scholarly journals STRUCTURAL AND DYNAMIC APPROACH TO ANALYZING THE ENERGY INTENSITY OF RUSSIAN REGIONS' GRP OVER THE PERIOD 2005-2014

Author(s):  
Bogachkova L. Yu. ◽  
Khurshudyan Sh. G.

Today, the Russian system of accounting energy consumption indicators is being actively developed, the special attention being paid to collecting verified statistical data and methodological grounding of energy efficiency monitoring in the regions. The present paper outlines the approach to estimating structural factor's effect on energy intensity of Russian regions. The approach consists in grouping Russian regions by types of their energy-economic development; studying dynamic characteristics of each group; estimating the intensity of GRP structural shifts; and analyzing statistical interdependence of structural shifts' intensity and energy intensity dynamics across the regions. The paper deals with the first stage of implementation of Energy Strategy of Russia for the Period up to 2030 (over 2005-2014 years). The dynamics of energy efficiency has been investigated using the case of electricity consumption. The results obtained in the present research show the slight impact of structural factor on energy intensity dynamics in the Russian regions, which complies with the earlier obtained results. Thus, over the period 2005-2014 the energy intensity dynamics in the Russian regions could be substantially affected by economic growth, technology modifications and other factors requiring detailed studies.

Author(s):  
Анатолий Петрович Дзюба

Цель статьи - представить разработанную автором методику ранжирования регионов России по уровню общего вклада в реализацию комплекса мер в энергосбережение и повышение энергетической эффективности экономики России. Автором проведено эмпирическое исследование промежуточных результатов реализации мер по повышению энергетической эффективности в России за период 2010-2019 гг. Выполнено исследование направления и динамики изменения потребления электроэнергии за исследуемый период на уровне федеральных округов и регионов России. Научная новизна заключается в выполнении ранжирования регионов, либо территориальных образований по уровню общего вклада каждого региона на основе разработанных показателей. Такое ранжирование выполнено и относительно роста спроса и общего вклада регионов в электропотребление на уровне общего экономического пространства. На основе полученных результатов автором проведена группировка регионов с целью предоставления рекомендаций для каждой региональной группы, направленных на повышение энергетической эффективности в масштабах экономики России. The article is devoted to the description of the methodology developed by the author for ranking Russian regions according to the level of total contribution to the implementation of a set of measures in energy conservation and increasing the energy efficiency of the Russian economy. The author conducts an empirical study of the intermediate results of the implementation of measures to increase energy efficiency in Russia for the period 2010-2019. The study analyzes the direction and dynamics of changes in electricity consumption for the period under study at the level of federal districts and regions of Russia. On the basis of the ranking results obtained, the author has grouped the regions with recommendations for each regional group according to the need to improve energy efficiency on the scale of the Russian economy.


Author(s):  
A. L. Kashtanov ◽  
◽  
A. A. Komyakov ◽  
M. M. Nikiforov ◽  
◽  
...  

The article reflects the issues of forecasting the target indicators of energy efficiency on the example of JSC «Russian Railways». The approaches selected for assessing the quantitative values of the key performance indicators of the Russian Railways holding in the development of the Energy Strategy for the period up to 2020 and for the future up to 2030 are considered. The accepted methods are conventionally classified into four groups, including: a heuristic method based on the analysis of time trends, an indirect method based on known values of indicators and using mathematical models. The method of forecasting the specific consumption of electricity and diesel fuel for train traction and the energy intensity of the production activity of JSC «Russian Railways» is considered in detail. Regression models have been developed that characterize the dependence of the specific fuel and energy consumption on such indicators as the volume of transportation work, the average mass of the train, and the share of freight work in the total work. In order to assess the accuracy of the obtained forecast values of the indicators included in the energy strategy of JSC «Russian Railways», they were verified by the results of 2017-2019. The results obtained allow us to speak about the sufficient effectiveness of the approaches considered in the article to predict the KPI of JSC «Russian Railways». The error in forecasting the main indicator of energy efficiency of JSC «Russian Railways» - the energy intensity of production activities - was 0,06 %.


2014 ◽  
Vol 6 (4) ◽  
pp. 427-431
Author(s):  
Juozas Bielskus ◽  
Giedrius Šiupšinskas ◽  
Kęstutis Čiuprinskas

