Biogas Power System: A Step towards Utilization of Clean Renewable Energy Resource for Providing Optimum Energy Needs of Rural Areas in India

2014 ◽  
Vol 592-594 ◽  
pp. 2336-2340
Author(s):  
Disha Dewangan ◽  
Shobha Lata Sinha ◽  
Jasinta Poonam Ekka
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Rural Areas ◽  
Operating Cost ◽  
Energy Resource ◽  
Free Atmosphere ◽  
Energy Needs ◽  
Optimum Energy ◽  
Alternative Sources ◽  
Break Even Point

The depletion of fossil fuel resources on a worldwide basis has necessitated an urgent search for alternative sources like biomass to meet our present demands. The present work deals with a Bio-gas power system for the generation of power in rural areas. A Bio-gas operated power plant is designed by calculating the electrical load requirement of the township. Bio-gas system serves dual purpose i.e for cooking and also for electricity. The economic analysis, payback period and Break-even point have been analyzed for the whole system. In addition carbon credit analysis has been done for the system. In the present scenario, Biogas system has been designed to increase the system efficiency and the use of renewable energy with very less operating cost and pollution free atmosphere. Keywords:Biogas,economicanalysis,paybackperiod,break-even point,carboncredit.

scholarly journals A Review of Virtual Inertia Techniques for Renewable Energy-Based Generators

2020 ◽  
Author(s):  
Ana Fernández-Guillamón ◽  
Emilio Gómez-Lázaro ◽  
Eduard Muljadi ◽  
Ángel Molina-Garcia
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
Power System ◽  
Power Plants ◽  
Control Strategies ◽  
Renewable Energy Sources ◽  
Extensive Discussion ◽  
Renewable Sources ◽  
Virtual Inertia ◽  
Alternative Sources

Over recent decades, the penetration of renewable energy sources (RES), especially photovoltaic and wind power plants, has been promoted in most countries. However, as these both alternative sources have power electronics at the grid interface (inverters), they are electrically decoupled from the grid. Subsequently, stability and reliability of power systems are compromised. Inertia in power systems has been traditionally determined by considering all the rotating masses directly connected to the grid. Thus, as the penetration of renewable units increases, the inertia of the power system decreases due to the reduction of directly connected rotating machines. As a consequence, power systems require a new set of strategies to include these renewable sources. In fact, ‘hidden inertia,’ ‘synthetic inertia’ and ‘virtual inertia’ are terms currently used to represent an artificial inertia created by inverter control strategies of such renewable sources. This chapter reviews the inertia concept and proposes a method to estimate the rotational inertia in different parts of the world. In addition, an extensive discussion on wind and photovoltaic power plants and their contribution to inertia and power system stability is presented.

scholarly journals Potensi Pengembangan Kemiri Sunan (Reutealis trisperma (Blanco) Airy Shaw)di Lahan Terdegradasi

Perspektif ◽  
2016 ◽  
Vol 14 (2) ◽  
pp. 87 ◽  
Author(s):  
DIBYO PRANOWO ◽  
MAMAN HERMAN ◽  
. SYAFARUDDIN
Keyword(s):  
Renewable Energy ◽  
Economic Value ◽  
Raw Material ◽  
Biodiesel Production ◽  
Degraded Land ◽  
Marginal Lands ◽  
Productivity Level ◽  
Oil Crops ◽  
Energy Needs ◽  
Alternative Sources

