renewable Energy sources Research Papers (original) (raw)

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- Environmental Engineering, Civil Engineering, Water resources, Heat Transfer

A significant proportion of the population in sub-Saharan Africa live in the rural areas, with the majority living on less than US$1 per day. Access to electricity is considered an essential element in the sustainable development of rural areas and an enabler for countries to achieve their Millennium Development Goals. This paper contributes the first analytical study of the socio-economic factors which have a significant impact on rural electrification (RE) development in sub-Saharan Africa. The study employs cross-sectional data for 24 of the 47 countries in the sub-Saharan region and finds factors including the Human Development Index, wealth distribution, institutional development and urban population size of a country to have a significant impact on RE development. A detailed policy survey of four countries from the sample; two countries categorised as over-performing (Nigeria and Madagascar) and two as under-performing (Tanzania and Chad), highlights that collaboration with in...

- by Oona Nanka-Bruce
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- Geography, Developing Countries, renewable Energy sources, Developing Country
- by Mehrube Mehrubeoglu
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- Energy Conversion, renewable Energy sources, Assembly, Ocean Waves
- by MUAZ AYHAN IŞIK
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- Climate Change, Gender, Waste Management, Sustainable Water Resources Management
- by Andreas Poullikkas
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- Engineering, Climate Change, Sustainable Energy, Global Warming
- by Marcelo Molina
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- Power System, Flow Control, Distributed System, Control system
- by Taraneh Sowlati
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- Engineering, Economics, Renewable Energy, Energy Conservation
- by Roberto souza
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- Engineering, Ionic Liquid, Proton Exchange Membrane Fuel Cells, Power

During the period up to 2040, renewable energy sources (RES) will have the highest growth rates of all forms of energy. Based on the calculations on the world energy model incorporated in the SCANER modelling and information complex (working on the basis of optimization, econometric analysis, and balance approach), key trends in the world consumption of renewable energy sources; the share of OECD and non-OECD countries in the use of the renewable energy sources; consumption of renewable energy sources by type; end use and the impact on the electricity sector during the period up to 2040 were observed. The main finding of the paper is that RES are becoming more competitive and therefore will be used on an increasingly wide scale not only in the OECD countries, but also in the whole world. At the same time, due to the fact that RES start their takeoff from a modest basis, they will only have a limited influence on the shares of hydrocarbons in the energy mix.

Photovoltaics has a great potential as a powerful renewable energy source and technology, which can be deployed into a wide range of competitive applications and growing markets and, finally, contribute to a sustainable, secure and efficient energy supply. The photovoltaic activities are slowly emerging and markets are already being created in the CEEC. There is a need for overcoming the existing barriers for the PV development in CEEC. It is also of strategic importance to have information updated and exchanged and to use the latest results available. This helps to avoid duplications or mistakes earlier made by others, etc., and, if possible, to orientate the ongoing research activities towards the problems and key issues relevant in the context of the enlarged EU. To sum up, PV may develop in CEEC. There are still many opportunities to be effectively exploited and some barriers to be overcome.

- by Job J. Swens and +1
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- Business, Eastern Europe, renewable Energy sources

Climate change and resource depletion are driving the transition to renewable energy sources. Both the supply of renewables and the demand for energy are influenced by the physical environment and therefore concern spatial planning and landscape design. Envisioning the long-term development of alternative energy landscapes – that is sustainable energy landscapes – present spatial planners and landscape architects with new challenges. The first paper of this two-part series discussed several existing approaches to long-term regional planning and landscape design, and presented an alternative, five-step approach for the composition of integrated visions [Stremke, S., Kann, F. Van & Koh, J. (2012) Integrated Visions (part I): Methodological Framework, European Planning Studies, [20(2), pp. 305–320]. This paper illustrates how the five-step approach was employed to compose a set of integrated visions for the development of sustainable energy landscapes in south of the Netherlands. The p...

- by Arjan Boekel
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- Human Geography, Climate Change, Urban And Regional Planning, Alternative Energy
- by Dias Haralambopoulos
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- Engineering, Cartography, Earth Sciences, Environmental Science
- by Mark Weimar
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- Management, Environmental Economics, Renewable Energy, Electricity
- by Jeffrey Witwer
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- Multidisciplinary, renewable Energy sources, Solar Energy, Electric Power
- by SUDHEEP S
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- Renewable Energy, Energy Policy, Fuel Cell, renewable Energy sources

Distributed power generation is the future trend due to its ability to accommodate variety of renewable/alternative energy sources, its potential to improve the energy efficiency and power system capability, and its promise for power reliability and security. Many distributed energy sources exists such solar energy, fuel cell, micro turbine, and wind energy. Distributed power generation concept has been implemented in

- by C. Cecati
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- Engineering, Wind Energy, Power System, Alternative Energy
- by Peter Eisenberger
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- Green Economics, International Relations, Climate Change, Energy Policy
- by Martina Francisca Baidoo
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- Mechanical Engineering, Design, Climate Change, Renewable Energy
- by Carlo Santulli
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- Renewable Energy, Industrial Design, renewable Energy sources, Energy Balance
- by John W Twidell
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- renewable Energy sources, European Commission
- by Gholamhassan Najafi
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- Engineering, Renewable Energy, Wind Energy, Renewable Energies

