scholarly journals Renewable Energy Supply and Demand for the City of El Gouna, Egypt

2016 ◽  
Vol 8 (4) ◽  
pp. 314 ◽  
Author(s):  
Johannes Wellmann ◽  
Tatiana Morosuk
Keyword(s):  
Renewable Energy ◽  
Energy Supply ◽  
Supply And Demand ◽  
The City

scholarly journals Matching renewable energy supply and demand in green datacenters

2015 ◽  
Vol 25 ◽  
pp. 520-534 ◽  
Author(s):  
Íñigo Goiri ◽  
Md E. Haque ◽  
Kien Le ◽  
Ryan Beauchea ◽  
Thu D. Nguyen ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Supply ◽  
Supply And Demand

scholarly journals High Proportion Renewable Energy Supply and Demand Structure Model in 2050

2017 ◽  
Vol 5 (2) ◽  
pp. 163-169 ◽  
Author(s):  
Xiaoxia Wei ◽  
◽  
Jie Liu ◽  
Tiezhong Wei ◽  
Lirong Wang
Keyword(s):  
Renewable Energy ◽  
Energy Supply ◽  
Supply And Demand ◽  
Structure Model ◽  
Demand Structure

scholarly journals Renewable Energy and Other Strategies for Mitigating the Energy Crisis in Nepal

2021 ◽  
Author(s):  
◽  
Ramhari Poudyal
Keyword(s):  
Renewable Energy ◽  
Energy Supply ◽  
Supply And Demand ◽  
Cement Industry ◽  
Production Costs ◽  
Solar Irradiation ◽  
Energy Crisis ◽  
Cement Production ◽  
The Government

The overarching aim of this research is to carefully review Nepal’s energy scenario from the technical and socio-economic perspective in order to determine the optimal near-term as well as long-term strategies to overcome the energy crisis. Renewable energy sources are pivotal to this research due to the abundant availability of these resources in Nepal. The long-term energy supply and demand forecast for Nepal overthe next 30 years was obtained in Long-Range Energy Planning (LEAP) software.Other quantitative results were obtained using software packages, including PVsyst,Meteo, and HOMER. In many other cases, energy data collected from open literature,government and regulator reports were analysed. There are also several case studies considered in the thesis.The PV rooftop energy systems for Nepalese town and rural households can minimise the energy trade deficit with neighbouring India, enhance energy security,and improve local employment opportunities as well as improve utilisation of the local resources. In particular, a 3kW PV rooftop system was designed and simulated inMATLAB/Simulink, and the corresponding PV and IV curves were obtained,including analysing the effects of environmental temperature and solar irradiation. The design was followed by techno-economic feasibility, assuming typical households in the Kathmandu valley. The study outcome is that the PV system for a residential building in Kathmandu is economically feasible, and it can provide nearly 6,000kWh/year of energy.The potential energy efficiency improvements in the cement industry were studied using data collected directly at one of the major cement plants in Nepal. The cement production processes are very energy-intensive, and they have not changed for years.Since the energy costs in Nepal are abnormally high, they represent over half of the cement production costs. It creates substantial pressure to conserve energy and materials while reducing the carbon footprint. Other important factors that must be considered apart from energy issues are production efficiency and sustainability, and how to exploit innovations and encourage investments.The chaotic energy situation in Nepal is exacerbated by rather significant electricity distribution losses and frequent cases of electricity theft. These two issues are significant contributors to a widening gap between energy supply and demand. iv Other such issues include overpriced and delayed hydropower projects, insufficient and outdated infrastructure, lack of energy conservation, deficient energy management, inadequately low efficiency of equipment, unsustainable energy pricing strategies, indecisive energy market regulations, reliance on energy imports, and especially inadequate exploitation of vast amounts of renewable energy resources. All these factors are also adversely affecting the geopolitical, environmental, and socioeconomic situation in Nepal. The developments in the energy sector in Nepal are also discussed in light of the relevant energy policies which have been adopted by the government over the past two decades.The results presented in the thesis can be used by the government regulators and energy policy planners, and possibly also by the public and private energy companies.It should be noted that the findings and observations in the thesis are also applicable to other countries with a similar development status and geography as Nepal.

scholarly journals Assessment of the Use of Renewable Energy Sources for the Charging Infrastructure of Electric Vehicles

2020 ◽  
Vol 4 (6) ◽  
pp. 539-550
Author(s):  
A. D. Gorbunova ◽  
I. A. Anisimov
Keyword(s):  
Renewable Energy ◽  
Electric Vehicles ◽  
Energy Supply ◽  
Power Grid ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Charging Infrastructure ◽  
Smart Charging ◽  
Charging Stations ◽  
The City

