05/01134 Design for renewable energy systems with application to rural areas in Japan

2005 ◽  
Vol 46 (3) ◽  
pp. 171
2020 ◽  
Vol 34 (27) ◽  
pp. 2050290
Author(s):  
Karan Sood ◽  
Eswaramoorthy Muthusamy

Hybrid Renewable Energy Systems (HRESs) are noteworthy devices for enhancement of reliability and performance compared to standalone systems, which are in a combination of more than one energy conversion system in a single unit. The recent developments in materials and technologies of HRESs are cost-effective and are more suitable power options for isolated rural areas. Many researchers have reported to have enhanced the performance of HRESs across India. Hence, this paper presents a comprehensive review of various HRESs that have been reported for their performance evaluation with respect to economic distance limit, techno-economic sensitivity, and optimum analysis. Also, different hybrid combinations are compared based on the factor of Net Present Cost (NPC), Cost of Energy (COE), renewable fraction, maximum renewable penetration, operational cost, and/or emission. Some case studies on various combinations of HRES for telecommunication application, rural electrification and water distillation are discussed and compared. It is concluded from the comprehensive review that there is scope for further studies on hybrid system across the country with adoption of different and newer combinations, materials and thermodynamic approaches. This paper will be helpful to researchers and scientists in understanding the state-of-the-art technologies in the hybrid system.


Energy Policy ◽  
2005 ◽  
Vol 33 (2) ◽  
pp. 209-219 ◽  
Author(s):  
Toshihiko Nakata ◽  
Kazuo Kubo ◽  
Alan Lamont

Author(s):  
Michael Aba ◽  
Ayodeji Ladeinde ◽  
Emmanuel Afimia

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.


2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Muhammad Zeeshan Malik ◽  
Vineet Tirth ◽  
Amjad Ali ◽  
Ajmal Farooq ◽  
Ali Algahtani ◽  
...  

In an attempt to meet the global demand, renewable energy systems (RES) have gained an interest in it due to the availability of the resources, especially solar photovoltaic system that has been an importance since many years because of per watt cost reduction, improvement in efficiency, and abundant availability. Photovoltaic system in remote and rural areas is very useful where a grid supply is unavailable. In this scenario, power electronic converters are an integral part of the renewable energy systems particularly for electronic devices which are operated from renewable energy sources and energy storage system (fuel cell and batteries). In this article, a new topology of charge pump capacitor (CPC) which is based on high voltage gain technique DC-DC boost converter (DCBC) with dynamic modeling is proposed. To testify the efficacy of the introduced topology, a prototype has been developed in a laboratory, where input was given 10VDC and 80VDC output voltage achieved at the load side. Furthermore, the experimental result shows that the voltage stress of MOSFET switches is very less in comparison with the conventional boost converter with the same parameters as the proposed converter.


2017 ◽  
Vol 1 (15) ◽  
pp. 774-777
Author(s):  
José L. Bernal-Agustín ◽  
Rodolfo Dufo-López ◽  
Javier Carroquino-Oñate ◽  
Jesús S. Artal-Sevil ◽  
José A. Domínguez-Navarro ◽  
...  

Author(s):  
Mazharul Islam ◽  
M. Ruhul Amin ◽  
A. K. M. Sadrul Islam

People in the developing countries who lack basic services and economic opportunities are primarily concerned with improving their living conditions. At present, unemployment problem in the rural areas of the developing countries are diversifying the moral values and social responsibilities of unemployed youth. To solve the problem, rural development centres (involving vocational training, IT services and other productive activities) can contribute significantly for the upliftment of these rural youths and can transform them into grass-root entrepreneurs. One critical factor hindering the establishment of such rural development centers is access to affordable and reliable energy services. Under this backdrop, environmentally benign renewable energy systems can contribute significantly in providing much needed energy in the unserved or underserved rural development centers in the developing countries to achieve both local and global environmental benefits. The paper demonstrates that energy deficient, economically backward communities in the off-grid areas of the developing countries, can be given an array of opportunities for income generation and social progress through rural development centers with the aid of renewable energy sources (such as wind, solar photovoltaics, solar thermal, biomass and micro-hydro), thereby improving their standard of living. Poverty alleviation in rural areas can be accomplished and the critical role of access to adequate level of energy services, Information Technology (IT) and modern communication facilities in it demonstrated. Furthermore, the production, implementation, operation and maintenance of renewable energy applications being labor-intensive, will also result in job growth in the village context, preventing migration of labor force, especially of young men, from rural areas to overcrowded industrial areas. An appropriately designed renewable energy systems can also have a significant role in reducing the impact of climate change through non production of green house gases.


2021 ◽  
Vol 9 ◽  
Author(s):  
M. Thirunavukkarasu ◽  
Yashwant Sawle

Electrification in rural areas is relatively costly compared to urban areas. Therefore, the aim of this research is to identify the best combination of hybrid renewable energy systems (HRESs) to satisfy the load demand in a sustainable and cost-efficient way. The techno-economic study of stand-alone hybrid photovoltaic–wind turbine–diesel–battery-converter energy systems based on the hybrid optimization model for electric renewable (HOMER) simulation has been analyzed for various locations in the Tamil Nadu state, India. Various combinations of the systems have been compared and analyzed based on the performance of their technical parameters, costs, the electrical power production of each source, and unmet load. The findings indicated that the off-grid solar–wind–diesel–battery configuration is the most economical for all the sites among other system configurations. Comparing with conventional diesel generators among all the locations, a combination of solar/wind/diesel/battery is the economically best design for Thoothukudi, with the least and most reliable solution in terms of net present cost and cost of energy. Also, the impact of intermittent variables becomes significant, so sensitivity analysis for the various parameters has been carried out. The study finds that the least cost of electricity and the net present cost of electricity for Thoothukudi are achieved at 0.266 $/kWh and 138,197 $, respectively. This is economical compared to a stand-alone diesel system where the obtained COE is $1.88 and the NPC is $977523. In the stand-alone diesel operating mode, 41854 kg of CO2 is produced, which is higher than CO2 emissions associated with any other renewable energy systems. According to the results, the Kanyakumari location outperforms in terms of producing environmental pollutants with emission of 1,020 kg/y CO2 at their best. Moreover, the results of the proposed study imply that the proposed renewable energy system in remote sites could be a more economical measure.


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