scholarly journals Digitalisation potentials in the electricity ecosystem: lesson learnt from the comparison between Germany and Denmark

2021 ◽  
Vol 4 (S2) ◽  
Author(s):  
Thorsten Hack ◽  
Zheng Ma ◽  
Bo Nørregaard Jørgensen

AbstractDigitalisation potentials in the electricity sector are frequently discussed around the world, especially in Europe which has the largest interconnected continental electricity grid in the world. The analysis and comparison of electricity ecosystems between countries can help to enhance international understanding and cooperation. It can also enable businesses to expand. However, little literature has covered the cross-national comparisons of digitalisation potentials in the electricity sector. This paper uses the business ecosystem architecture development methodology to identify commonalities and differences between two electricity ecosystems: Germany and Denmark. The result shows that there are many similarities between the two countries, but the roles of market framework provider, market supervision, and metering point operator are performed by different actors. By comparing the value chain segments, the main differences between Denmark and Germany are the share of renewable energy generation, the organisation of the transmission system, smart meter installation & operations, and the national electricity data hub. Based on the comparisons, six recommendations for the digitalisation of the electricity ecosystem are proposed: digitalisation for enabling more renewable energy resources for electricity generation, digitalisation in the electricity grids, digitalisation ib. the electricity markets, digitalisation on the demand side, especially the transport sector, and regulation-driven digitalisation of the electricity ecosystem.

2020 ◽  
Vol 60 (2) ◽  
pp. 385
Author(s):  
James Arnott ◽  
Nadia Leibbrandt

Hydrogen is emerging as an alternate carrier of energy. It has the potential to play a key role in the decarbonisation of the energy sector. Governments around the world and in Australia are signalling interest in moving the hydrogen economy forward. Current efforts are focused on developing hydrogen visions and strategies, supported by investments and partnerships with industry to progress technology and unlock the barriers across the hydrogen value chain. KPMG has worked with CSIRO, ATCO Gas and the Australian Renewable Energy Agency (ARENA) in the development of a Hydrogen City tool (H2City Tool) (available for public download from the ARENA website). The H2City Tool assists users with screening communities that may be suitable for transitioning to a hydrogen-based energy future and provides two broad pathways: a hydrogen pathway and an electrification pathway, allowing a relative comparison to be made between these options. This abstract provides a summary of outcomes arising from analysis performed by KPMG using the H2City Tool, which illustrates the conditions and viability of several pathways to convert to a hydrogen-based energy future. These pathways were: Scenario 1 – converting a large metropolitan community to hydrogen; Scenario 2 – adopting hydrogen to fuel transport at scale; Scenario 3 – adopting hydrogen in electricity grid firming at scale; and Scenario 4 – adopting the concept of hydrogen hubs in regional Australia.


Daedalus ◽  
2012 ◽  
Vol 141 (2) ◽  
pp. 105-110 ◽  
Author(s):  
Mohamed T. El-Ashry

The world is entering a new energy era marked by concerns over energy security, climate change, and access by the poor to modern energy services. Yet the current energy path is not compatible with sustainable development objectives. Global demand for energy will continue to grow; so will CO2 emissions. Achieving a low-carbon energy world will require an unprecedented technological transformation in the way energy is produced and used. That transformation has begun, as renewables capacity continues to grow, prices continue to fall, and shares of global energy from renewables continue to increase. Government policies are the main driver behind renewable energy's meteoric growth. Still, the world is tapping only a small amount of the vast supply of renewable energy resources. There is broad consensus that the role of these resources should be expanded significantly in order to meaningfully address energy security, energy access, and climate change.


Author(s):  
Giga Abuseridze

The young law scientist from Georgia Giga Abuseridze has collected the information about subsidies in the renewable energy sector, their legal status and disagreements on the matter with the World Trade Organisation. As known, Latvia also does not possess unanimous opinion about the renewable energy resources. Jaunais tiesību zinātnieks no Gruzijas Giga Abuseridze ir apkopojis informāciju par subsīdijām atjaunojamās enerģijas nozarē, to juridisko statusu un domstarpībām šajā jautājumā ar Pasaules Tirdzniecības organizāciju. Kā zināms, arī Latvijā nav vienota viedokļa par atjaunojamiem energoresursiem.


2019 ◽  
Vol 3 (1) ◽  
pp. 52
Author(s):  
Hala Abdelmoez Mohamed

As the Egyptian population is increasing at a huge rate, the yearly housing demand is increasing in an equivalent rate. In addition, the whole world is suffering from an energy crises caused by the rapidly increasing consumption of world’s traditional energy resources, so the obvious solution is to go green, and depend much more on renewable energy resources. According to the statistical data available in Egyptian governmental authorities, the accumulated housing demand till 2014 was about 2,400,000 units. On the other hand, the yearly housing supply from private and public sectors is about 150,000 to 200,000 unit, Egyptian authorities declared that at summer 2010 air-conditioning devices increased to reach 3.000.000 ( three million) devices all over Egypt, mostly working from early mornings till 2 am next day to adjust temperatures that reach up to (45C) and more outside buildings to reach (25 C) or less inside. This behavior increased electricity consumption rapidly. Consequently, the electricity consumption rate in Egypt had increased by 13% more than 2009, which exceeds the maximum capacity power of the high dam by 7% to 8%, ministry of electricity announcements declared that to fill that gab we need 3000 megawatts at peak hours which costs the electricity sector up to 16.000.000.000 l.E. Accordingly, a new architectural design concept is proposed (Zero-Energy Housing Unit) to rely on the surrounding environmental conditions and new Green Architecture Techniques in order to provide human comfort based on renewable energy sources, provided that the common current governmental energy sources will be a backup system for the meanwhile.


