scholarly journals Increasing Turkey's power system flexibility for grid integration of 50% renewable energy share

2021 ◽  
Vol 34 ◽  
pp. 100625
Author(s):  
D. Saygin ◽  
O.B. Tör ◽  
M.E. Cebeci ◽  
S. Teimourzadeh ◽  
P. Godron
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Grid Integration ◽  
Energy Share ◽  
Power System Flexibility

Coupling of Power and Heating Sector – Opportunity for Heating Sector Development

2021 ◽  
Author(s):  
◽  
Armands Grāvelsiņš
Keyword(s):  
European Union ◽  
Renewable Energy ◽  
System Dynamics ◽  
System Development ◽  
Heating System ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
Power Sector ◽  
National Scale ◽  
Energy Share

European Union has set ambitious decarbonization goals under Green Deal, therefore, Latvia needs to search for solutions on how to move towards reaching the said goals. Although renewable energy share in Latvia is one of the highest among the European Union countries, it is mostly due to historic heritage, not as the result of implementing meaningful policies. Essential high renewable energy share in power sector comes from three large hydroelectric stations on Daugava, which is heritage from the Soviet Union times. Steady increase in renewable energy share can be observed in District Heating, however it is based on increased utilization of biomass, and that most likely is not a sustainable solution. Considering that bioeconomy will experience significant growth in the future, utilization of wood resource for production of products with low added value will steadily phase out. For energy sector it means the necessity to look for other alternatives to replace fossil fuels. If in other European countries (Denmark, Germany, the Netherlands, Lithuania, Estonia, et al.) solar and wind technology capacity have significantly increased over last decade, in Latvia this increase is negligible. Only in the last few years significant increase in installed solar capacities can be observed, but total capacity is still low. Latvia needs to seek solutions on how to increase the introduction rate of renewable energy technologies in order to move towards carbon neutrality in 2050. The aim of the Thesis is to develop a comprehensive system dynamics model which can be used to analyze energy sector at both national and local scale. It should include both heating and power sectors and be able to evaluate the possibility of sector coupling and its influence on the total system. Specific objectives are set to reach the aim: to develop a system dynamics model structure for heating system development; to analyze the heating system at local and national scale; to assess the importance of power sector flexibility on system development; to implement the elements of sector coupling in energy system; to analyze sector coupling as a flexibility increase measure for national scale and local systems.

Inter-sectoral effects of high renewable energy share in global energy system

2019 ◽  
Vol 136 ◽  
pp. 1119-1129 ◽  
Author(s):  
Esa Pursiheimo ◽  
Hannele Holttinen ◽  
Tiina Koljonen
Keyword(s):  
Renewable Energy ◽  
Energy System ◽  
Global Energy ◽  
Energy Share ◽  
Global Energy System

scholarly journals The choice of appropriate generator systems to enhance the renewable energy share in buildings. A comparison between PV-assisted heat pumps and biomass boilers

2021 ◽  
Vol 312 ◽  
pp. 02014
Author(s):  
Roberto Bruno ◽  
Piero Bevilacqua ◽  
Stefania Perrella ◽  
Daniela Cirone ◽  
Natale Arcuri
Keyword(s):  
Renewable Energy ◽  
Building Energy ◽  
Primary Energy ◽  
Heat Pumps ◽  
Dynamic Simulations ◽  
Climatic Zones ◽  
Energy Demands ◽  
Certification Procedure ◽  
Low Energy Buildings ◽  
Energy Share

Low-energy buildings are generally equipped with generation systems driven by renewable sources. Regarding heating and DHW production, two choices appear appropriate: PV assisted heat pumps and biomass boilers. In this paper, by means of TRNSYS dynamic simulations, the non-renewable primary energy was determined for two buildings located in different climatic contexts by varying the PV size to consider the actual self-consumed electricity of commercial devices. Results showed that in cold climates biomass boilers are more suggested, especially in unfavourable climatic zones, whereas the COP of air-water heat pumps is strongly penalized by the outdoor temperatures and in many cases the self-consumed PV electricity does not limit the grid intervention adequately. However, in building with limited thermal energy demands and in favorable climates, suitable PV sizes make heat pumps more performant than biomass boilers. The same calculations were conducted with the quasi-steady approach, in accordance with the Italian building energy certification procedure, observing a favorable scenario in a heating plant equipped with a PV assisted heat pump because it assumes the renewable electricity entirely absorbed, while the accounting of the actual self-consumed share produces a greater demand of non-renewable energy.

ENERGY INSECURITY, ECONOMIC GROWTH, AND THE ROLE OF RENEWABLE ENERGY: A CROSS-COUNTRY PANEL ANALYSIS

2019 ◽  
pp. 1-21 ◽  
Author(s):  
XIANG XU ◽  
JIAN YU ◽  
DAYONG ZHANG ◽  
QIANG JI
Keyword(s):  
Economic Growth ◽  
Renewable Energy ◽  
Developing Economies ◽  
Negative Effects ◽  
Price Effects ◽  
Cross Country ◽  
Negative Impacts ◽  
Energy Share ◽  
Sustainability Problems

Many countries rely on the international energy market as their main energy supplier, thus leading to issues of insecurity. Energy insecurity can potentially hinder economic growth and cause sustainability problems. This paper builds on cross-country panel data and estimates the relationship between energy insecurity and economic growth. We explore the multi-dimensional feature of energy insecurity through energy dependency, renewable energy share, and price effects. Our results show statistically significant negative impacts on growth due to energy insecurity, but the effects are mostly relevant to developing economies. Moreover, we show that the development renewable energy sector can mitigate the negative effects.

Pilot project using curtailment to increase the renewable energy share on the distribution network

2017 ◽  
Vol 2017 (1) ◽  
pp. 1370-1373 ◽  
Author(s):  
Tine L. Vandoorn ◽  
Lieven Degroote ◽  
Pieter Lindeboom ◽  
Dieter Meire ◽  
Lieven Vandevelde ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Distribution Network ◽  
Pilot Project ◽  
Energy Share

scholarly journals EU-28’s progress toward the 2020 renewable energy share: a club convergence analysis

2021 ◽  
Author(s):  
María José Presno ◽  
Manuel Landajo
Keyword(s):  
Renewable Energy ◽  
Probit Model ◽  
Club Convergence ◽  
Capita Expenditure ◽  
Heating And Cooling ◽  
Real Gdp ◽  
Club Membership ◽  
Real Gdp Per Capita ◽  
Energy Share ◽  
The Eu

AbstractThis paper assesses the convergence of the EU-28 countries toward their common goal of 20% in the renewable energy share indicator by year 2020. The potential presence of clubs of convergence toward different steady-state equilibria is also analyzed from both the standpoints of global convergence to the 20% goal and specific convergence to the various targets assigned to Member States. Two clubs of convergence are detected in the former case, each corresponding to different renewable energy source targets. A probit model is also fitted with the aim of better understanding the determinants of club membership, which seemingly include real GDP per capita, expenditure on environmental protection, energy dependence, and nuclear capacity, with all of them having statistically significant effects. Finally, convergence is also analyzed separately for the transport, heating and cooling, and electricity sectors.

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