scholarly journals Does Combined Heat and Power Play the Role of a Bridge in Energy Transition? Evidence from a Cross-Country Analysis

2019 ◽  
Vol 11 (4) ◽  
pp. 1035 ◽  
Author(s):  
Hyo-Jin Kim ◽  
Jeong-Joon Yu ◽  
Seung-Hoon Yoo

In an era of energy transition involving an increase in renewable energy and a reduction in coal-fired power generation and nuclear power generation, the role of combined heat and power (CHP) as a bridging energy is highly emphasized. This article attempts to look empirically into the impact of increasing the share of renewable energy in total electricity generation on CHP share in total electricity generation in a cross-country context. Data from 35 countries during the period 2009–2015 were used, and the least absolute deviations estimator was applied to obtain a more robust parameter estimate. The results showed that a 1%p increase in the share of renewable energy significantly increased the CHP share by 0.87%p. Therefore, the hypothesis that CHP serves as bridge energy in the process of energy transition was established.

2021 ◽  
Author(s):  
Haifa Saadaoui

Abstract This study focuses on the role of institutional factors as well as financial development in renewable energy transition in Middle East and North Africa (MENA) region over the period 1990-2018 using the ARDL PMG method. The investigation of long-run and short-run analysis confirms that institutional and political factors play a key role in promoting the transition to renewable energy, and shows that improving these factors can lead to decarbonization of the energy sector in the long run. Another important finding is that global financial development does not have a significant effect on the transition process in the long run, implying that the whole financial system needs a fundamental structural change to accelerate the substitution between polluting and clean energies. However, in the short term, the impact appears to be negative and significant, highlighting the inadequacy of financial institutions and financial markets in promoting the region’s sustainable path. Moreover, income drives the transition to renewable energy in both short and long term. The causality results show that both financial development and institutional quality lead to renewable energy transition, while there is a bidirectional link between income and renewable energy.This study can provide a very useful recommendation to promote a clean transition in the MENA region.


2019 ◽  
Vol 31 (7) ◽  
pp. 1181-1190 ◽  
Author(s):  
Hyo-Jin Kim ◽  
Seul-Ye Lim ◽  
Seung-Hoon Yoo

The South Korean government is pursuing an energy transition, which means a reduction in nuclear power and coal-fired power generation, and an expansion into renewable energy. This study seeks to evaluate the South Korean public’s preference for a mix of power generation sources. For this purpose, 1000 households throughout the country were randomly selected and a choice experiment survey of them was undertaken in March 2018. We considered four attributes: the ratio of nuclear power, the ratio of coal-fired generation, the ratio of natural gas-fired generation, and the ratio of renewable energy. An increase in the monthly electric bill was also considered as an attribute. The results of applying the choice experiment approach show that households were willing to accept an increase in their monthly electric bill by KRW 192 (USD 0.17) and KRW 165 (USD 0.15) for reducing the proportion of nuclear power and coal, respectively, by 1%p. They were willing to pay KRW 159 (USD 0.14) and KRW 409 (USD 0.38) for raising the ratio of natural gas and renewable energy, respectively, through an increase in the monthly electricity bill. The findings reveal that the government’s energy transition has overall support from the public.


2021 ◽  
Vol 12 (1) ◽  
pp. 92-110
Author(s):  
Oluwaseun Viyon Ojo

Climate change and global warming are undeniably undermining global development with developing or emerging economies being the worse hit in this unfortunate development. In recent times, it has become necessary to adopt effective adaptation measures that mitigate the impact of climate change on the social, political, and economic environment. A global shift to low-carbon energy technologies through the gradual integration of renewable energy resources in the global energy mix has been generally proposed. Whilst legal and regulatory initiatives are indeed crucial in driving this global energy transition, it is equally imperative that the necessary capital is unlocked to finance the construction, development, and expansion of renewable energy projects in Africa. This paper focused on examining the impact of renewable energy technologies on climate change mitigation, and analysed the role of Development Financial Institutions (DFIs) in unlocking the vast opportunities associated with renewable energy technologies or projects, with a view to driving the clean energy transition in Africa.


Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5338
Author(s):  
Ronelly De Souza ◽  
Melchiorre Casisi ◽  
Diego Micheli ◽  
Mauro Reini

The energy transition towards a scenario with 100% renewable energy sources (RES) for the energy system is starting to unfold its effects and is increasingly accepted. In such a scenario, a predominant role will be played by large photovoltaic and wind power plants. At the same time, the electrification of energy consumption is expected to develop further, with the ever-increasing diffusion of electric transport, heat pumps, and power-to-gas technologies. The not completely predictable nature of the RES is their well-known drawback, and it will require the use of energy storage technologies, in particular large-scale power-to-chemical conversion and chemical-to-power re-conversion, in view of the energy transition. Nonetheless, there is a lack in the literature regarding an analysis of the potential role of small–medium CCHP technologies in such a scenario. Therefore, the aim of this paper is to address what could be the role of the Combined Heat and Power (CHP) and/or Combined Cooling Heat and Power (CCHP) technologies fed by waste heat within the mentioned scenario. First, in this paper, a review of small–medium scale CHP technologies is performed, which may be fed by low temperature waste heat sources. Then, a review of the 100% RE scenario studied by researchers from the Lappeenranta University of Technology (through the so-called “LUT model”) is conducted to identify potential low temperature waste heat sources that could feed small–medium CHP technologies. Second, some possible interactions between those mentioned waste heat sources and the reviewed CHP technologies are presented through the crossing data collected from both sides. The results demonstrate that the most suitable waste heat sources for the selected CHP technologies are those related to gas turbines (heat recovery steam generator), steam turbines, and internal combustion engines. A preliminary economic analysis was also performed, which showed that the potential annual savings per unit of installed kW of the considered CHP technologies could reach EUR 255.00 and EUR 207.00 when related to power and heat production, respectively. Finally, the perspectives about the carbon footprint of the CHP/CCHP integration within the 100% renewable energy scenario were discussed.


2021 ◽  
Vol 13 (4) ◽  
pp. 2241
Author(s):  
Moritz Ehrtmann ◽  
Lars Holstenkamp ◽  
Timon Becker

Community energy actors play an important role in the energy transition, fostering the diffusion of sustainable innovation in the renewable energy market. Because market conditions for business models in the renewable energy sector are changing and feed-in-tariff (FiT) schemes expiring, community energy companies are in the process of innovating their business models. In recent years, several community energy companies in Germany have entered the electricity retail market selling locally generated electricity from their renewable energy installations to customers in their region. We explore the evolving regional electricity business models for community energy companies in Germany, related governance structures, and the role they play for a sustainable energy transition. In order to implement these complex business models, community energy companies cooperate with professional marketing partners (intermediaries), which are capable of taking over the tasks and obligations of electricity suppliers. Through a series of expert interviews and desk research, we identify three distinctive regional electricity business models and examine opportunities and challenges to their implementation. Results show that there are different forms of cooperation, leading to specific governance structures and creating a set of new value propositions. Through these forms of cooperation, business networks emerge, which can function as incubators for sustainable innovation and learning for the post-FiT era.