Application of renewable energy sources is a relevant area of energy supply for urban infrastructure. In 2019, the share of energy produced by such sources reached 11% (for solar energy) and 22% (for wind energy) of the total energy produced during the year. However, these systems require an improvement in their efficiency that can be achieved by introducing electric vehicles. They can accumulate, store and transfer surplus energy to the city’s power grid. A solution to this problem is a smart charging infrastructure. The existing studies in the field of charging infrastructure organization for electric vehicles consider only models locating charging stations in the city or the calculation of their required number. These calculations are based on socio-economic factors and images of a potential owner of an electric vehicle. Therefore, the aim of this study is to develop a methodology for determining the location of charging stations and their required number. The calculation will include the operating features of the existing charging infrastructure, which has not been done before. Thus, the purpose of this article is to research the operation of the existing charging infrastructure. This will provide an opportunity to develop approaches to the energy supply of charging infrastructure and city’s power grid from renewable energy sources. The article presents an analysis of data on the number of charging sessions during the year, month and day. This data enable us to construct curves of the charging session number and suggest ways to conduct the next stages of this study. Doi: 10.28991/esj-2020-01251 Full Text: PDF

The Development and Promotion of Distributed Power in Our Country

2012 ◽  
Vol 433-440 ◽  
pp. 6669-6673
Author(s):  
Huan Huan Qiao ◽  
Xin Lu ◽  
Hong Juan Li
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Energy Supply ◽  
Supply And Demand ◽  
Energy Structure ◽  
Transmission Losses ◽  
Distributed Power ◽  
Look Ahead ◽  
New Energy ◽  
New Form

Distributed power with the characteristics of clean, convenient, reliable, less transmission losses and suitable for renewable energy, is appropriate for China's sustainable development. In this paper, we discuss the necessity of developing distributed power in our country and the impacts when combined to the grid. Then we put forward the paths and methods to promote distributed power according to the situation in our country. Finally, we look ahead the development of distributed power With China's rapid economic development, the contradiction between energy supply and demand is becoming increasingly prominent. In addition, the huaman survival environment is deteriorating. There comes a new form of power generation- distributed power, which is mainly based on new energy and renewable energy. It is of great significance to improve China's energy structure, and to realize sustainable development in our country.

Self-sufficient renewable energy supply in urban areas: Application to the city of Seville

2019 ◽  
Vol 46 ◽  
pp. 101450 ◽  
Author(s):  
Angel Arcos-Vargas ◽  
Antonio Gomez-Exposito ◽  
Francisco Gutierrez-Garcia
Keyword(s):  
Renewable Energy ◽  
Urban Areas ◽  
Energy Supply ◽  
The City

scholarly journals 100% Renewable Energy Scenarios for North America—Spatial Distribution and Network Constraints

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 658
Author(s):  
Elmar Zozmann ◽  
Leonard Göke ◽  
Mario Kendziorski ◽  
Citlali Rodriguez del Angel ◽  
Christian von Hirschhausen ◽  
...  
Keyword(s):  
Renewable Energy ◽  
North America ◽  
Energy Supply ◽  
Energy Demand ◽  
Power Plants ◽  
Supply And Demand ◽  
State Level ◽  
Renewable Resource ◽  
Energy System ◽  
Energy System Model

The urgency to combat climate change and the widely distributed, increasingly competitive renewable resources in North America are strong arguments to explore scenarios for a renewable energy supply in the region. While the current power system of North America is heavily dependent on fossil fuels, namely natural gas, coal and oil, and some nuclear power plants, some current policies at the state level, and future federal policies are likely to push the share of different renewable sources available in Mexico, the U.S., and Canada. This paper explores three scenarios for a renewable energy supply, using a bottom-up energy system model with a high level of spatial and time granularity. The scenarios span the extremes with respect to connecting infrastructure: while one scenario only looks at state-level supply and demand, without interconnections, the other extreme scenario allows cross-continental network investments. The model results indicate that the North American continent (a) has sufficient renewable potential to satisfy its energy demand with renewables, independent of the underlying grid assumption, (b) solar generation dominates the generation mix as the least-cost option under given renewable resource availability and (c) simultaneous planning of generation and transmission capacity expansion does not result in high grid investments, but the necessary flexibility to integrate intermittent renewable generation is rather provided by the existing grid in combination with short-term and seasonal storages.

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