جستجوی مقالات مرتبط با کلیدواژه « تولید برق » در نشریات گروه « اقتصاد »

By the reason of increasing environmental worries and also the limits of fossil fuel sources in the world, including Iran, all the developers and developing countries are changing their technology from fossil fuel sources to renewable energy sources.This research is reviewing the relation between producing electricity from types of renewable energy sources and GDP growth rate.According to this, first, existing of short-run and long-run relation between electricity production from types of renewable energy sources and GDP growth rate has been studied with serial correlation panel model (FMOLS - Fully modified least squares) and panel error correction model (ECM).Results show that in producing electricity from renewable and non-renewable energy, capital and labor variables have a positive and meaningful effect on GDP in short-run and long-run. For example, increasing 1% of electricity production by renewable energy, can raise GDP to 0/66% in the long - run. While electricity production of non-renewable energy can raise GDP to 0/45% in the long - run.Also results in estimating each energy source show that biomass, solar, waste and wind have a positive and meaningful effect on GDP. That means increasing 1% in the amount of biomass (solar, waste, wind and Geothermal) can increase GDP in order of mentioned to 0/01%, 0/72%, 0/33%, 0/11% and 0/61%. While hydroelectric source has elasticity with 0/11 that it has a positive effect on GDP but this is not a meaningful effect.

In recent decades, environmental problems caused by population growth and energy consumption have raised concerns about global warming. Therefore, this article has calculated the environmental cost with the aim of evaluating the environmental problems caused by the operation of power plants. This study aimed to calculate the environmental costs of generating electricity from different technologies. In this research, 5 thermal power plants in Tehran province were investigated. According to the emission factor of pollutants and also the specific production of each power plant in 1396, the amount of pollutants emitted from Tehran thermal power plants was calculated. Then, according to the emission factor of each polluting gas, heat rate of each power plant and the value of the damaged environment, the environmental cost of electricity generation from thermal power plants in Tehran province was calculated. The results showed that during one year of operation of thermal power plants in Tehran province, about 14 million tons of various pollutants go into the air and CO2 and C are the main pollutants. On average, the total external cost of electricity production from thermal power plants in Tehran province is equal to 8.82 cents per kilowatt hour, which should be included in the final cost of electricity production from these power plants.

This paper, as an applied research, seeks to measure the economies of scale, in Iran's electricity industry over the period 2007-2009 by separating gas, thermaland combined cycle power plants using the Translog Cost function. The results of this study confirmed the existence of economies of scale for all power plants in Iran's electricity industry. The average return of scale over this period was 1.04. The results of the Morishima elasticity indicate a substitution relationship between the inputs. Tthe values ​​of cross elasticities are positive and greater than one, indicating a strong substitution relationship between the inputs (energy, capital, and labor). Results also indicate that all partial Alan-Ozawa own elasticities are negative as expected.

This paper examines the effects of choice of different options for producing electricity (fossil fuels, nuclear and renewable) on the development of power plants in Iran and prioritizing amongst these options through use of cost benefit analysis and the LEAP modeling tool. This research is informed by multiple scenarios regarding the development of electricity generation activities and different share of each of these options in Iran's electricity production for the period 2015-2041. The study results indicate that the policy of optimal development of power plants is the most beneficial policy choice with the policy of developing renewable power plants (with the goal of 20% of the share of production) as the second best choice.

Most economic activities inevitably use natural resources and at the same time by releasing waste material which is a result of production activities, imposes pressures on the natural ecosystem. In this study it has been attempted to investigate the relations between carbon dioxide emissions and national income variables, trade liberalization, electricity generation, total consumption of petroleum products, natural gas consumption and domestic investment in the form of Environmental Kuznets Curve (EKC) hypothesis by applying time series data of Iran’s economy during the time period of (1979-2010) and by adopting Auto Regressive Distributed Lag (ARDL) method. This shows that environmental hypothesis and Kuznets Curve are partly approved in Iran. In order to accomplish this issue thoroughly, standard growth and perfect technology in production is required. The results of this study indicate that increase in national income, trade liberalization, electricity generation, total consumption of petroleum products,  natural gas consumption and domestic investment have a positive and significant effect on carbon dioxide emission. Moreover, it has been found that chi-income has a negative, however, more insignificant, compared to income, on environmental pollution