scholarly journals Backup of Renewable Energy for an Electrical Island: Case Study of Israeli Electricity System—Current Status

2014 ◽  
Vol 2014 ◽  
pp. 1-8
Author(s):  
A. Fakhouri ◽  
A. Kuperman

The paper focuses on the quantitative analysis of Israeli Government’s targets of 10% renewable energy penetration by 2020 and determining the desired methodology (models) for assessing the effects on the electricity market, addressing the fact that Israel is an electricity island. The main objective is to determine the influence of achieving the Government’s goals for renewable energy penetration on the need for backup in the Israeli electricity system. This work presents the current situation of the Israeli electricity market and the study to be taken in order to assess the undesirable effects resulting from the intermittency of electricity generated by wind and solar power stations as well as presents some solutions to mitigating these phenomena. Future work will focus on a quantitative analysis of model runs and determine the amounts of backup required relative to the amount of installed capacity from renewable resources.

2005 ◽  
Vol 9 (3) ◽  
pp. 15-23 ◽  
Author(s):  
Fajik Begic ◽  
Anes Kazagic

Along with the current processes of restructuring of Energy power system of Bosnia and Herzegovina, liberalization of the electricity market, and modernization of the existing power plants, Bosnia and Herzegovina must turn to the utilization of renewable resources in reason able dynamics as well. Respecting this policy, the initial Valuation of the potential of renewable erg resources in Bosnia and Herzegovina is per formed. The methodology of evaluation of wind energy utilization is presented in this paper, as well as some other aspects of utilization of the renewable energy resources in Bosnia and Herzegovina. Implementation of selected projects should improve sustainability of energy power production in Bosnia and Herzegovina, by reducing the total emission of carbon dioxide originated from energy power system of Bosnia and Herzegovina.


Author(s):  
Kristīne Šeļepova

Raksta mērķis ir apzināt atjaunojamo energoresursu tiesisko regulējumu, tā atbalsta shēmas un problemātiku. Raksta autore skaidro, vai šo tiesību aizsardzības līmenis ir pietiekams, vai ir pieņemtas nepieciešamās materiālo tiesību normas, kā arī vai ir pietiekoši tiesiskie līdzekļi, kas nodrošina šo tiesību aizsardzības ievērošanu, kā arī nākamos soļus energoresursu liberalizācijas posmos. Use of renewable energy increases independence from imported energy, reduces greenhouse gas emissions, as well as increases security of energy supply. However, energy industry concedes that power becomes more vulnerable because of historical paradigms; independent power base is replaced with production from renewable energy sources. This is due to subsidies in the investment priority being cost-effective renewable resources projects. Thus, it is necessary to develop a solution defining how volatile and unpredictable renewable energy sources integrated into the European electricity market can be, while ensuring safe and uninterrupted power supply.


Author(s):  
P. Balakrishnan ◽  
M. S. Shabbir ◽  
A. F. Siddiqi ◽  
X. Wang

1993 ◽  
Vol 69 (3) ◽  
pp. 300-306 ◽  
Author(s):  
Jon Gingerich ◽  
Ole Hendrickson

Industrial societies consume vast quantities of fossil fuel resources; the carbon dioxide released when these fuels are combusted is a major concern because of global warming. "Energy Return On Investment" (EROI) is the ratio of energy gain from a resource relative to the energy invested to achieve that gain. EROI analysis shows that the net energy available from fossil fuels decreases as resources are depleted, encouraging a transition to renewable resources which will not be depleted under sustainable management. Renewable resources can reduce net contributions of carbon dioxide to the atmosphere; however, many sources of renewable energy require fossil fuel inputs into their production process. EROI analysis can also be used to determine renewable energy sources with the greatest energy gain, relative to the fossil fuel investment required to achieve that gain.One renewable source of energy with considerable potential for expansion in Canada is wood biomass. A case study of whole tree chipping (WTC) in Prince Edward Island revealed an EROI ratio of wood chip energy gained relative to fuel energy invested of 26.7:1. The major factor affecting the EROI for WTC was transport of the chips to the burning facilities: distance and load size were important components that should be considered when designing new burning facilities. There are some benefits and disadvantages of WTC not captured by EROI analysis that also need to be considered.


2020 ◽  
Vol 60 (1) ◽  
pp. 53
Author(s):  
Joshua Stabler

Australian energy markets have been heavily influenced by the rapid rise of renewable energy projects (wind and solar) during the past three years on both the east and west coasts. While the east and west coast wholesale gas prices have followed very different trajectories, the fundamental implications of new competitive zero cost supply to the electricity industry is similar. While primarily focused on the sharper implications on the east coast energy markets, this paper will also investigate the twin case study of Western Australia and investigate the economic case of gas in the very different electricity market of the 2020s.


Climate ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 46
Author(s):  
Kirsten Halsnæs ◽  
Lisa Bay ◽  
Per Skougaard Kaspersen ◽  
Martin Drews ◽  
Morten Andreas Dahl Larsen

To limit global warming to less than 2 °C requires a low-carbon transition with very large shares of renewables. Options such as wind, solar and hydro are influenced by both short and longer-term weather and climate variability. While still subject to natural and anthropogenic climate forcing and fluctuating energy prices, water reservoirs can dually operate as storage and production facilities and serve to balance the more volatile production capacity from solar and wind. This paper assesses the dynamics and demands of the hydro-dominated Nordic electricity system and market and identifies untapped potential for climate services based on a combination of literature-based research, documented stakeholder needs and data sources on historical and future conditions. A critical need for both improving the appropriateness and reliability of existing climate services and for developing new tailored solutions for a broader group of stakeholders from the renewable energy sector in the Nordics is observed. The quantification of uncertainties related to short-term weather forecasts and longer-term climate predictions is also found to be important for minimizing the financial risk in relation to systems management and to overall investments in renewable energy.


Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1014
Author(s):  
Gokturk Poyrazoglu

In the electricity market, different pricing models can be applied to increase market competitiveness. Different electricity systems use different market structures. Uniform marginal pricing, zonal marginal pricing, and nodal marginal pricing methods are commonly used market structures. For markets wishing to move from a uniform pricing structure to a more competitive zonal pricing structure, the determination of price zones is critical for achieving a competitive market that generates accurate price signals. Three different pricing zone detection algorithms are analyzed in this paper including the k-means clustering and queen/rook spatially constraint clustering. Finally, the results of a case study for the Turkish electricity system are shared to compare each method.


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