- by C. Cecati
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- Engineering, Wind Energy, Power System, Alternative Energy
- by Monica Havskjold
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- Renewable Energy, Biomass, Bioenergy, Energy Policy
- by Stefano Squartini
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- Expert Systems, Linear Programming, Particle Swarm Optimization, Optimization
- by Kashem Muttaqi
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- Iterative Methods, Energy, Power, renewable Energy sources
- by Chi-jen Yang
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- Engineering, Water quality, Hydropower, Global Warming
- by Zvonimir Glasnovic
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- Engineering, Renewable Energy, Sustainable Development, Energy Policy

This paper presents the evaluation of the performance, in terms of uncertainty, of a tool designed to estimate the main parameters of a model of a photovoltaic panel (PVP) under real and/or simulated working conditions. The presented tool permits the characterization of the panel, and it is useful to predict its behavior in whatever working condition; in this way, it is possible to compare the actual and expected performance to prevent any decrease in the output power, so permitting the replacement of the monitored module before it goes out of order or its efficiency falls under a given threshold. The well-known two-diode model is used to estimate the parameters of the electrical equivalent circuit of the PVP and to simulate the I -V and P-V characteristic curves in any given environmental condition of irradiance and/or temperature. The model and the estimation algorithm are implemented with MATLAB functions, whereas data acquisition and result presentation are managed by a LabVIEW graphics user interface. The presented tool has been validated against an experimentally characterized PVP. The environmental parameters of the model such as irradiance and temperature have been set (with their respective uncertainties) during simulations or directly measured during the outdoor tests, whereas the others parameters have been evaluated using a best-fit algorithm on the measured data. The estimation is based on the minimization of a new objective function and on a modified expression of the model resistances, which differ from those mentioned in the available literature. After a review of the state of the art, this paper provides the description of the estimation technique and its validation by means of simulations and experiments. Some results are also provided to illustrate the performance of the proposed test method.

- by Francesco Adamo
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- Computational Modeling, Simulation, renewable Energy sources, Uncertainty
- by C. Karakosta
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- Mechanical Engineering, Renewable Energy, Methodology, Sustainable Development
- by andy widiyanto
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- Environmental Design, Power Plant, renewable Energy sources, Natural Gas
- by driss zejli
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- Engineering, Economics, Renewable Energy, Mathematical Programming
- by Juan Eduardo Lopez Gomez
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- Engineering, Design, Renewable Energy, Control
- by Kasthurirangan (Rangan) Gopalakrishnan and +1
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- renewable Energy sources, Issues

In response to the growing concern over the use of fossil fuels, renewable energy industries have been significant economic drivers in many parts of the United States. In the recent years there is a strong growth in solar power generation industries that requires prediction of solar energy to develop highly efficient stand-alone photovoltaic systems as well as hybrid power systems. In order to accomplish the goal, we propose a predictive model that is based on recurrent neural networks trained with the Levenberg-Marquardt backpropagation learning algorithm to forecast the solar radiation using the past solar radiation and solar energy. This computational intelligence modeling tool explored the impact of solar radiation and solar energy in forecasting reliable long-run solar energy. Based on the excellent experimental results including the mean squared error analysis, error autocorrelation function analysis, regression analysis, and time series response, it demonstrated that the prop...

- by Pradeep Behera
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- Engineering, Computer Science, Renewable Energy, Computational Intelligence

The perspective of hydrogen utilization as a clean fuel, mainly produced from renewable energy sources, compels the refinement of the water electrolysis process, thus reducing hydrogen generation costs. This paper presents the research... more

- by Ennio Peres da Silva
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- Engineering, Renewable Energy, Hydrogen, renewable Energy sources
- by Vinicius Mello
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- Chemical Engineering, Biodiesel, Heterogeneous Catalysis, renewable Energy sources
- by Mehmet Ali Alkan
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- Mechanical Engineering, Renewable Energy, Wind Energy, renewable Energy sources
- by Mikhail Granovskiy
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- Engineering, Economics, Renewable Energy, Energy
- by Brecht Zwaenepoel
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- Government, renewable Energy sources, Virtual Power Plant, Couplings
- by Carlos Augusto Santos Silva
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- Mechanical Engineering, Renewable Energy, Energy, Energy Security

The photovoltaic systems are often employed into micro-grids; Micro-grids are small power grids designed to provide a reliable and better power supply to a small number of consumers using renewable energy sources. This paper deals with DC micro-grids and present a new system of monitoring and sharing electricity between homes equipped with photovoltaic panels (PV) in the goal to reduce the electrical energy waste. The system is based on dynamic sharing of photovoltaic blocks through homes in stand-alone areas, using an arduino board for controlling the switching matrix. The LABVIEW program is used to further process and display collected data from the system in the PC screen. A small-scale prototype has been developed in a laboratory to proof the concept. This prototype demonstrates the feasibility and functionality of the system.

- by Mohammed Al Areqi
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- LabVIEW, renewable Energy sources, Monitoring, Photovoltaic systems
- by ashish K pathak
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- Engineering, Renewable Energy, Sustainable Development, renewable Energy sources
- by Florin Iov
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- Power Electronics, Wind Energy, Energy Consumption, Power Plant

- by Mohammed ALareqi
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- LabVIEW, renewable Energy sources, Monitoring, Photovoltaic systems
- by Ralph Sims
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- Engineering, Climate Change, Renewable Energy, Wind Energy
- by Joao Ferreira
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- Data Mining, Electricity Market, renewable Energy sources, Mobile Application