scholarly journals The national-level energy ladder and its carbon implications

2013 ◽  
Vol 18 (4) ◽  
pp. 484-503 ◽  
Author(s):  
Paul J. Burke
Keyword(s):  
Carbon Dioxide Emissions ◽  
Nuclear Power ◽  
Fossil Fuels ◽  
Fossil Fuel ◽  
National Level ◽  
Carbon Intensity ◽  
Level Energy ◽  
Low Carbon ◽  
Poor Countries ◽  
Low Carbon Energy

AbstractThis paper uses data for 134 countries for the period 1960–2010 to document an energy ladder that nations ascend as their economies develop. On average, economic development results in an overall substitution from the use of biomass to energy sourced from fossil fuels, and then increasingly towards nuclear power and certain low-carbon modern renewables such as wind power. The process results in the carbon intensity of energy evolving in an inverse-U manner as per capita incomes increase. Fossil fuel-poor countries climb more quickly to the low-carbon upper rungs of the national-level energy ladder and so typically experience larger reductions in the carbon intensity of energy as they develop. Leapfrogging to low-carbon energy sources on the upper rungs of the national-level energy ladder is one route via which developing countries can reduce the magnitudes of their expected upswings in carbon dioxide emissions.

2. Why do we need renewables?

2020 ◽  
pp. 16-29
Author(s):  
Nick Jelley
Keyword(s):  
Climate Change ◽  
Carbon Dioxide Emissions ◽  
Internal Combustion Engines ◽  
Fossil Fuels ◽  
Wind Farms ◽  
Clean Energy ◽  
Low Carbon ◽  
Net Zero ◽  
Dangerous Climate Change ◽  
Low Carbon Energy

‘Why do we need renewables?’ describes the dangers of fossil fuels and explains the importance of renewable energy as an alternative. It shows that the use of fossil fuels causes global warming and climate change, leading to widespread concern, and also to a growing realization of the harm caused by the air pollution from coal burning and from internal combustion engines in cars and lorries. These threats are causing a switch away from fossil fuels to renewables that is gaining impetus from the growing awareness of the increased intensity and frequency of extreme weather seen in recent years. This transition is also being aided by the falling price of clean energy from renewables, in particular, solar and wind farms, which will become the dominant sources. The area of land or sea required for these farms is readily available, as are the back-ups required to handle their variability. Alternative supplies of low-carbon energy are examined. In the Paris Agreement in 2015, it was recognized that carbon dioxide emissions must reach net-zero by 2050 to avoid dangerous climate change.

scholarly journals Reduced Use of Fossil Fuels can Reduce Supply of Critical Resources

2021 ◽  
Vol 6 (2) ◽  
Author(s):  
André Månberger
Keyword(s):  
Renewable Energy ◽  
Fossil Fuels ◽  
Fossil Fuel ◽  
Photovoltaic Cell ◽  
Low Carbon ◽  
Energy Technologies ◽  
Supply Potential ◽  
Recoverable Resources ◽  
Low Carbon Energy ◽  
Critical Resources

AbstractPrevious research has identified that climate change mitigation policies could increase demand for resources perceived as critical, because these are used in many renewable energy technologies. This study assesses how reducing the extraction and use of fossil fuels could affect the supply of (i) elements jointly produced with fossil fuels and (ii) elements jointly produced with a host that is currently mainly used in fossil fuel supply chains. Several critical resources are identified for which supply potential from current sources is likely to decline. Some of these, e.g. germanium and vanadium, have uses in low-carbon energy systems. Renewable energy transitions can thus simultaneously increase demand and reduce supply of critical elements. The problem is greatest for technology groups in which by-products are more difficult to recycle than the host. Photovoltaic cell technology stands out as one such group. Phasing out fossil fuels has the potential to reduce both the supply potential (i.e. primary flow) and recoverable resources (i.e. stock) of materials involved in such technology groups. Further studies could examine possibilities to increase recovery rates, extract jointly produced resources independently of hosts and how the geographical distribution of by-product supply sources might change if fossil fuel extraction is scaled back.

