scholarly journals Análisis de las emisiones asociadas al sector energético en España

2020 ◽  
Vol 31 (1) ◽  
pp. 151
Author(s):  
Ángeles Cámara Sánchez ◽  
Mónica Flores García ◽  
Patricia D. Fuentes Saguar

The greenhouse gas emissions to the atmosphere are an economic and environmental problem. In this work we make a detailed study of the emissions from the branches of the Spanish energy sector. To this end, we have developed for the Spanish economy a Social Accounting Matrix (SAM) with Environmental Accounts, considering the six greenhouse gases that the Kyoto Protocol states. In this SAM, the energy sector appears disaggregated in eight sectors, including renewable branches, in order to distinguish the emissions of each type of energy. The analysis is performed using a linear multisector model applied to the SAM, which allows us to obtain the emissions, both direct and indirect, caused by each branch of the Spanish energy sector. Finally, we evaluate the impact in emissions caused by a shift in the household energy consumption towards renewable energy.

2021 ◽  
Vol 234 ◽  
pp. 00101
Author(s):  
Chama El Moummy ◽  
Yahya Salmi ◽  
Hindou Baddih

The Covid-19 pandemic is putting the world into some very hard times and the labor market is currently experiencing a very significant shock. In Morocco, the unemployment rate has increased since the beginning of the crisis. In the other hand, the world is engaged in a sustainable path and Morocco has started some years ago the deployment of renewable energy sources. After the 2008 crisis, the emergence of the concept of “Green New Deal” has demonstrated the impact of environmental measures and strategies included in many countries recovery plans, on boosting the economy. The objective of this article is to highlight the benefits of green economic recovery policies, on the employment in Morocco, especially for the renewable energy sector. The causality between renewable energy consumption and unemployment will be tested using the VAR model, the Johansen co-integration test, and the Granger causality test, for the period 1990-2017. Our results suggest that there is causality running from renewable energy consumption to unemployment. In fact, renewable energy sector can contribute to reduce the employment rate in Morocco. Investments in the sector can then be made to create jobs, particularly after the Covid-19 pandemic, that caused many jobs losses.


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ammar Ali Abd ◽  
Samah Zaki Naji ◽  
Ching Thian Tye ◽  
Mohd Roslee Othman

Abstract Liquefied petroleum gas (LPG) plays a major role in worldwide energy consumption as a clean source of energy with low greenhouse gases emission. LPG transportation is exhibited through networks of pipelines, maritime, and tracks. LPG transmission using pipeline is environmentally friendly owing to the low greenhouse gases emission and low energy requirements. This work is a comprehensive evaluation of transportation petroleum gas in liquid state and compressible liquid state concerning LPG density, temperature and pressure, flow velocity, and pump energy consumption under the impact of different ambient temperatures. Inevitably, the pipeline surface exchanges heat between LPG and surrounding soil owing to the temperature difference and change in elevation. To prevent phase change, it is important to pay attention for several parameters such as ambient temperature, thermal conductivity of pipeline materials, soil type, and change in elevation for safe, reliable, and economic transportation. Transporting LPG at high pressure requests smaller pipeline size and consumes less energy for pumps due to its higher density. Also, LPG transportation under moderate or low pressure is more likely exposed to phase change, thus more thermal insulation and pressure boosting stations required to maintain the phase envelope. The models developed in this work aim to advance the existing knowledge and serve as a guide for efficient design by underling the importance of the mentioned parameters.


Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2363
Author(s):  
Mihaela Simionescu ◽  
Carmen Beatrice Păuna ◽  
Mihaela-Daniela Vornicescu Niculescu

Considering the necessity of achieving economic development by keeping the quality of the environment, the aim of this paper is to study the impact of economic growth on GHG emissions in a sample of Central and Eastern European (CEE) countries (V4 countries, Bulgaria and Romania) in the period of 1996–2019. In the context of dynamic ARDL panel and environmental Kuznets curve (EKC), the relationship between GHG and GDP is N-shaped. A U-shaped relationship was obtained in the renewable Kuznets curve (RKC). Energy consumption, domestic credit to the private sector, and labor productivity contribute to pollution, while renewable energy consumption reduces the GHG emissions. However, more efforts are required for promoting renewable energy in the analyzed countries.


