A Case Study on Energy Saving and New Energy Services

2011 ◽  
Vol 301-303 ◽  
pp. 357-360
Author(s):  
Qing Bao Wei
Keyword(s):  
Global Warming ◽  
Renewable Energy ◽  
Energy Conservation ◽  
Energy Saving ◽  
Co2 Emissions ◽  
Co2 Emission ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
New Energy

Energy conservation or energy saving is one of the most important methods for reducing CO2 emissions, which is known to be associated with global warming. Although development of renewable energy sources such as solar or wind energy is necessary, we must first pay attention to the fact that enormous amounts of energy are consumed uselessly at present. Energy saving should therefore be one of the first problems to be tackled. It may not only bring reductions in CO2 emission, but also may lead to savings in expenditure on energy. This paper introduces some of the initiatives taking place in Japan aimed at energy conservation.

A Case Study on Energy Saving and New Energy Services

2012 ◽  
Vol 462 ◽  
pp. 327-330
Author(s):  
Ze Guo Qiu
Keyword(s):  
Global Warming ◽  
Renewable Energy ◽  
Energy Conservation ◽  
Energy Saving ◽  
Co2 Emissions ◽  
Co2 Emission ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
New Energy

Energy conservation or energy saving is one of the most important methods for reducing CO2 emissions, which is known to be associated with global warming. Although development of renewable energy sources such as solar or wind energy is necessary, we must first pay attention to the fact that enormous amounts of energy are consumed uselessly at present. Energy saving should therefore be one of the first problems to be tackled. It may not only bring reductions in CO2 emission, but also may lead to savings in expenditure on energy. This paper introduces some of the initiatives taking place in Japan aimed at energy conservation.

ENERGY CONSUMPTION IN HOTEL INDUSTRY – CASE STUDY IN OHRID

2007 ◽  
Vol 14 (2) ◽  
pp. 291-300
Author(s):  
Gordana Petrovska Reckoski ◽  
Risto Reckoska ◽  
Angela Vasileska
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Renewable Energy Sources ◽  
Hotel Industry ◽  
Energy Sources ◽  
The European Union ◽  
Development Environment ◽  
New Energy ◽  
Swot Analyses

Renewable energy is necessary for each industry functioning, also for hotel industry. It’s necessary for warming, lightening hotels, for kitchens functioning in hotels, for transport vehicles movement, for hotel pools, etc. In lack of classic energy sources, long period of time some work is done on finding new energy sources, besides oil and coal, water and wind. Nowadays, solar energy is very popular, which is already supplied, bio-energy, wind energy, water energy, geothermal and gas energy, steam, and still a work is done on permanent finding of new renewable energy sources (fuel cell resources, ocean/wave resources). In this paper, overworked data is shown, brought by Ohrid hotels and SWOT analyses has been done of energy consumption in hotel industry in Ohrid, with proposals for modernization, efficiency, aiming to modern tourism development, environment protection, human health protection. In this way, basic demands for entering the European Union will be satisfied and legislative harmonization in Republic of Macedonia with other EU members is going to be realized.

scholarly journals The Great Drama, Global Warming and Its Mechanism

2020 ◽  
Vol 7 (2) ◽  
pp. 29
Author(s):  
Jan-Erik Lane
Keyword(s):  
Earth Sciences ◽  
Global Warming ◽  
Renewable Energy ◽  
Co2 Emissions ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
The Earth ◽  
Coal Power

Well-known professor Johan Rockström at Stockholm University claims that we are in control of things, now that the Earth Sciences have proven the biological  limits of our existing civilisations. But we do not know or have not begun the necessary large global adjustments towards a sustainable Planet Earth. The failure of the UN COP framework is blatant stating the ends but not the means of reducing significantly CO2 emissions. All major countries plan for much more energy in coming decades treating renewable energy sources as merely compliment to fossil fuels,  not substitutes. To accomplish the Paris Accord objevties (COP 21), coal power should be phased out.

scholarly journals Uncertainty analysis for industries investing in energy equipment and renewable energy sources

2021 ◽  
Vol 19 ◽  
pp. 126-130
Author(s):  
E.M. Urbano ◽  
◽  
A.D. Gonzalez-Abreu ◽  
K. Kampouropoulos ◽  
L. Romeral
Keyword(s):  
Renewable Energy ◽  
Uncertainty Analysis ◽  
Deterministic Model ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Optimization Approach ◽  
New Energy ◽  
Optimization Methodology ◽  
Energy Equipment

This paper studies the optimal design and operation of new energy equipment including renewable energy sources for prosumer industries. In order to augment the interest of industries in performing energy actions, the economic parameters of the investment are analysed and the risk related to it considering the uncertainty in energy markets is evaluated. A two-stage optimization approach is proposed considering the whole lifetime of the energy equipment and an uncertainty analysis performed through the evaluation of the deterministic model under Latin Hypercube Samples of uncertain parameters. A case study based on a real industry is presented, whose results expose the robustness of the optimization methodology and the acceptable risk of investing in renewable energy sources and energy equipment for prosumer purposes.