The analysis of scientific literature shows that the actual efficiency of the adsorption cooling device has not been properly examined. This article presents experimental study on energy efficiency of the adsorption cooling device (max capacity 8 kW) produced at the Laboratory of Building Energy and Microclimate Systems of Vilnius Gediminas Technical University. The study has focused on the measurement of the actual temperatures and flow rate of a heating source, chilled water, a supply of cooled water to the chiller, electricity consumption for circulation pumps and chiller fans. The article presents collected statistical data and shows the dependency of chilled water and heat source temperatures evaluating the coefficients of performance (COP) and electrical efficiency (EER). The received results show higher electrical efficiency of the examined device than that of a conventional compressor system. Mokslinės literatūros analizė parodė, kad realiai veikiančių įrenginių faktinis efektyvumas nėra gerai žinomas, ypač įrengus šaltojo klimato zonos šalyse. Todėl šiame darbe atliekamas eksperimentinis VGTU Pastato energetinių ir mikroklimato sistemų laboratorijoje (PEMS) įrengto SORTECH AG gamintojo ACS 08 adsorbcinio (maksimali vėsinimo galia – 8 kW) įrenginio efektyvumo tyrimas. Matuojamos faktinės šilumnešio, atšaldomo vandens, tiekiamo į aušyklę, aušinimo skysčio temperatūros su debitais bei aušyklės ir cirkuliacinių siurblių elektros sąnaudos. Atliekama sukauptų duomenų statistinė analizė ir pateikiama atšaldomo vandens bei šilumnešio temperatūrų priklausomybė, vertinant energijos transformavimo COP bei elektrinį (EER) tiriamojo įrenginio koeficientus. Tyrimo rezultatai rodo didesnį nei tradicinės kompresorinės sistemos tiriamojo įrenginio elektrinį efektyvumą.


Author(s):  
А. П. Дзюба

Статья посвящена оценке результатов реализации мер по энергосбережению и повышению энергетической эффективности экономики России, производимых за период последнего десятилетия с 2010 по 2019 годы. Автором проводится эмпирический анализ данных потребления электрической энергии в России за период с 1990 по 2019 годы, с углубленным анализом характеристик изменения потребления электроэнергии с 2010 по 2019 годы, по отношению к уровню базового 2017 года. Автором проводится анализ фактических и плановых данных показателей электроемкости и энергоёмкости ВВП России за период с 2010 по 2019 годы, с выявлением значительного отставания фактических характеристик уровня эффективности от запланированных в рамках нормативных актов, утвержденных Правительством РФ. В материалах проводится анализ динамики и направлений фактического расхода электроэнергии и тепловой энергии на единицу отдельных видов произведенной продукции и услуг в России за период 2012-2019 годов. Проведен анализ доли затрат на конечное потребление энергетических ресурсов экономикой России в ВВП в текущих ценах за период 2012-2015 годов, а также распределение затрат на энергоресурсы по их видам и структуре основных потребителей. The article is devoted to the assessment of the results of the implementation of measures to save energy and increase the energy efficiency of the Russian economy produced over the period of the last decade from 2010 to 2019. The author conducts an empirical analysis of data on electricity consumption in Russia for the period from 1990 to 2019, with an in-depth analysis of the characteristics of changes in electricity consumption from 2010 to 2019, in relation to the level of the base year 2017. The author analyzes the actual and planned data on the indicators of electrical intensity and energy intensity of Russia’s GDP for the period from 2010 to 2019, revealing a significant lag in the actual characteristics of the level of efficiency from those planned within the framework of regulations approved by the Government of the Russian Federation. The materials analyze the dynamics and directions of the actual consumption of electricity and heat energy per unit of certain types of products and services produced in Russia for the period 2012-2019. The analysis of the share of costs for the final consumption of energy resources by the Russian economy in GDP in current prices for the period 2012-2015, as well as the distribution of costs for energy resources by their types and structure of main consumers.


2021 ◽  
Vol 13 (13) ◽  
pp. 7251
Author(s):  
Mushk Bughio ◽  
Muhammad Shoaib Khan ◽  
Waqas Ahmed Mahar ◽  
Thorsten Schuetze

Electric appliances for cooling and lighting are responsible for most of the increase in electricity consumption in Karachi, Pakistan. This study aims to investigate the impact of passive energy efficiency measures (PEEMs) on the potential reduction of indoor temperature and cooling energy demand of an architectural campus building (ACB) in Karachi, Pakistan. PEEMs focus on the building envelope’s design and construction, which is a key factor of influence on a building’s cooling energy demand. The existing architectural campus building was modeled using the building information modeling (BIM) software Autodesk Revit. Data related to the electricity consumption for cooling, building masses, occupancy conditions, utility bills, energy use intensity, as well as space types, were collected and analyzed to develop a virtual ACB model. The utility bill data were used to calibrate the DesignBuilder and EnergyPlus base case models of the existing ACB. The cooling energy demand was compared with different alternative building envelope compositions applied as PEEMs in the renovation of the existing exemplary ACB. Finally, cooling energy demand reduction potentials and the related potential electricity demand savings were determined. The quantification of the cooling energy demand facilitates the definition of the building’s electricity consumption benchmarks for cooling with specific technologies.