2020 ◽  
pp. 114-125
Author(s):  
Tetyana DERKACH ◽  
Denys CHEBANENKO

Introduction. The topic of renewable energy today is one of the most relevant and requires consideration from the point of view of all components of this process, namely economic, financial, environmental, technological, and others. The transition to renewable energy is already irreversible today since natural resources are depleted, fuel prices are the subject to significant fluctuations, and the stable growth of the national economy is ensured by energy security. The purpose. The purpose of the article is to analyze the volume of global energy consumption, to analyze the impact of the introduction of renewable energy sources on the development of the national economy, to ensure energy security with the depletion of hydrocarbon resources and a slight diversification of their suppliers. Results. Today the Ukrainian economy is the most energy-intensive. Unstable energy prices are a threat both to the global economy and to each country separately. Therefore, in the event of a decrease in the supply of traditional energy resources, the importing countries experience the greatest difficulties. The existing tendency in Ukraine to increase the consumption of traditional energy sources, combined with the absence of a targeted policy aimed at reducing the volume of environmental pollution, will lead to an increase in negative economic consequences. The advantage of renewable energy sources is their equal distribution throughout the country (with the exception of water resources). This feature leads to the formation of one of the main characteristics of power systems based on renewable energy sources, namely, their decentralization. It should be borne in mind that the world energy market is made up of state and non-state participants. Non-state participants are showing an upward trend. However, the state should have the greatest influence on the national energy sector. Renewable energy is an area that, in the Ukrainian context, depends on state support, namely economic and administrative incentives. The dynamics of the development of renewable energy should be combined with the balanced development of the fuel and energy sector in Ukraine. Conclusions. The process of development and transition to renewable energy needs a systematic approach. Both qualitative and quantitative approaches are needed to assess the transition to renewable energy. An effective strategy for the transition to the introduction of renewable energy technologies should be justified by economic feasibility. The transition from traditional energy to renewable sources should lead to energy security, which contributes to stable economic growth, political independence, and improving the quality of the environmental component.


2020 ◽  
Vol 12 (11) ◽  
pp. 4689 ◽  
Author(s):  
Shahriyar Mukhtarov ◽  
Jeyhun I. Mikayilov ◽  
Sugra Humbatova ◽  
Vugar Muradov

The study analyzes the impact of economic growth, carbon dioxide (CO2) emissions, and oil price on renewable energy consumption in Azerbaijan for the data spanning from 1992 to 2015, utilizing structural time series modeling approach. Estimation results reveal that there is a long-run positive and statistically significant effect of economic growth on renewable energy consumption and a negative impact of oil price in the case of Azerbaijan, for the studied period. The negative impact of oil price on renewable energy consumption can be seen as an indication of comfort brought by the environment of higher oil prices, which delays the transition from conventional energy sources to renewable energy consumption for the studied country case. Also, we find that the effect of CO2 on renewable energy consumption is negative but statistically insignificant. The results of this article might be beneficial for policymakers and support the current literature for further research for oil-rich developing countries.


Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6588
Author(s):  
Grzegorz Zimon ◽  
Dominik Zimon

Purchasing groups are multi-entity organisations that operate in practically every sector. Their greatest role is to improve the financial situation of small and medium enterprises (SMEs). In the case of enterprises operating in the sectors that are just developing, especially those belonging to SMEs, it is particularly difficult to obtain favourable financial results. In Poland, such sectors include, among others, renewable energy, which is slowly developing, but has not yet reached the size set in climate policy. The purpose of the paper is to present how functioning under group purchasing organisations (GPOs) affects the profitability of companies related to the renewable energy sector. For the example of the largest industry purchasing groups, the analysis showed that high profitability results were achieved by enterprises operating in them compared to entities operating independently in the market. In total, 71 enterprises operating in the sector related to the renewable energy sector in Poland were analysed. The enterprises were divided into units operating in the purchasing groups of 46 enterprises, and those that operate independently in the market of 25 enterprises. The research period covered the years 2016–2019. The analysis showed that the scale effect allowed companies to increase profits and had a positive effect on their financial liquidity. The research proved that in the case of commercial enterprises operating in the sector related to renewable energy, functioning within the industry purchasing group allowed high profitability and financial liquidity. There is a dependency that the liquidity increases with a growth in profitability.


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