ANALYSIS OF THE PROSPECTS OF ENERGY-ECONOMIC ASSESSMENT OF AGRICULTURAL TECHNOLOGIES

2021 ◽  
pp. 46-52
Author(s):  
YURIY А. SHIROKOV ◽  
Keyword(s):  
Renewable Energy ◽  
Energy Saving ◽  
Renewable Energy Sources ◽  
Economic Assessment ◽  
Assessment Method ◽  
Energy Sources ◽  
Agricultural Technologies ◽  
Economic Support ◽  
New Energy ◽  
Technology And Economy

The paper shows that a comprehensive intersectoral approach is needed to address the issues of systematic management of energy saving in agriculture and to justify rational measures of economic support for the state-initiated introduction of energy-saving technologies, machines, and projects. Such requirements are met by the energy-economic (bioenergy) assessment method. The energy-economic assessment consists in comparing the costs of cultivating plants or servicing animals in single units of measurement with the production results and is mainly of national strategic importance. On the basis of such assessment, economic guidelines and incentives for the introduction of new energy-effi cient technologies, machines and projects, including the use of renewable energy sources, can be developed. The author presents an approach to improving the methodology of energy-economic assessment of agricultural technologies and projects when using renewable energy sources in technological processes. It is proved that in order to ensure the reliability of the energy-economic assessment associated with permanent technological and organizational changes and the digitalization of technology and economy, it is necessary to continue research to improve the assessment methodology, as well as clarify and regularly update energy equivalents.

Global warming and renewable energy sources for sustainable development: A case study in Turkey

2008 ◽  
Vol 12 (2) ◽  
pp. 372-396 ◽  
Author(s):  
Selçuk Bilgen ◽  
Sedat Keleş ◽  
Abdullah Kaygusuz ◽  
Ahmet Sarı ◽  
Kamil Kaygusuz
Keyword(s):  
Sustainable Development ◽  
Global Warming ◽  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Energy Sources

scholarly journals Assessment of the social component of the effectiveness of the transition to alternative energy sources

2019 ◽  
Keyword(s):  
Renewable Energy ◽  
Energy Conservation ◽  
Energy Saving ◽  
Economic Activity ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Social Effect ◽  
Alternative Energy Sources ◽  
The Social

Energy conservation is a key focus of the green economy. The correct energy conservation policy of a country can significantly increase its competitiveness of the national economy. The aim of the article is a meaningful definition of the energy saving process, a qualitative and quantitative assessment of the social component of the effectiveness of the transition to alternative energy sources. Objective: study of one of the promising measures of energy conservation policy - attracting renewable energy sources in economic activity. General scientific methods are used: system analysis - to determine the features of the development of energy saving in Ukraine, comparative analysis to formalize the cause-effect relationships of the studied factors of the influence of renewable energy sources on the country's economic activity. It is determined that energy saving should be understood as the process of ensuring the rational use of energy resources in economic activity with minimizing environmental damage through the implementation of a set of measures (regulatory, scientific, practical, financial, economic, organizational, technical, informational, educational and innovative). The classification of measures in the field of energy conservation is systematized. In order to stimulate the development of "green" energy in the regions, the need is substantiated, together with the calculation of economic and environmental effects, to assess the social effect of the introduction of alternative energy. Conclusions: the proposed approach for calculating the social effect of the use of renewable energy sources is based on qualitative and quantitative characteristics that affect social changes in society during the transition to renewable energy sources. The proposed formula for assessing the social effect is of significant economic importance and can be used to justify the effectiveness of the development of renewable energy.

scholarly journals Assessing Uncertainties of Life-Cycle CO2 Emissions Using Hydrogen Energy for Power Generation

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6943
Author(s):  
Akito Ozawa ◽  
Yuki Kudoh
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Life Cycle ◽  
Co2 Emissions ◽  
Co2 Emission ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Energy Sources ◽  
Hydrogen Energy ◽  
Low Carbon

Hydrogen and its energy carriers, such as liquid hydrogen (LH2), methylcyclohexane (MCH), and ammonia (NH3), are essential components of low-carbon energy systems. To utilize hydrogen energy, the complete environmental merits of its supply chain should be evaluated. To understand the expected environmental benefit under the uncertainty of hydrogen technology development, we conducted life-cycle inventory analysis and calculated CO2 emissions and their uncertainties attributed to the entire supply chain of hydrogen and NH3 power generation (co-firing and mono-firing) in Japan. Hydrogen was assumed to be produced from overseas renewable energy sources with LH2/MCH as the carrier, and NH3 from natural gas or renewable energy sources. The Japanese life-cycle inventory database was used to calculate emissions. Monte Carlo simulations were performed to evaluate emission uncertainty and mitigation factors using hydrogen energy. For LH2, CO2 emission uncertainty during hydrogen liquefaction can be reduced by using low-carbon fuel. For MCH, CO2 emissions were not significantly affected by power consumption of overseas processes; however, it can be reduced by implementing low-carbon fuel and waste-heat utilization during MCH dehydrogenation. Low-carbon NH3 production processes significantly affected power generation, whereas carbon capture and storage during NH3 production showed the greatest reduction in CO2 emission. In conclusion, reducing CO2 emissions during the production of hydrogen and NH3 is key to realize low-carbon hydrogen energy systems.

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