scholarly journals Energy Efficiency in the Supply Chains of the Aluminium Industry: The Cases of Five Products Made in Sweden

Energies ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 245 ◽  
Author(s):  
Joakim Haraldsson ◽  
Maria Johansson
Keyword(s):  
Energy Efficiency ◽  
Focus Group ◽  
Supply Chains ◽  
Global Economy ◽  
Energy Use ◽  
Improve Energy Efficiency ◽  
Increase Energy Efficiency ◽  
Energy Efficiency Improvement ◽  
Group Interviews ◽  
Made In

Improved energy efficiency in supply chains can reduce both environmental impact and lifecycle costs, and thus becomes a competitive advantage in the work towards a sustainable global economy. Viewing the supply chain as a system provides the holistic perspective needed to avoid sub-optimal energy use. This article studies measures relating to technology and management that can increase energy efficiency in the supply chains of five aluminium products made in Sweden. Additionally, energy efficiency potentials related to the flows of material, energy, and knowledge between the actors in the supply chains are studied. Empirical data was collected using focus group interviews and one focus group per product was completed. The results show that there are several areas for potential energy efficiency improvement; for example, product design, communication and collaboration, transportation, and reduced material waste. Demands from other actors that can have direct or indirect effects on energy use in the supply chains were identified. Despite the fact that companies can save money through improved energy efficiency, demands from customers and the authorities would provide the additional incentives needed for companies to work harder to improve energy efficiency.

scholarly journals Serbian energy efficiency problems

2014 ◽  
Vol 18 (3) ◽  
pp. 683-694 ◽  
Author(s):  
Dusan Gvozdenac ◽  
Miroslav Kljajic ◽  
Branka Gvozdenac-Urosevic
Keyword(s):  
Energy Efficiency ◽  
Energy Policy ◽  
Renewable Energy Sources ◽  
Policy Instruments ◽  
Analysis Method ◽  
Increase Energy Efficiency ◽  
Energy Efficiency Policy ◽  
Energy Efficiency Improvement ◽  
The Eu ◽  
Made In

The aim of this paper is to analyze and explore the most suitable energy policy instruments for energy efficiency improvement in Serbia. The analysis has been carried out with a focus on energy indicators for Serbia and EU27. It encompasses a period of twenty-two years and is directed towards the consideration of amendments that need to be made in the National Energy Efficiency Policy. Despite constant attempts to improve and increase energy efficiency and to expand utilization of renewable energy sources, it seems that accomplished results are still very modest. The comparative analysis of the situation in the area of energy efficiency in Serbia and in the EU takes into consideration deficiencies in the energy policy in Serbia and proposed measures for overcoming them. The Multiple Criteria Decision Analysis method is used for analyzing the extent of key influences on success in the implementation of energy efficiency policy in Serbia and also for the interpretation of results. The analysis shows that identified energy policy instruments are such that the success in their implementation will depend on a reformed institutional approach. This method can be applied in any other country.

scholarly journals A multi-stakeholder perspective on opportunities and challenges for energy efficiency improvement in university buildings

2021 ◽  
Vol 246 ◽  
pp. 05006
Author(s):  
Gireesh Nair ◽  
Shoaib Azizi ◽  
Thomas Olofsson
Keyword(s):  
Energy Efficiency ◽  
Indoor Environment ◽  
Information Technologies ◽  
Energy Use ◽  
Efficiency Improvement ◽  
Improve Energy Efficiency ◽  
Energy Efficiency Improvement ◽  
Stakeholder Perspective ◽  
University Buildings ◽  
Multi Stakeholder

University buildings are relatively energy-intensive. In Sweden, universities usually operate in rented buildings. In this study, interviews were carried out among three categories of stakeholders in a Swedish university to understand their perceptions of energy use and challenges to improve energy efficiency. As per most interviewees, the university’s top management and Akademiska Hus, which owns the buildings, have the main responsibility to reduce the buildings’ energy and carbon footprint. The heads of departments raised the concern on the non-availability of energy data to take actions to reduce energy use. The use of sensors and information technologies to monitor space use, energy use, and indoor environment are attractive to different stakeholders. The implications of the interview results are discussed.

scholarly journals EFFICIENCY INCREASE IN THE ENERGY SAVING PROGRAM IN RUSSIA

2021 ◽  
pp. 133-143
Author(s):  
Анатолий Петрович Дзюба
Keyword(s):  
Energy Efficiency ◽  
Electricity Consumption ◽  
Russian Regions ◽  
Total Contribution ◽  
Improve Energy Efficiency ◽  
Increase Energy Efficiency ◽  
Russian Economy ◽  
Regional Group ◽  
Efficiency Increase ◽  
Federal Districts

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.

scholarly journals Real-Time Decision Making in First Mile and Last Mile Logistics: How Smart Scheduling Affects Energy Efficiency of Hyperconnected Supply Chain Solutions