Low Carbon Energy Transitions

2018 ◽  
Author(s):  
Kathleen Araújo
Keyword(s):  
Nuclear Power ◽  
National Policy ◽  
Good News ◽  
Energy Planning ◽  
Low Carbon ◽  
Technological Complexity ◽  
Energy Transitions ◽  
Oil Crisis ◽  
Government Workers ◽  
Low Carbon Energy

The world is at a pivotal crossroad in energy choices. There is a strong sense that our use of energy must be more sustainable. Moreover, many also broadly agree that a way must be found to rely increasingly on lower carbon energy sources. However, no single or clear solution exists on the means to carry out such a shift at either a national or international level. Traditional energy planning (when done) has revolved around limited cost projections that often fail to take longer term evidence and interactions of a wider set of factors into account. The good news is that evidence does exist on such change in case studies of different nations shifting toward low-carbon energy approaches. In fact, such shifts can occur quite quickly at times, alongside industrial and societal advance, innovation, and policy learning. These types of insights will be important for informing energy debates and decision-making going forward. Low Carbon Energy Transitions: Turning Points in National Policy and Innovation takes an in-depth look at four energy transitions that have occurred since the global oil crisis of 1973: Brazilian biofuels, Danish wind power, French nuclear power, and Icelandic geothermal energy. With these cases, Dr. Araújo argues that significant nationwide shifts to low-carbon energy can occur in under fifteen years, and that technological complexity is not necessarily a major impediment to such shifts. Dr. Araújo draws on more than five years of research, and interviews with over 120 different scientists, government workers, academics, and members of civil society in completing this study. Low Carbon Energy Transitions is written for for professionals in energy, the environment and policy as well as for students and citizens who are interested in critical decisions about energy sustainability. Technology briefings are provided for each of the major technologies in this book, so that scientific and non-scientific readers can engage in more even discussions about the choices that are involved.

Foundations for a Low-Carbon Energy System in China

2021 ◽  
Author(s):  
Henry Lee ◽  
Daniel P. Schrag ◽  
Matthew Bunn ◽  
Michael Davidson ◽  
Wei Peng ◽  
...  
Keyword(s):  
Fossil Fuels ◽  
Energy System ◽  
Electricity Sector ◽  
Electricity Production ◽  
Low Carbon ◽  
Electricity Pricing ◽  
Energy Policies ◽  
Near Term ◽  
Low Carbon Energy

Climate change is a key problem of the 21st century. China, as the largest emitter of greenhouse gases, has committed to stabilize its current emissions and dramatically increase the share of electricity production from non-fossil fuels by 2030. However, this is only a first step: in the longer term, China needs to aggressively strive to reach a goal of zero-emissions. Through detailed discussions of electricity pricing, electric vehicle policies, nuclear energy policies, and renewable energy policies, this book reviews how near-term climate and energy policies can affect long-term decarbonization pathways beyond 2030, building the foundations for decarbonization in advance of its realization. Focusing primarily on the electricity sector in China - the main battleground for decarbonization over the next century – it provides a valuable resource for researchers and policymakers, as well as energy and climate experts.

scholarly journals Tuning LiBH4 for Hydrogen Storage: Destabilization, Additive, and Nanoconfinement Approaches

Molecules ◽  
2019 ◽  
Vol 25 (1) ◽  
pp. 163 ◽  
Author(s):  
Julián Puszkiel ◽  
Aurelien Gasnier ◽  
Guillermina Amica ◽  
Fabiana Gennari
Keyword(s):  
Rare Earth ◽  
Hydrogen Storage ◽  
Fossil Fuels ◽  
Metal Hydrides ◽  
Earth Metal ◽  
Energy System ◽  
Running Economy ◽  
Low Carbon ◽  
Energy Needs ◽  
Low Carbon Energy

Hydrogen technology has become essential to fulfill our mobile and stationary energy needs in a global low–carbon energy system. The non-renewability of fossil fuels and the increasing environmental problems caused by our fossil fuel–running economy have led to our efforts towards the application of hydrogen as an energy vector. However, the development of volumetric and gravimetric efficient hydrogen storage media is still to be addressed. LiBH4 is one of the most interesting media to store hydrogen as a compound due to its large gravimetric (18.5 wt.%) and volumetric (121 kgH2/m3) hydrogen densities. In this review, we focus on some of the main explored approaches to tune the thermodynamics and kinetics of LiBH4: (I) LiBH4 + MgH2 destabilized system, (II) metal and metal hydride added LiBH4, (III) destabilization of LiBH4 by rare-earth metal hydrides, and (IV) the nanoconfinement of LiBH4 and destabilized LiBH4 hydride systems. Thorough discussions about the reaction pathways, destabilizing and catalytic effects of metals and metal hydrides, novel synthesis processes of rare earth destabilizing agents, and all the essential aspects of nanoconfinement are led.