<p>ABSTRAK<br /><br />Kemiri sunan (Reutealis trisperma (Blanco) Airy Shaw) merupakan salah satu jenis tanaman penghasil minyak nabati yang memiliki potensi besar sebagai sumber bahan baku untuk biodiesel. Tingkat produktivitas yang dapat mencapai 8-9 ton minyak kasar atau setara dengan 6-8 ton biodiesel/ha/tahun memiliki nilai strategis terkait dengan program pemerintah dalam mencari alternatif sumber energi baru yang terbarukan. Pengembangan sumber energi terbarukan seperti yang berasal dari minyak nabati kemiri sunan merupakan salah satu alternatif dalam upaya memenuhi defisit energi untuk keperluan domestik sehingga Indonesia dapat keluar dari himpitan krisis energi. Lahan-lahan yang telah terdegradasi di Indonesia dari tahun ke tahun luasnya semakin bertambah baik karena faktor alam maupun karena eksploitasi yang tidak terkendali. Disisi lain pengembangan tanaman sumber BBN terkendala karena keterbatasan lahan. Kajian yang telah dilakukan secara intensif terhadap karakteristik tanaman, minyak dan biodiesel yang dihasilkannya, serta daya adaptasinya yang sangat luas terhadap beragam agroekosistem yang ada di Indonesia, tanaman kemiri sunan memberikan harapan yang baik disamping sebagai sumber bahan baku biodiesel, juga dapat berfungsi sebagai tanaman konservasi untuk mereklamasi lahan-lahan marginal yang telah terdegradasi. Disamping itu, pengembangan tanaman kemiri sunan di lahan yang telah terdegradasi tidak hanya akan dapat meningkatkan nilai ekonomi lahan tersebut, tetapi juga dapat dijadikan tanaman yang bernilai ekonomi tinggi, serta mampu menyediakan kebutuhan energi bagi masyarakat sekitar maupun ke wilayah yang lebih luas. <br />Kata kunci: Kemiri sunan, biodiesel, energi baru terbarukan, lahan terdegradasi, lahan bekas tambang.<br /><br />ABSTRACT</p><p>The Multiple Benefits of Developing Kemiri Sunan (Reutealis trisperma (Blanco) Airy Shaw) In Degraded Land<br /><br />Kemiri sunan (Reutealis trisperma (Blanco) Airy Shaw) is one kind of vegetable oil crops that have great potential as a source of raw material for biodiesel. The productivity level that can reach 8-9 tons of crude oil, equivalent to 6-8 tons of biodiesel/ha/year make as a strategic commodity associated with government programs to find alternative sources of renewable energy. Development of renewable energy such as from vegetable oils of kemiri sunan is one of the alternatives in an effort to solve the deficit of energy for domestic use so that Indonesia can way out of the crush of the energy crisis. Lands that have been degraded in Indonesia continuously increasing both cause of the extent of natural factors and uncontrolled exploitation. On the other hand the development of this plants retricted by aviability of land. The research88 Volume 14 Nomor 2, Des 2015 : 87 - 101 studies have been conducted on the characteristics of plants, oil and biodiesel production, and adaptability in very broadly of Indonesian agro-ecosystem, this plant show well hopes besides as a source of raw material for biodiesel, it can also function as a conservation plant to reclaim marginal lands that have been degraded. In addition, the development of kemiri sunan on degraded land will not only be able to increase the economic value of the land, but also can be used as crops of high economic value, and able to provide for the energy needs of the surrounding communities and to the wider region.<br />Keywords: Reutealis trisperma (Blanco) Airy Shaw, biodiesel, renewable energy, degraded land, post mained land.</p>

scholarly journals Optimal configuration of hybrid PV-generator (diesel/GPL) for a decentralized production of electricity in Algeria

2020 ◽  
Vol 11 (4) ◽  
pp. 2038
Author(s):  
Amara Mohamed ◽  
Zablah Abdelkader ◽  
Bouanane Abdelkrim
Keyword(s):  
Power System ◽  
Hybrid System ◽  
Rural Areas ◽  
Unit Cost ◽  
Operating Cost ◽  
Peak Load ◽  
Diesel Generator ◽  
Hybrid Power System ◽  
Simulation And Optimization ◽  
Hybrid Power

The absence of electricity in rural areas is one of the major challenges faced by many developing countries like Algeria. This work has been devoted to the design of an off-grid renewable hybrid power system for a rural village in the region of Tindouf located in south Algeria. The main objective of this study is to determine the optimum size of the hybrid power system able to fulfill the requirements of 709 kWh/day primary load with 66 kW peak load for a remote area of 230 households. This study is based on simulation and optimization of a (PV-Diesel) and (PV-GPL) hybrid system with a technical-economic analysis. Simulation results showed that electrifying using a PV/GPL generator hybrid system is more advantageous when compared to the PV/diesel generator hybrid system as it has lower operating costs and emissions. The comparison is based on per unit cost of electrical energy production, operating cost of conventional fossil fuel-based energy sources and pollutants gases reduction.

scholarly journals Fault Diagnosis in Hybrid Renewable Energy Sources with Machine Learning Approach

2021 ◽  
Vol 3 (3) ◽  
pp. 222-237
Author(s):  
Haoxiang Wang
Keyword(s):  
Machine Learning ◽  
Energy Source ◽  
Renewable Energy ◽  
Rural Areas ◽  
Renewable Energy Sources ◽  
Energy Resource ◽  
Reference Value ◽  
Energy Resources ◽  
Energy Sources ◽  
Hybrid Renewable Energy

In recent days the need for energy resources is dramatically increasing world-wide. Overall 80% of the energy resource is supplied in the form of fuel based energy source and nuclear based energy source. Where fuel based energy resources are very essential in day-to-day life. Fossil fuel is also one among the energy resource and due to the high demand we face shortage in these resources. Providing electricity in rural areas is still a difficult process because of the shortage of energy resources. This issue can be rectified by choosing an alternate to electricity. To achieve this we have integrated many renewable energy sources to form a hybrid-renewable energy source system and this is capable of providing power supply to these areas. We have adopted artificial neural networks (ANN) technique based on machine learning to accomplish this process. For short-term prediction other techniques such as MLP, CNN, RNN and LSTM are used. These values are used as reference value in final execution.