Energies ◽  
2018 ◽  
Vol 11 (7) ◽  
pp. 1833 ◽  
Author(s):  
Tamás Bányai
Keyword(s):  
Energy Efficiency ◽  
Supply Chain ◽  
Energy Consumption ◽  
Real Time ◽  
Real Time Scheduling ◽  
Improve Energy Efficiency ◽  
Increase Energy Efficiency ◽  
Last Mile ◽  
Time Scheduling ◽  
Last Mile Delivery

Energy efficiency and environmental issues have been largely neglected in logistics. In a traditional supply chain, the objective of improving energy efficiency is targeted at the level of single parts of the value making chain. Industry 4.0 technologies make it possible to build hyperconnected logistic solutions, where the objective of decreasing energy consumption and economic footprint is targeted at the global level. The problems of energy efficiency are especially relevant in first mile and last mile delivery logistics, where deliveries are composed of individual orders and each order must be picked up and delivered at different locations. Within the frame of this paper, the author describes a real-time scheduling optimization model focusing on energy efficiency of the operation. After a systematic literature review, this paper introduces a mathematical model of last mile delivery problems including scheduling and assignment problems. The objective of the model is to determine the optimal assignment and scheduling for each order so as to minimize energy consumption, which allows to improve energy efficiency. Next, a black hole optimization-based heuristic is described, whose performance is validated with different benchmark functions. The scenario analysis validates the model and evaluates its performance to increase energy efficiency in last mile logistics.

scholarly journals Potential and Impacts of Cogeneration in Tropical Climate Countries: Ecuador as a Case Study

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5254
Author(s):  
Manuel Raul Pelaez-Samaniego ◽  
Juan L. Espinoza ◽  
José Jara-Alvear ◽  
Pablo Arias-Reyes ◽  
Fernando Maldonado-Arias ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Fossil Fuels ◽  
Energy Use ◽  
National Level ◽  
Ghg Emissions ◽  
Industrial Sector ◽  
Increase Energy Efficiency ◽  
High Dependency ◽  
Generation Capacity ◽  
Tropical Climates

High dependency on fossil fuels, low energy efficiency, poor diversification of energy sources, and a low rate of access to electricity are challenges that need to be solved in many developing countries to make their energy systems more sustainable. Cogeneration has been identified as a key strategy for increasing energy generation capacity, reducing greenhouse gas (GHG) emissions, and improving energy efficiency in industry, one of the most energy-demanding sectors worldwide. However, more studies are necessary to define approaches for implementing cogeneration, particularly in countries with tropical climates (such as Ecuador). In Ecuador, the National Plan of Energy Efficiency includes cogeneration as one of the four routes for making energy use more sustainable in the industrial sector. The objective of this paper is two-fold: (1) to identify the potential of cogeneration in the Ecuadorian industry, and (2) to show the positive impacts of cogeneration on power generation capacity, GHG emissions reduction, energy efficiency, and the economy of the country. The study uses methodologies from works in specific types of industrial processes and puts them together to evaluate the potential and analyze the impacts of cogeneration at national level. The potential of cogeneration in Ecuador is ~600 MWel, which is 12% of Ecuador’s electricity generation capacity. This potential could save ~18.6 × 106 L/month of oil-derived fuels, avoiding up to 576,800 tCO2/year, and creating around 2600 direct jobs. Cogeneration could increase energy efficiency in the Ecuadorian industry by up to 40%.

scholarly journals Modern theoretical and practical measures to improve the energy efficiency of industrial buildings in Zaporizhzhia

2021 ◽  
pp. 21-29
Author(s):  
D.S. Ivanenko ◽  
O.S. Ishchenko ◽  
O.M. Nazarenko
Keyword(s):  
Energy Efficiency ◽  
Practical Experience ◽  
Energy Resources ◽  
Rational Use ◽  
Improve Energy Efficiency ◽  
Industrial Enterprises ◽  
Energy Efficiency Improvement ◽  
Industrial Buildings ◽  
Cost Of Energy ◽  
The Difference

Abstract. Problem statement. The problem of improving the energy efficiency of industry is today one of the most pressing and is being developed in several modern areas. One of the leading directions in this field is the development of the principles of sustainable architecture. The purpose of the article is to identify the main measures for the rational use of thermal resources, reducing energy consumption at industrial enterprises, which leads to a significant impact on the development of the country in the European direction. The use of foreign approaches to form a holistic methodology for assessing energy efficiency. Analysis of publications. The study of not only foreign, but also domestic modern theoretical developments and practical experience will allow to achieve the goal − to increase an energy efficiency of industrial buildings in Zaporizhzhia region. There are examples among European countries, which largely meet modern requirements, including energy efficiency in industry. Results of the study. The effectiveness of measures to improve energy efficiency is defined as the difference in the cost of energy consumed after their implementation. The first step in obtaining the results of energy efficiency is an energy survey or energy audit. Upon completion of the above operations, the customer must be provided with a report on the inspection of the facility, which includes recommendations (measures) to reduce the consumption of fuel and energy resources and their feasibility study, as well as the energy passport of the facility. Conclusions. The paper identifies the main aspects that need to be considered when drawing up an energy saving program at an industrial enterprise, which includes measures to improve energy efficiency. Also identified the main means of improving the energy efficiency of industry in Zaporizhzhia. Keywords: energy efficiency of buildings; energy efficiency improvement; rational use of energy resources; industrial construction; reconstruction of industrial enterprises; heat saving

scholarly journals TRIGENERATION AS A WAY OF ENERGY EFFICIENCY IMPROVEMENT REVIEW ARTICLE

