (EPC) contractor’s perspective. It also describes the benefits and limitations of each method and the impact of flow and temperature on cycle efficiency. In particular, it addresses the turbine design challenges for repeated fast startups and plant size optimization. Special emphasis is given to heat sink design in consideration of water scarcity. In conclusion, the paper provides recommendations for achieving a balance between the economics of generation and cost of equipment and reliability for the downstream power generation system.


Author(s):  
Sajjad Akbar ◽  
Shahab Khusnood

Electricity is the engine for the growth of economy of any country. Total installed electricity generation capacity of Pakistan is presently approx 20,000 MW as given in Table-1. Despite this, almost 40% of the population is without electricity. Pakistan has been blessed with tremendous resources for electrical power generation with hydel, coal, renewable energy resources and Nuclear power. Hydel, coal potential of more than 40,000 MW and 10,000 MW are available but only 15% of hydroelectric potential has been harnessed so for where as only 150 MW power plant on indigenous coal has been set up. To exploit Pakistan hydel and coal resources for power generation large investments are needed which Pakistan economy can not afford. Govt. of Pakistan has created an organization of private power and infrastructure board (PPIB) to facilitate private sector in the participation of power generator. PPIB is tapping the resources and facilitating the private sector for establishment of power projects. Pakistan is collaborating with China for establishment of Nuclear Power Plants and plan to generate up to 10,000 MW by year 2025. Renewable energy resources are also required to be tapped. This paper will focus on the Pakistan power generation potential by utilizing local resources keeping in view the next 20 year supply and demand position.


2019 ◽  
Vol 8 (2) ◽  
pp. 111-116
Author(s):  
S. Fazal Daoud Firdausi

Tourism development in any region is influenced by political culture and processes. It is inherently linked to the policies, agenda, decisions, outcomes and the type of government responsible for shaping policies related to tourism. The paper tries to find out the impact of political culture on tourism development. It also aims to assess the role of political culture in influencing tourist motivation through the data collected from urban tourist centres of the Southern Indian state of Tamil Nadu. Mixed method, consisting qualitative interpretation as well as descriptive and inferential statistics has been used to draw conclusions. It has come out from the study that the political culture of Tamil Nadu state may be characterized as a mix of subject and participant culture, where latter dominates the former. It can be concluded that the people of the state have always participated in political process through voting and changing the regime from time to time. The study also indicates that most of the people of the state are aware of their political obligations and actively participate in social campaigns and civic life. It can be concluded that the existing political culture in the state has compelled the political elite to think and work for the development of the state, including tourism development.


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