Showing 26 results for Energy
Maryam Hajipour Apourvari, Mehdi Nejati, Mojtaba Bahmani, Sayyed Abdolmajid Jalaee,
Volume 14, Issue 51 (5-2023)
Abstract
The increase in greenhouse gas emissions is one of the crises in today's world. Because it doubles global warming and environmental pollution. The increase in greenhouse gas emissions has encouraged many countries to substitute renewable energy instead of fossil fuel. The effective use of green energy such as renewable energy and nuclear energy is highly dependent on the technology used in the production of this type of energy. For this reason, the aim of this study is to investigate the impact of importing information and communication technology goods on renewable energy production in Iran. In this research, has been used the Computable general equilibrium model based on the social accounting matrix of 2014. The results show that in all scenarios, the production of fossil electricity in both peak and base times, as well as the production of ICT goods, will decrease because with the release of the import of these goods, foreign ICT goods will replace domestic ones and the production of these goods will be domestic. Also, the production of other sectors has increased and the largest increase is related to the gas sector. By applying the first scenario (10 to 100% change in tariff, without change in the productivity of production factors related to the production of renewable energies), with the further reduction of the tariff, the production of renewable electricity will also decrease in both peak and base times, but when The fact that the import of ICT goods is accompanied by a 3, 5 and 7 percent increase in the productivity of the production factors related to the production of renewable energies (scenarios two to four) will increase the production of renewable electricity in the base load. The production of renewable electricity at peak load has decreased in all scenarios and the results do not change with the increase in efficiency. By reducing the tariff on the import of ICT goods, the amount of CO2 emissions will decrease. Also, as the productivity of the production factors related to the sector of renewable energy production increases, CO2 decreases to a greater extent. It should be noted that with the reduction of the tariff on the import of ICT goods, the price of the goods has decreased in the investigated sectors. As a result, reduce the pollution caused by the consumption of fossil fuels and use them optimally.
Dr. Mahboubeh Jafari, Ms Fatemeh Rashidi, Dr. دهقان شبانی Dehghan Shabani,
Volume 14, Issue 54 (2-2024)
Abstract
Promoting electricity generation from renewable energy sources has emerged as a cornerstone of sustainable development strategies worldwide to mitigate greenhouse gas emissions and address the pressing challenges of climate change. This study aims to investigate the nonlinear relationship between the Productive Capacity Index (PCI) and renewable electricity generation across a sample of selected developing countries during the period 2000–2022. To this end, the dynamic panel threshold model proposed by Kremer et al. (2013) is utilized, as it enables the analysis of nonlinear interactions among variables in panel data while addressing potential endogeneity. Our findings reveal a non-linear relationship between PCI and renewable electricity generation. Importantly, the influence of PCI on the share of electricity generated from renewable sources intensifies beyond a specific threshold value. This implies that as PCI levels increase, their impact on clean energy production becomes more significant, emphasizing the importance of advancing productive capacities to accelerate the transition to renewable energy. Furthermore, the results underscore the critical role of several key factors in enhancing renewable electricity generation. Rising geopolitical risks, improved financial development, greater trade openness, and an increased share of gross fixed capital formation in GDP are identified as pivotal drivers that positively contribute to the expansion of renewable electricity generation. Conversely, weak environmental policies can significantly hinder this progress. Furthermore, the Dumitrescu and Hurlin (2012) panel causality test confirms the existence of a bidirectional causal relationship between the share of renewable electricity generation and the other explanatory variables. This study highlights the critical need to build and strengthen productive capacity to support the growth of renewable energy. The findings provide a valuable foundation for informed decision-making by policymakers and planners in developing nations.