Resources ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 149 ◽  
Author(s):  
Avtar ◽  
Sahu ◽  
Aggarwal ◽  
Chakraborty ◽  
Kharrazi ◽  
...  

Renewable energy has received noteworthy attention during the last few decades. This is partly due to the fact that fossil fuels are depleting and the need for energy is soaring because of the growing population of the world. This paper attempts to provide an idea of what is being done by researchers in remote sensing and geographical information system (GIS) field for exploring the renewable energy resources in order to get to a more sustainable future. Several studies related to renewable energy resources viz. geothermal energy, wind energy, hydropower, biomass, and solar energy, have been considered in this paper. The focus of this review paper is on exploring how remote sensing and GIS-based techniques have been beneficial in exploring optimal locations for renewable energy resources. Several case studies from different parts of the world which use such techniques in exploring renewable energy resource sites of different kinds have also been included in this paper. Though each of the remote sensing and GIS techniques used for exploration of renewable energy resources seems to efficiently sell itself in being the most effective among others, it is important to keep in mind that in actuality, a combination of different techniques is more efficient for the task. Throughout the paper, many issues relating to the use of remote sensing and GIS for renewable energy are examined from both current and future perspectives and potential solutions are suggested. The authors believe that the conclusions and recommendations drawn from the case studies and the literature reviewed in the present study will be valuable to renewable energy scientists and policymakers.


Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1110 ◽  
Author(s):  
Yunesky Masip ◽  
Anibal Gutierrez ◽  
Joel Morales ◽  
Antonio Campo ◽  
Meyli Valín

Providing energy to areas isolated from the electricity grid through the use of a smart integrated renewable energy system (SIRES) is proposed in this study for Valparaiso, Chile. The study analyzes the process of identifying the appropriate size of a SIRES considering technical and economic factors. An optimization model proposed in the literature was modified, and a subsequent spatial–temporal analysis of the different variables was conducted. The model comprises locally available renewable energy resources, such as biomass, biogas, wind power, solar photovoltaic, and thermal power. Furthermore, it was used to determine the energy potential of each of the isolated areas, identifying those areas in which the SIRES could be implemented as a sustainable solution. The design simulates the cost of the initial investment and energy generation in the chosen areas. The study also includes the selection of different system components and the use of the general model to determine the optimal combination of energy subsystems for isolated areas with the aim of minimizing the cost of energy generations. Finally, an economic evaluation showed that the use of a SIRES based mainly on solar energy supported by biomass, biogas, and mini-wind power costs approximately three times less than extending the electricity grid network.


2021 ◽  
Vol 120 (1) ◽  
pp. 163-175
Author(s):  
Gökçe Günel

Discussions of energy in sub-Saharan Africa tend to focus on leapfrogging, theorizing how some non-Western countries might be able to avoid carbon-intensive fuels, such as coal and oil, and directly start using renewable energy infrastructure, mainly solar. While theories of leapfrogging have been attractive, there has been limited research on how exactly renewable energy resources are adopted in sub-Saharan Africa, especially at times of unreliable access. Drawing on fieldwork with energy professionals in Accra and Tema, Ghana, this article analyzes the transformations in energy infrastructure in Ghana during the period following its 2012–16 electricity crisis, known as dumsor. It argues that an increasing volume of rooftop solar panels installed by affiuent individuals and institutions in the aftermath of the crisis has led to declining participation in the electricity grid, and thereby higher electricity rates for everyone else with no choice but to remain on the grid. In response to such growing inequality, decision-makers searched for innovative business models, appealing to green loans as ways of expanding this class of solar consumers. As a result, while a select few have managed to leapfrog to renewables, others continue to endure the grid, struggling with unsteady electricity provision and increasing tariffs.


Author(s):  
Suudan Gökçe Gök

The energy sector holds a crucial strategic importance for development and its sustainability. However, the energy reserves in Turkey are insufficient for the increasing energy demand. For this reason, the need for alternative energy sources has emerged. The fact that fossil fuels used in energy production will be exhausted and their damaging effects on the environment has made it inevitable for the world to use renewable energy. In Turkey, the following are the main energy sources used in electricity production: hydraulic sources, brown coal, natural gas, coal and fuel oil. The use of renewable energy sources in electricity production has shown a considerable development in the world over the past few decades. However, these energy resources have yet to be exploited to any large extent in Turkey. In this chapter, the range of potential renewable energy resources available for electricity production in Turkey will be analyzed in order to determine the necessary technical substructure to make these renewable energy resources more attractive.


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