Integration of renewable energy sources into the electricity system with new storage and flexibility options

2012 ◽  
pp. 153-158
Author(s):  
Matthias Koch ◽  
Dierk Bauknecht
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Electricity System ◽  
Flexibility Options

scholarly journals Predictable and Unpredictable Climate Variability Impacts on Optimal Renewable Energy Mixes: The Example of Spain

Energies ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 5132
Author(s):  
Aina Maimó-Far ◽  
Alexis Tantet ◽  
Víctor Homar ◽  
Philippe Drobinski
Keyword(s):  
Renewable Energy ◽  
Climate Variability ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Electricity System ◽  
Variable Nature ◽  
Markowitz Portfolio ◽  
The Impact ◽  
Mean Variance

We analyzed the role of predictable and unpredictable variability in the identification of optimal renewable energy mixes in an electricity system. Renewable energy sources are the fastest growing energy generation technology, but the variable nature of production linked to climate variability raises structural, technological and economical issues. This work proposes the differentiation of the treatment applied to predictable and unpredictable variability in the context of Markowitz portfolio theory for optimal renewable deployment. The e4clim model was used as a tool to analyze the impact of predictable sources of generation variability on the optimal renewable energy mixes. Significant differences appeared, depending on the consideration of risk, all of them showing room for improvement with respect to the current situation. The application of the methods developed in this study is encouraged in mean-variance analyses, since its contribution favors scenarios where unpredictable variability in the climate-powered renewable energy sources are considered for their risk introduction.

The Competition of Different Measures to Increase Flexibility in Energy Systems with a High Share of Fluctuating Renewable Energy Sources

Green ◽  
2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Christoph Brunner ◽  
Felix Teufel
Keyword(s):  
Renewable Energy ◽  
Electricity Generation ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sources ◽  
Present Generation ◽  
Generation Structure ◽  
Flexibility Options ◽  
High Share ◽  
Future Energy System

AbstractThe continuous expansion of electricity generation from intermittent renewable energy sources (RES) is changing the present generation structure that has been designed to follow fluctuating demand considerably. In order to utilise a high share of supply-dependent RES, the future energy system needs to become more flexible than it is today. This paper describes the different flexibility options that can be implemented with regard to their major restrictions as well as their suitability to balance a certain deficit or surplus of RES generation. Furthermore, it outlines the importance of competition between these different balancing measures to meet the required level of flexibility at lowest cost.

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