scholarly journals Modelling the material and energy costs of the transition to low-carbon energy

2018 ◽  
Vol 189 ◽  
pp. 00018 ◽  
Author(s):  
Olivier Vidal ◽  
Hugo Le Boulzec ◽  
Cyril François

The evolution from 2000 to 2050 of the needs in concrete, steel, aluminium and copper to build the infrastructure of electricity generation is modelled for the scenarios of García-Olivares et al. (2012), Ecofys-WWF (2012) and the blue map scenario of the IEA (2010). A simple dynamic model is used to estimate the primary production, recycling and lost flows as well as the cumulative stocks of material to be produced, to go into the infrastructure and to be lost. The energy of material production is also estimated. When compared with the expected evolution of global material and energy demands, the modelling results suggest that i) the transition to low-carbon energies implies a substantial increase of raw materials and energy consumption, ii) the shorter lifetime of wind and solar facilities and the loss of recycling implies that the total amount of metal to be produced during the deployment of the infrastructure of energy is significantly higher than their amount stocked in the infrastructure, and iii) the needs in materials and energy will occur in a period of expected increase of primary metal consumption at the world scale and limited potential of recycling

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.


2021 ◽  
Vol 308 ◽  
pp. 01017
Author(s):  
Yi Fan ◽  
Sibo Ouyang ◽  
Baoxin Zhang ◽  
Wenmin Wang

As environmental awareness grows, the world is increasingly focused on living a low-carbon, energy-sustainable lifestyle. At the same time, with the global outbreak of the COVID-19 in 2020, online concerts are growing rapidly to maintain social distance between people and keep isolated lives rich. Therefore, in this survey, we focus on the online music scene, which has flourished during the epidemic, and compares various indicators to find out which of the two forms of music, online or offline, is more sustainable. The article will use questionnaires, literature surveys, and three indicators - carbon footprint, water footprint, and economy -to discuss how much energy is consumed by both online and offline concerts. The energy consumption of a single person at an online concert is less than that of an offline concert. This research study will demonstrate to society the superiority of online concerts in terms of sustainability through a scientific and rigorous approach, which will be beneficial to reducing global energy consumption.


2020 ◽  
Vol 165 ◽  
pp. 06043
Author(s):  
Junshu Feng ◽  
Peng Wang

In the context of a global response to climate change, the key to the future low-carbon energy transition is “electricity-cantered”, which makes use of renewable energy. This paper studied the typical modes of improving electrification from a global perspective, including clean energy driving mode, industry upgrading driving mode, regional resource integrated planning mode, power grid-led mode and inclusive mode for all. The research can provide options of electrification development in different regions all over the world.


Damming rivers is often seen as the panacea of the neo-liberal development paradigm. It is believed to be the fit all solution to problems of agricultural production, flood control, irrigation in arid and semi –arid regions, electricity generation as well as urban development. The industrialization of the world and the adoption of a capital intensive, mechanized and marketoriented production process has dramatically altered the environment as resource-extraction and resource consumption increased manifold. Nature, in fact, became a source of supply of raw materials for feeding the ever growing needs of modernization and development as well as a dump-yard for material waste, slowly heading towards a perilous condition. The paper, therefore, seeks to explore and investigate the issue of damming rivers as a domineering force over nature explicating the power of science over nature.


2021 ◽  
Vol 13 (16) ◽  
pp. 9068
Author(s):  
Ali Arababadi ◽  
Stephan Leyer ◽  
Joachim Hansen ◽  
Reza Arababadi

The development of electric vehicles (EVs) is happening around the world with different goals. Many researchers have worked on various aspects of EVs from technological and supporting policy issues to the development of required infrastructures. However, arguing the proper time to realize the spreading of EVs in each region is neglected. For this purpose, the performance of two contextual factors in each region on the growth of EVs is investigated. Low carbon electricity generation and greenhouse gases emissions are the selected parameters, which are explored in the context of nine European countries, besides Luxembourg, to find their impacts on the issue. These countries have the highest shares of EVs in their energy systems. The achieved results are applied to the Luxembourg case to evaluate how different contextual factors may have hindered the growth of EVs here. In the next step, an analogy between the spreading EVs in Luxembourg and leapfrogging different technologies in the world is made to build a theory of the development of EVs. The theory defines the spreading EVs in Luxembourg as a leapfrogging energy technology to adopt new technology. It is concluded that the development of EVs has a normal priority in Luxembourg.