Integrating energy sectors in a state-resolved energy system model for Australia

2020 ◽  
Author(s):  
Tina Aboumahboub ◽  
Robert Brecha ◽  
Matthew Gidden ◽  
Andreas Geiges ◽  
Himalaya Bir Shrestha
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
Power System ◽  
Energy Resource ◽  
Energy System ◽  
System Model ◽  
Power Sector ◽  
Time Step ◽  
Renewable Power ◽  
Industrial Sectors

&lt;p&gt;Australia represents an interesting case for energy system transformation modeling.&amp;#160; Wile it currently has a power system dominated by fossil fuels, and specifically with a heavy coal component, there is also vast potential for expansion and use of renewable energy.&amp;#160; Geographically, the country is divided into seven states and territories, two of which have power systems isolated from the rest of the country. Regions have widely differing characteristic energy mixes and resources, ranging from high reliance on brown coal (Victoria), black coal (New South Wales, Queensland), natural gas (Northern Territory, Western Australia) to states that have already moved toward renewable energy-dominant systems (South Australia, Tasmania). Renewable power systems across Australia are experiencing rapid growth, particularly in solar photovoltaics and to a lesser extent with wind power and battery storage.&amp;#160;&lt;/p&gt;&lt;p&gt;In order to better understand the further potential expansion of renewable power systems in Australia, we developed the Australian Energy Modelling System (AUSeMOSYS) based on the open-source OSeMOSYS framework. We apply AUSeMOSYS to investigate cost-optimal transformation pathways towards a carbon-neutral energy system. The model is calibrated carefully to recent past trends in energy generation, including the recent and near-future rapid uptake of renewables in different regions, whether by policy decision or autonomous development.&amp;#160; Beyond the power sector, AUSeMOSYS also provides scenario pathways for the uptake of electric vehicles and hydrogen powered transport, coupled to the power sector with a timeline through 2050. In order to investigate the full extent of renewable energy expansion given Australia&amp;#8217;s recognized large renewable energy resource potential, we link selected industrial sectors to the power system model, e.g. steel production, where use of electric generation can further decarbonize Australia&amp;#8217;s economy via hydrogen production and use.&lt;/p&gt;&lt;p&gt;In addition to the results showing the potential for large, integrated, cross-sectoral penetration of renewable energy into the Australian energy mix, we investigate modeling sensitivities to key parameters that can affect the uptake and use of renewable energy in the power system. For example, we study sensitivities in the choice of time-step resolution, the availability of trade between states in the National Energy Market (NEM) and the choice of carbon price and carbon cap pathways that can lead to near-zero emissions from the energy system by mid-century.&lt;/p&gt;

Strategic Management of Utilization of New and Renewable Energy in The Rural Areas of Tunisia

1993 ◽  
Vol 4 (4) ◽  
pp. 408-415 ◽  
Author(s):  
M.T. Chaibi
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Strategic Management ◽  
Environmental Conditions ◽  
Rural Areas ◽  
Energy Requirements ◽  
Rural People ◽  
Energy And Environment ◽  
Production Processes ◽  
Energy Needs

In Tunisia, the rural people have the smallest amounts of energy available. Their energy is used mainly for basic needs, and it often comes from noncommercial fuels, especially wood. Therefore, the rural areas are facing severe and interrelated problems of energy and environment. The environmental impacts of intensified production processes aggravate the degradation of ecologic systems. The analysis of the energy situation in rural areas of Tunisia has shown that a growing energy consumption can be expected over the entire spectrum of economic and social activities. To cope with this crisis, technologies for energy requirements should not only meet energy needs; they must also be geared to particular economic, social and environmental conditions. Technically efficient, decentralized systems for the utilization of new and renewable energy can help in this by meeting the demand for higher quality energy. This article attempts to propose precepts upon which a strategy can be formulated for a rational use of renewable energy in the rural areas.