2019 ◽  
Vol 12 (5) ◽  
pp. 156-171
Author(s):  
A. V. Zimakov

Clean energy transition is one of major transformation processes in the EU. There are different approaches among EU countries to decarbonization of their energy systems. The article deals with clean energy transition in France with the emphasis on power generation. While this transformation process is in line with similar developments in the EU, the Franch case has its distinct nature due to nuclear power domination in electricity production there. It represents a challenge for the current model as the transition is linked to a sharp drop of nuclear share in the power mix. It is important to understand the trajectory of further clean energy transition in France and its ultimate model. The article reviews the historical roots of the current model (which stems from Messmer plan of the 1970-es) and its development over years, as well as assesses its drawbacks and merits in order to outline possible future prospects. The conclusion is that the desired reduction of nuclear energy is linked not solely to greening process but has a complex of reasons, the ageing of nuclear reactors being one of them. Nuclear power remains an important low-carbon technology allowing France to achieve carbon neutrality by 2050. A desired future energy model in France can be understood based on the analysis of new legislation and government action plans. The targeted model is expected to balance of nuclear and green energy in the generation mix in 50% to 40% proportion by 2035, with the rest left to gas power generation. Being pragmatic, French government aims at partial nuclear reactors shut down provided that this will not lead to the rise of GHG emissions, energy market distortions, or electricity price hikes. The balanced French model is believed to be a softer and socially comfortable option of low-carbon model.


2021 ◽  
Vol 44 (1) ◽  
pp. 11-17
Author(s):  
Sheldon Marshall ◽  
Randy Koon Koon

The integration of renewable energy (RE) into the overall energy mix of Caribbean nations has been increasing in recent times. The volatile nature of the carbon-based industry through fluctuations in prices of fossil fuel based-products renders it necessary to promote an aggressive energy profile transition to renewable energy, as this is crucial to energy security in these vulnerable Small Island Developing States (SIDS). The nation of Barbados has notably understood this reality and, as such, its government has endorsed the approach of 100% RE implementation by 2030. This paper explores three distinctive annual growth rate (AGR) scenarios to assess the impact on the expected power generation, economic and environmental parameters through the period of 2019-2030. Notable findings at a high case scenario for 2030 (at an AGR of 3%) projects a power generation of 1.343 Tera-watts-hour (TWh), which will displace 790,500 barrels of oil equivalent (boe), resulting in an abatement of approximately 0.95 million tons of carbon dioxide into the atmosphere.


Author(s):  
Elizabeth Brown Doris ◽  
Sarah Busche ◽  
Stephen Hockett ◽  
Joyce McLaren Loring

State policies can support renewable energy development by driving markets, providing certainty in the investment market, and incorporating the external benefits of the technologies into cost/benefit calculations. Using statistical analyses and policy design best practices, this paper quantifies the impact of state-level policies on renewable energy development in order to better understand the role of policy on development and inform policy makers on the policy mechanisms that provide maximum benefit. The results include the identification of connections between state policies and renewable energy development, as well as a discussion placing state policy efforts in context with other factors that influence the development of renewable energy (e.g. federal policy, resource availability, technology cost, public acceptance).


2021 ◽  
Author(s):  
Blanka Bartok

<p>As solar energy share is showing a significant growth in the European electricity generation system, assessments regarding long-term variation of this variable related to climate change are becoming more and more relevant for this sector. Several studies analysed the impact of climate change on the solar energy sector in Europe (Jerez et al, 2015) finding light impact (-14%; +2%) in terms of mean surface solar radiation. The present study focuses on extreme values, namely on the distribution of low surface solar radiation (overcast situation) and high surface solar radiation (clear sky situation), since the frequencies of these situations have high impact on electricity generation.</p><p>The study considers 11 high-resolution (0.11 deg) bias-corrected climate projections from the EURO-CORDEX ensemble with 5 Global Climate Models (GCMs) downscaled by 6 Regional Climate Models (RCMs).</p><p>Changes in extreme surface solar radiation frequencies show different regional patterns over Europe.</p><p>The study also includes a case study determining the changes in solar power generation induced by the extreme situations.</p><p> </p><p> </p><p>Jerez et al (2015): The impact of climate change on photovoltaic power generation in Europe, Nature Communications 6(1):10014, 10.1038/ncomms10014</p><p> </p>


Author(s):  
Jayoti Das ◽  
Cassandra DiRienzo ◽  
John Burbridge

Using cross-country data from 140 countries, this empirical study extends past research by examining the impact of trust on the level of e-government. The major empirical finding of this research shows that, after controlling for the level of economic development and other socio-economic factors, trust as measured by ethnic and religious diversity, is a significant factor affecting e-government usage.


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