Sustainable Development and Turkey's Biomass Energy Potential

2017 ◽  
pp. 494-518
Author(s):  
Coşkun Karaca ◽  
M. Mustafa Erdoğdu
Keyword(s):  
Fossil Fuels ◽  
Fossil Fuel ◽  
Oil And Gas ◽  
Scientific Evidence ◽  
Biomass Energy ◽  
Low Carbon ◽  
Energy Potential ◽  
Low Carbon Economy ◽  
Emerging Nations ◽  
Human Needs

Although energy is indispensable for the provision of basic human needs and economic growth, it simultaneously threatens the basic elements of life when its production and usage is based on fossil fuels. Scientific evidence proves that high carbon emission is the main reason behind climate change. Therefore, producing energy from more sustainable type of energies has great importance not only to ensure preservation of a clean and livable environment for future generations, but also to reduce high dependence on fossil fuels for the production of energy. The latter issue is particularly important for emerging nations such as Turkey, which do not possess large fossil fuel reserves. Currently, Turkey is in a position to meet less than one third of its energy need domestically. Increasing the share of energy produced from biomass would help to create a low-carbon economy and cleaner environment, and increase the security of the energy supply and reduce dependence on imported oil and gas. The present study focuses on the level of Turkey's biomass energy potential and the way in which to make efficient use of this potential. The chapter forwards two main questions: (1) To what extent can the quality of environment be improved via biomass energy? (2) What changes occur in economic variables such as foreign trade, employment, and balance of payments when fossil fuel is substituted with biomass energy?

The Color of Energy: The Competition to be the Energy of the Future

2021 ◽  
Author(s):  
Hon Chung Lau
Keyword(s):  
Financial Incentives ◽  
Large Scale ◽  
Fossil Fuels ◽  
Carbon Capture And Storage ◽  
Green Energy ◽  
Renewable Energies ◽  
Carbon Intensity ◽  
Low Carbon ◽  
Energy Carriers ◽  
Co2 Intensity

Abstract Energies may be described as brown, blue or green. Brown energies are CO2-emitting fossil fuels. Blue energies employ carbon capture and storage (CCS) technologies to remove the emitted CO2 from brown energies. Green energies are zero or low CO2-emitting renewable energies. Likewise, energy carriers such as electricity and hydrogen may be described as brown, blue or green if they are produced from brown, blue or green energy, respectively. The transition from a high carbon intensity to a low carbon intensity economy will require the decarbonization of three major sectors: power, transport and industry. By analyzing the CO2 intensity and levelized cost of energy (LCOE) of energy and energy carriers of different colors, we show that renewable energies are best used in replacing fossil fuels in the power sector where it has the most impact in reducing CO2 emission. This will consume the majority of new additions to renewable energies in the near to medium future. Consequently, the decarbonation of the transport and industry sectors must begin with the use of blue electricity, blue fossil fuels and blue hydrogen. To achieve this, implementation of large-scale CCS projects will be necessary, especially outside of USA and northern Europe. However, this will not happen until significant financial incentives in the form of carbon tax or carbon credit becomes available from national governments. Furthermore, private-public partnership and intergovernmental cooperation will be needed to implement these CCS projects.

Research Design, Scoping Tools, and Preview

2018 ◽  
Author(s):  
Kathleen Araújo
Keyword(s):  
Fossil Fuels ◽  
International Energy Agency ◽  
Field Work ◽  
Energy System ◽  
Oil Shocks ◽  
Low Carbon ◽  
Energy Agency ◽  
Technology Learning ◽  
Energy Technologies ◽  
Low Carbon Energy

This chapter outlines the design of the current study. It discusses my underlying logic for scoping energy system change with theory-building in the form of (1) a framework on intervention that operationalizes insights from the previous chapter and (2) conceptual models of structural readiness. A brief review then follows of related, global developments to provide broader context for the cases. The chapter concludes with a preview of the transitions that will be discussed in depth in subsequent chapters. This book draws on my research of four national energy system transitions covering the period since 1970. I selected a timeframe that reflected a common context of international events which preceded as well as followed the oil shocks of 1973 and 1979. Such framing allowed me to trace policy and technology learning over multiple decades for different cases. I completed field work for this project primarily between 2010 and 2012, with updates continuing through to the time this book went to press. I selected cases from more than 100 countries in the International Energy Agency (IEA) databases. The ones that I chose represented countries which demonstrated an increase of 100% or more in domestic production of a specific, low carbon energy and the displacement of at least 15 percentage points in the energy mix by this same, low carbon energy relative to traditional fuels for the country and sector of relevance. I utilized adoption and displacement metrics to consider both absolute and relative changes. Final cases reflect a diversity of energy types and, to some extent, differences in the socio-economic and geographic attributes of the countries. The technologies represent some of the more economically-competitive substitutes for fossil fuels. It’s important to emphasize that the number of cases was neither exhaustive nor fully representative. Instead, the cases reflect an illustrative group of newer, low carbon energy technologies for in depth evaluation. Each of the cases shares certain, basic similarities. These include a national energy system comprised of actors, inputs, and outputs with systemic architecture connecting the constituent parts in a complex network of energy-centered flows over time—including extraction, production, sale, delivery, regulation, and consumption.

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