Jordan toward a 100% renewable electricity system

2020 ◽  
Vol 147 ◽  
pp. 423-436 ◽  
Author(s):  
Suhil Kiwan ◽  
Elyasa Al-Gharibeh
Joule ◽  
2021 ◽  
Author(s):  
Paul Denholm ◽  
Douglas J. Arent ◽  
Samuel F. Baldwin ◽  
Daniel E. Bilello ◽  
Gregory L. Brinkman ◽  
...  

Energies ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2597 ◽  
Author(s):  
Maria Taljegard ◽  
Lisa Göransson ◽  
Mikael Odenberger ◽  
Filip Johnsson

This study considers whether electric vehicles (EVs) can be exploited as a flexibility management strategy to stimulate investments in and operation of renewable electricity under stringent CO2 constraints in four regions with different conditions for renewable electricity (Sweden, Germany, the UK, and Spain). The study applies a cost-minimisation investment model and an electricity dispatch model of the European electricity system, assuming three types of charging strategies for EVs. The results show that vehicle-to-grid (V2G), i.e., the possibility to discharging the EV batteries back to grid, facilitates an increase in investments and generation from solar photovoltaics (PVs) compare to the scenario without EVs, in all regions except Sweden. Without the possibility to store electricity in EV batteries across different days, which is a technical limitation of this type of model, EVs increase the share of wind power by only a few percentage points in Sweden, even if Sweden is a region with good conditions for wind power. Full electrification of the road transport sector, including also dynamic power transfer for trucks and buses, would decrease the need for investments in peak power in all four regions by at least 50%, as compared to a scenario without EVs or with uncontrolled charging of EVs, provided that an optimal charging strategy and V2G are implemented for the passenger vehicles.


2021 ◽  
Vol 38 ◽  
pp. 100753
Author(s):  
Sourabh Jain ◽  
Nikunj Kumar Jain ◽  
Piyush Choudhary ◽  
William Vaughn

2017 ◽  
Vol 8 (4) ◽  
pp. 1047-1060 ◽  
Author(s):  
Jan Wohland ◽  
Mark Reyers ◽  
Juliane Weber ◽  
Dirk Witthaut

Abstract. Limiting anthropogenic climate change requires the fast decarbonization of the electricity system. Renewable electricity generation is determined by the weather and is hence subject to climate change. We simulate the operation of a coarse-scale fully renewable European electricity system based on downscaled high-resolution climate data from EURO-CORDEX. Following a high-emission pathway (RCP8.5), we find a robust but modest increase (up to 7 %) of backup energy in Europe through the end of the 21st century. The absolute increase in the backup energy is almost independent of potential grid expansion, leading to the paradoxical effect that relative impacts of climate change increase in a highly interconnected European system. The increase is rooted in more homogeneous wind conditions over Europe resulting in intensified simultaneous generation shortfalls. Individual country contributions to European generation shortfall increase by up to 9 TWh yr−1, reflecting an increase of up to 4 %. Our results are strengthened by comparison with a large CMIP5 ensemble using an approach based on circulation weather types.


Author(s):  
Mads Raunbak ◽  
Timo Zeyer ◽  
Kun Zhu ◽  
Martin Greiner

Due to its spatio-temporal variability, the mismatch between the weather and demand patterns challenges the design of highly renewable energy systems. A principal component analysis is applied to a simplified networked European electricity system with a high share of wind and solar power generation. It reveals a small number of important mismatch patterns, which explain most of the system's required backup and transmission infrastructure. Whereas the first principal component is already able to reproduce most of the temporal mismatch variability for a solar dominated system, a few more principal components are needed for a wind dominated system. Due to its monopole structure the first principal component causes most of the system's backup infrastructure. The next few principal components have a dipole structure and dominate the transmission infrastructure of the renewable electricity network.


Author(s):  
Lucy Baker

This chapter situates South Africa’s new renewable energy sector within the context of the country’s electricity system and in turn its unique political economy. The author charts major developments in the country’s energy policy and governance since the end of apartheid and shows how electricity policy is determined by economic, political, and technological factors. Focusing on shifts that have taken place in the country’s electricity governance and policy-making, from a period of generation surplus in 1980s to the supply-side constraints of the present, the chapter asks how, why, and when South Africa’s renewable electricity sector has emerged. The author examines the contested negotiation of key policies, which have been fundamental to the introduction of a renewable energy sector, considers how the new renewable energy sector has evolved thus far, and raises key challenges and concerns for its future development.


Sign in / Sign up

Export Citation Format

Share Document