Sludge digestion instead of aerobic stabilisation – a cost benefit analysis based on experiences in Germany

2013 ◽  
Vol 69 (2) ◽  
pp. 430-437 ◽  
Author(s):  
Oliver Gretzschel ◽  
Theo G. Schmitt ◽  
Joachim Hansen ◽  
Klaus Siekmann ◽  
Jürgen Jakob
Keyword(s):  
Interest Rates ◽  
Energy Savings ◽  
Cost Benefit Analysis ◽  
Operating Cost ◽  
Energy Resource ◽  
Cost Savings ◽  
Capital Costs ◽  
Positive Effects ◽  
Operation Costs ◽  
Break Even Point

As a consequence of a worldwide increase of energy costs, the efficient use of sewage sludge as a renewable energy resource must be considered, even for smaller wastewater treatment plants (WWTPs) with design capacities between 10,000 and 50,000 population equivalent (PE). To find the lower limit for an economical conversion of an aerobic stabilisation plant into an anaerobic stabilisation plant, we derived cost functions for specific capital costs and operating cost savings. With these tools, it is possible to evaluate if it would be promising to further investigate refitting aerobic plants into plants that produce biogas. By comparing capital costs with operation cost savings, a break-even point for process conversion could be determined. The break-even point varies depending on project specific constraints and assumptions related to future energy and operation costs and variable interest rates. A 5% increase of energy and operation costs leads to a cost efficient conversion for plants above 7,500 PE. A conversion of WWTPs results in different positive effects on energy generation and plant operations: increased efficiency, energy savings, and on-site renewable power generation by digester gas which can be used in the plant. Also, the optimisation of energy efficiency results in a reduction of primary energy consumption.

scholarly journals Renewable Energy – Implications for Agriculture and Rural Development in Poland

2017 ◽  
pp. 121-146
Author(s):  
Katarzyna Bańkowska ◽  
Piotr Gradziuk
Keyword(s):  
Renewable Energy ◽  
Rural Areas ◽  
Energy Production ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Significant Degree ◽  
Primary Energy ◽  
Economic Potential ◽  
Hydroelectric Power ◽  
Alternative Sources

Due to their quantitative and qualitative potential, rural areas participate to a significant degree in the achievement of the indicative targets resulting from the climatic package. Thanks to the production of biomass and, increasingly often, energy itself during the 2005–2014 period, the share of RES (renewable energy sources) in the production of primary energy grew twofold from 5.8% to 12.1%. Biomass was the main source, but since 2010 the use of wind and sun in the production of energy has been growing rapidly. Given that the costs of alternative sources for energy production (mainly electricity) are considerably higher than in case of using raw fuels, the development of this market depends on the amount of subsidies. The system applied in Poland is widely criticized because it favours large hydroelectric power plants and co-combustion, which arouses considerable environmental, technical, market and strategic controversies. Maintaining the current support system could therefore have significant implications for the structure of the market, because it is not conducive to the development of energy, based on the initiative of citizens and their communities. It remains untapped economic potential also in industrial policy and services and, in particular, in case of RES small- and micro-installations.

scholarly journals Economic Evaluation of Hybrid Renewable Energy Systems for Electricity Generation in Nigeria: A Discounted Cash Flow Analysis

2019 ◽  
pp. 1-10 ◽  
Author(s):  
Michael Aba ◽  
Ayodeji Ladeinde ◽  
Emmanuel Afimia
Keyword(s):  
Renewable Energy ◽  
Environmental Impact ◽  
Cash Flow ◽  
Rural Areas ◽  
Energy Resource ◽  
Energy Systems ◽  
Discounted Cash Flow ◽  
Renewable Energy Systems ◽  
Hybrid Renewable Energy Systems ◽  
Hybrid Renewable Energy

Nigeria has great renewable energy resource potential comprising solar, wind, biomass and hydro and much work has been done on estimation of this potential. Variability of a single resource type, high cost of energy from renewable sources and impracticability of grid extension to distant rural areas from the national grid has led to the development of hybrid renewable energy systems (HRES). Although Nigeria is rich in these renewable resources, a hybrid application approach seems more feasible to ensure a reliable and cost-effective power supply from these sources. This study was conducted to assess Nigeria’s technological readiness for adopting HRES, its environmental impact and its viability over a 20-year period. A review of past literature was carried out to ascertain the country’s readiness for HRES and its environmental impact, while the discounted cash flow (DCF) analysis, along with other economic indicators of net present value (NPV), internal rate of return (IRR) and payout period (PO) were adopted to estimate the economic viability of the system. The outcome of this paper shows that HRES for power generation in Nigeria is economically viable.

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