2014 ◽  
pp. 82-87
Author(s):  
T. V. Pantsyrnaya ◽  
V. A. Parabin ◽  
A. V. Dyakov
Keyword(s):  
Energy Efficiency ◽  
Scientific Literature ◽  
Energy Systems ◽  
Review Article ◽  
Efficiency Improvement ◽  
Shopping Centers ◽  
Increase Energy Efficiency ◽  
Power Stations ◽  
Energy Efficiency Improvement ◽  
Key Aspects

The overview of current scientific literature on one of the key aspects of the development of the energy sector is presented, it is the increase of the efficiency of energy systems. The ability of cogeneration and trigeneration systems to increase energy efficiency of power stations, supermarkets, shopping centers, airports, etc. was demonstrated. In addition, it was shown that these systems have a high potential for reducing greenhouse gas emissions. The examples of polygeneration systems and ways to optimize them by improving techno-economic parameters were also demonstrated.

scholarly journals PECULIARITIES OF DETERMINATION OF ECONOMIC INDICATORS OF EXECUTIBILITY OF IMPLEMENTATION OF MEASURES TO INCREASE ENERGY EFFICIENCY

2021 ◽  
Author(s):  
D. Derevyanko ◽  
A. Kolodiazhna ◽  
Y. Nуtsun
Keyword(s):  
Energy Efficiency ◽  
Net Present Value ◽  
General Scheme ◽  
International Energy Agency ◽  
Economic Indicators ◽  
Energy Prices ◽  
Planning Period ◽  
Energy Agency ◽  
Improve Energy Efficiency ◽  
Increase Energy Efficiency

The work is devoted to the analysis of the peculiarities of determining the economic indicators of the feasibility of implementing measures to improve energy efficiency. In contrast to energy saving, which aims to reduce the consumption of energy resources, energy efficiency is a matter of appropriate energy consumption. That is, the use of less energy for the same level of supply of buildings or industries. The topic is relevant, because now energy prices are rising every year. At the same time, the International Energy Agency estimates an increase in total resource needs by 25% by 2040.  To achieve this goal, standard measures aimed at improving the energy efficiency of buildings, the effects of the implementation of these measures, a number of economic indicators, including PP, ARR, NPV, PI, BCR, SIR, MARR, IRR and DPP, were analyzed, evaluated and grouped. The focus was on the dynamic group of indicators due to the fact that their calculation involves the use of a discounting procedure. The general scheme of all dynamic indicators is the same and is based on forecasting costs and revenues for the planning period. The indicators of this group take into account changes in the value of money over time, which is neglected by the indicators of the static group. The most popular indicators are the calculation of net present value (NPV) and the definition of profitability index (PI). This work can be used to solve the problem of low energy efficiency and insufficient funding for the modernization of the building

scholarly journals Light Shelf Development Using Folding Technology and Photovoltaic Modules to Increase Energy Efficiency in Building

Buildings ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 81
Author(s):  
Heangwoo Lee ◽  
Sowon Han ◽  
Janghoo Seo
Keyword(s):  
Energy Efficiency ◽  
Energy Use ◽  
Building Energy ◽  
Photovoltaic Module ◽  
Generation Efficiency ◽  
Photovoltaic Modules ◽  
Increase Energy Efficiency

Some recent research in the area of light shelves has been focused on applying photovoltaic modules to light shelves to save building energy. However, due to the modules installed on the light shelf reflectors, most such light shelves have failed to improve both daylighting and generation efficiency. This study proposes a folding technology to improve light shelves’ daylighting and generation efficiency that uses photovoltaic modules and validates their performance using a testbed. The major obtained findings are as follows: (1) The proposed folding technology has a structure in which reflectors and photovoltaic modules fold alternately by modularizing the light shelf. The reflector and photovoltaic modules are controlled by adjusting the degree of folding. (2) Because light shelf angles for improving daylighting and generation differed depending on the application of the photovoltaic module, the optimal light shelf specifications differed. (3) Compared to previous light shelf technologies, the light shelf with folding technology and a photovoltaic module reduced energy use by 31.3% to 38.2%. This demonstrates the efficacy of the proposed system. (4) Applying a photovoltaic module can lower the indoor uniformity ratio, which means that the daylighting performance of the light shelf is degraded due to the reduction of the area occupied by the reflector.

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