2021 ◽  
Vol 13 (4) ◽  
pp. 1605
Author(s):  
Shuangjie Li ◽  
Hongyu Diao ◽  
Liming Wang ◽  
Chunqi Li

Energy efficiency is crucial to the 2030 UN Sustainable Development Goals (SDGs), but its widely measured indicator, energy intensity, is still insufficient. For this reason, in 2006, total factor energy efficiency (TFEE) was proposed with capital, labor, and energy as inputs and GDP as the desirable output. The later TFEE approach further incorporated pollution as the undesirable output. However, it is problematic to regard GDP (the total value of final products) as the desirable output, because GDP does not include the intermediate consumption, which accounts for a large part of the production activities and may even be larger than the value of GDP. GDP is more suitable for measuring distribution, while VO (value of output) is more appropriate for sustainable production analysis. Therefore, we propose a VO TFEE approach that takes VO as the desirable output instead and correspondingly incorporates the other intermediate materials and services except energy into inputs. Finally, the empirical analysis of the textile industry of EU member states during 2011–2017 indicates that the VO TFEE approach is more stable and convergent in measuring energy efficiency, and is more suitable for helping policymakers achieve the SDGs of energy saving, emissions reduction, and sustainable economic development.


2021 ◽  
Vol 11 (13) ◽  
pp. 6005
Author(s):  
Daniel Villanueva ◽  
Moisés Cordeiro-Costas ◽  
Andrés E. Feijóo-Lorenzo ◽  
Antonio Fernández-Otero ◽  
Edelmiro Miguez-García

The aim of this paper is to shed light on the question regarding whether the integration of an electric battery as a part of a domestic installation may increase its energy efficiency in comparison with a conventional case. When a battery is included in such an installation, two types of electrical conversion must be considered, i.e., AC/DC and DC/AC, and hence the corresponding losses due to these converters must not be forgotten when performing the analysis. The efficiency of the whole system can be increased if one of the mentioned converters is avoided or simply when its dimensioning is reduced. Possible ways to achieve this goal can be: to use electric vehicles as DC suppliers, the use of as many DC home devices as possible, and LED lighting or charging devices based on renewables. With all this in mind, several scenarios are proposed here in order to have a look at all possibilities concerning AC and DC powering. With the aim of checking these scenarios using real data, a case study is analyzed by operating with electricity consumption mean values.


2020 ◽  
Vol 14 (1) ◽  
pp. 108-125 ◽  
Author(s):  
Salman Haider ◽  
Javed Ahmad Bhat

Purpose Because of growing energy consumption and increasing absolute CO2 emissions, the recent calibrations about the environmental sustainability across the globe have mandated to achieve the minimal energy consumption through employing energy-efficient technology. This study aims to estimate linkage between simple measure of energy efficiency indicator that is reciprocal of energy intensity and total factor productivity (TFP) in case of Indian paper industry for 21 major states. In addition, the study incorporates the other control variables like labour productivity, capital utilization and structure of paper industry to scrutinize their likely impact on energy efficiency performance of the industry. Design/methodology/approach To derive the plausible estimates of TFP, the study applies the much celebrated Levinsohn and Petrin (2003) methodology. Using the regional level data for the period 2001-2013, the study employs instrumental variable-generalized method of moments (GMM-IV) technique to examine the nature of relationship among the variables involved in the analysis. Findings An elementary examination of energy intensity shows that not all states are equally energy intensive. States like Goa, Rajasthan, Jharkhand and Tamil Nadu are less energy intensive, whereas Uttar Pradesh, Kerala, Chhattisgarh, Assam and Punjab are most energy-intensive states on the basis of their state averages over the whole study period. The results estimated through GMM-IV show that increasing level of TFP is associated with lower level of energy per unit of output. Along this better skills and capacity utilization are also found to have positive impact on energy efficiency performance of industry. However, the potential heterogeneity within the structure of industry itself is found responsible for its higher energy intensity. Practical implications States should ensure and undertake substantial investment projects in the research and development of energy-efficient technology and that targeted allocations could be reinforced for more fruitful results. Factors aiming at improving the labour productivity should be given extra emphasis together with capital deepening and widening, needed for energy conservation and environmental sustainability. Given the dependence of structure of paper industry on the multitude of factors like regional inequality, economic growth, industrial structure and the resource endowment together with the issues of fragmented sizes, poor infrastructure and availability and affordability of raw materials etc., states should actively promote the coordination and cooperation among themselves to reap the benefits of technological advancements through technological spill overs. In addition, owing to their respective state autonomies, state governments should set their own energy saving targets by taking into account the respective potentials and opportunities for the different industries. Despite the requirement of energy-efficient innovations, however, the cons of technological advancements and the legal frameworks on the employment structure and distributional status should be taken care of before their adoption and execution. Originality/value To the best of our knowledge, this is the first study that empirically examines the linkage between energy efficiency and TFP in case of Indian paper industry. The application of improved methods like Levinsohn and Petrin (2003) to derive the TFP measure and the use of GMM-IV to account for potential econometric problems like that of endogeneity will again add to the novelty of study.


Author(s):  
I. V. Shestakov ◽  
N. R. Safin

The paper introduces the results of mathematical simulation of the operating modes of an asynchronous motor when powered by a sinusoidal voltage source and a width-modulated voltage pulse source. The study shows the possibilities of increasing the energy efficiency of an asynchronous electric drive. Findings of research show the feasibility of studying the switching of the motor power source from a pulse width-modulated voltage to a sinusoidal voltage source in the nominal operating mode in order to increase the energy efficiency of the electric drive


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