Mr Reza Etesami, Mr Mostafa Lashkari, Dr Mohsen Madadi, Dr Reza Ashrafganjoei, Dr Mashallah Mashinchi,
Volume 14, Issue 54 (2-2024)
Abstract
Although many factors in economic growth and development are scientific, but the global impact and energy consumption have a prominent role in the economy according to the evidence. In the meantime, we should not ignore the consequences of environmental destruction. In the present study, the effect of uncertainty of globalization and energy consumption on CO2 gas emission has been investigated with the help of fuzzy regression model with symmetric and asymmetric coefficient for the time period of 1369-1400. According to the average scale of the phased vessel model, the three boundaries and the bottom are calculated for each of the investigated changes under different uncertainty conditions using the particle swarm algorithm. Examining the effect of the limits related to the uncertainty of globalization and energy consumption on the amount of CO2 gas emissions indicates that as the degree of membership approaches 0.1 to the degree of membership 0.9, first, the amount of CO2 gas emissions up to be Membership increased by 0.4 and then decreased in a downward trend of CO2 emissions. This impressive trend is also true for the middle and lower limits. From this, it can be stated that the effect of the uncertainty of energy consumption on the amount of CO2 emissions is similar to an inverted U. It is noteworthy that the trend of energy consumption compared to globalization increases the amount of CO2 emissions, so it can be said that the amount of CO2 emissions is not the result of the refugee hypothesis.
Dr Mohammad Hosein Karim, Dr Mohammad Sayadi, Mr Saeed Solgi, Mr Mohammadreza Ariafar,
Volume 14, Issue 54 (2-2024)
Abstract
The main purpose of this study is to investigate the effect of factors affecting the ecological footprint with an emphasis on the role of energy consumption intensity in Iran using the Vector Autoregression Model with Variable Parameters Over Time (TVP-VAR). The ecological footprint reflects the environmental constraints of communities and the extent to which the environment is destroyed by exceeding these limitations. Due to the increasing intensity of energy consumption, Iran is faced with a significant ecological footprint in its economic activities, which requires the root causes of the factors affecting it. Other research variables include the degree of urbanization, human development, financial development, trade openness, and GDP per capita in the period from 1990 to 2021. The results show that increasing the intensity of energy consumption causes a positive and significant increase over time on the ecological footprint. The effect of other research variables on the ecological footprint was also in accordance with theoretical expectations. These findings emphasize that the type and source of energy consumed, as well as the production processes, play an important role in this relationship. Also, the analyses show that environmental sustainability decreases with increasing energy consumption and the ecological footprint of
Mr Mojtaba Khani, Dr Ali Asghar Esmailnia Ketabi, Dr Ghodratollah Emamverdi, Dr Hooshang Momeni,
Volume 15, Issue 56 (8-2024)
Abstract
Study and modeling for appropriate planning and policy-making in the energy sector to ensure energy security (security of supply for consumers of crude oil and natural gas;security of demand for exporting economic enterprises) and consequently ensuring maximum intergenerational benefits is of great importance. Iran is a producer and exporter of oil and gas; and in such countries, the economy generally relies on oil and gas revenues. Naturally, it is necessary to maximize the profit from oil and gas revenues through planning for optimal production from oil and gas fields as a necessity. In this study, prioritizing the optimal solutions for allocating natural gas to various sectors including construction, industry (petrochemicals), transportation (in the form of compressed natural gas), power generation, export, injection into oil wells to increase recovery, relying on modeling the production chain, supply, natural gas injection in the oil field, and the added value from the injection, has been investigated by LEAP software, taking into account real and operational constraints, taking into account the South Pars gas source
Mrs Shadi Alizadeh, Dr Parvaneh Salatin, Dr Fatemeh Zandi, Dr Shahriar Nasabian,
Volume 15, Issue 57 (11-2024)
Abstract
Food security, as an indicator of macroeconomic stability, is the fundamental foundation of countries' economic security and one of the most important prerequisites for sustainable development.
On the other hand, food production and distribution are energy-intensive, and energy is essential for achieving food security.
In this regard, the main objective of this study is to examine the impact of energy security on food security in a selected group of Middle Eastern countries. The results using spatial econometrics in the period 2000-2023 showed that access to electricity as an indicator of energy security has a positive and significant impact on food security in the selected group of Middle Eastern countries. With a one percent increase in access to electricity, on average, assuming other conditions are constant, food security increased by 0.1384 units in the selected group of Middle Eastern countries. The direct and indirect effects of energy are also positive, meaning that increased access to electricity has not only improved food security in the selected group of Middle Eastern countries, but its spillover effects have also moderately improved food security in neighboring countries.