Author(s):  
Nick Jenkins

Energy for a modern society must be affordable, reliable, and sustainable. ‘Future energy systems’ considers future electricity generation and electricity networks, including the Smart Grid. Electricity systems are expensive and the choice of technologies to be used is heavily influenced by their costs. Low carbon generation, such as nuclear and renewables, is particularly capital intensive. Local energy systems and microgrids are also considered alongside future gas systems. It is now being recognized that for the development of low carbon energy systems a more integrated and regional approach to energy supply is likely to be preferable. There are no short-term easy solutions to energy supply and all choices involve compromise.


Significance The electricity sector is undergoing a radical shift in structure, owing to the build-out of variable sources of renewable energy, in pursuit of reductions in carbon emissions. On July 22, the French National Assembly gave final approval to an energy transition law that could provide further impetus to this process. The combination of rising renewable electricity generation and stagnant demand is shrinking the market for conventional thermal generation. This is undermining traditional utilities' revenues, asset values and existing business models. Impacts Under the new French law, renewables are to account for 40% of electricity generation and 32% of energy consumption by 2030. Wind and solar, the two main forms of new renewable generation, make up 11.6% of installed French generating capacity. The French government is pushing the transition to low-carbon energy partly because Paris hosts December's UN climate change conference. President Francois Hollande may also be seeking to appeal to the Green Party and its voters ahead of the 2017 presidential election.


2021 ◽  
Author(s):  
Carlos Vargas ◽  
Luca Caracciolo ◽  
Philip Ball

Abstract 33 Megacities are distributed around the world, a number that will increase to 43 by 2030. Megacities are critical for the world’s economy, however, their management is particularly challenging in terms of transportation, water, waste, sanitation, security, electricity, and environmental impact. The increase of energy demand, in parallel to population growth and climate change, requires investment in sustainable energies. Geothermal energy – differently from solar, wind and hydroelectric is independent from weather conditions. A number of megacities around the world are located in areas with anomalous geothermal gradients, proximal to the margins of tectonic plates. This colocation makes geothermal an attractive resilient, baseload, low-carbon, energy source helping Megacities reduce their environmental impact. In this paper, we discuss the advantages of using geothermal energy, leading the study for the city of Bogotá, and applying the same workflow for Los Angeles and Jakarta. We aim to provoke the inclusion of geothermal in energy policies of other megacities around the world.


2020 ◽  
Vol 1 (2) ◽  
pp. 245-247
Author(s):  
Vicente Lopez-Ibor Mayor ◽  
Raphael J. Heffron

It is advanced here that a principle-based approach is needed to develop the energy sector during and after COVID-19. The economic recovery that is needed needs to revolve around ensuring that no one is left behind, and it should be an inclusive transition to a secure and stable low-carbon energy future. There are seven core energy law principles that if applied to the energy sector could enable this to be achieved.


Author(s):  
Lina Yurievna Lagutkina

The author of the article discloses the prospects of development of the world feed production for aquaculture based on the analysis of key innovative technological and market trends. The author specifies that shortage, high cost, low ecological compatibility of traditional raw materials - fish flour - are among major limiting factors in the development of production of feeds for aquaculture. This fact, in turn, limits sustainable development of aquaculture both in Russia, and in the world in general. The article presents the overview of a current status of the world industry of feed production in aquaculture, where the regional situation is studied, as well. For the first time, there is given the outlook of innovative technologies in feed production based on the alternative sources of protein (on the example of projects of leading aquabiotechnological companies) which will determine industry’s objectives for the mid-term perspective.


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