APPLICATION OF RENEWABLE ENERGY SOURCES IN HOSPITALITY

Hotel Industry ◽

Energy Sources ◽

Energy Needs ◽

Tourism Sector ◽

Barriers And Opportunities ◽

The Cost

Renewable energy sources provide a perspective for reducing the harmful effects on the environment. They also help to reduce the cost of meeting energy needs after the return on investment in alternative energy. The tourism sector and in particular the hotel business use significant amounts of energy resources. Therefore, the purpose of this report is to present the nature of RES and the ways of application in the hotel industry. Barriers and opportunities for overcoming them are outlined. Some good practices of using alternative energy sources in the hotel business are presented.

PERSPECTIVES OF USING ALTERNATIVE ENERGY SOURCES IN UKRAINE IN THE CONTEXT OF INCREASING ENERGY EFFICIENCY IN EUROPE

Polonia University Scientific Journal ◽

10.23856/2705 ◽

2018 ◽

Vol 27 (2) ◽

pp. 44-51

Author(s):

Lidiya Shergina ◽

Alla Zhemba ◽

Nataliia Revutska ◽

Yulia Burma

Keyword(s):

Energy Efficiency ◽

Renewable Energy ◽

Alternative Energy ◽

Energy Sources ◽

Energy Efficiency Improvement ◽

Energy Independence ◽

Ecological Type ◽

Global Energy Consumption

The article is devoted to the issues of the functioning and development of energy in each country, caused mainly by the economic expediency of renewable energy and the requirements of energy independence. Also, the article examines the importance of replacing traditional fuels with alternative energy sources. The international experience of the countries in the field of efficient use of available natural resources of the fuel and energy complex and enhancement of the potential of the energy sector have been analyzed. A number of common characteristics and directions of energy efficiency improvement for European countries are highlighted. Alternative types of energy and measures necessary for their implementation have been offered. The potential resources of renewable energy sources have been analyzed. The article is devoted to the use of economical and ecological type of fuel - biofuel for Ukraine. On the basis of the analysis of the situation on the energy market, renewable energy is examine, which plays a compensatory role in global energy consumption in the conditions of growing exhaustion of non-renewable sources.

DEVELOPMENT OF SOLAR ENERGY IN UKRAINE IN THE CONTEXT OF THE TRANSITION TO THE CARBON-NEUTRAL ECONOMY

Vìsnik Sumsʹkogo deržavnogo unìversitetu ◽

10.21272/1817-9215.2021.1-24 ◽

2021 ◽

Vol 2021 (1) ◽

Author(s):

T. Pimonenko ◽

O. Lyulyov ◽

N. Letunovska ◽

O. Lytvynenko ◽

A. Nazarenko

Keyword(s):

Renewable Energy ◽

Solar Energy ◽

Alternative Energy ◽

Developed Countries ◽

Energy Sources ◽

Advantages And Disadvantages ◽

Research And Innovation ◽

Leading Position

The article aims to study current trends in the use of solar energy in Ukraine and the world as one of the main directions of decarbonization of the national economy. The authors systematize the prospects, advantages and disadvantages of the development of renewable energy sources. They conducted a comparative analysis of the "efficiency" of solar energy in some countries and Ukraine. The authors determined that the leading position in terms of the share of energy consumed from renewable sources is occupied by countries with developed economies due to the availability of effective motivational mechanisms. From the experience of EU countries, the authors concluded that renewable energy sources form a prerequisite for obtaining additional socio-economic and environmental effects. In the presence of favorable market conditions, renewable energy sources can increase the level of energy security in the country and its energy independence. The article analyzes the legislation of Ukraine on stimulating the development of alternative energy. The authors proposed two opposed ways of further developing solar energy in Ukraine. In particular, the country can implement methods of using alternative energy, which developed countries have successfully implemented. Another area involves increasing research and innovation in implementing, using, maintaining, and utilizing energy-generating devices from alternative energy sources. Despite the polarity of the proposed directions for further development of renewable energy, in both cases, the state policy on attracting investment and promoting the use of energy from alternative energy sources is crucial. In addition, the authors noted the benefits for society from the development and implementation of alternative energy sources. The scaling up and promotion of energy production technologies from alternative sources can reduce carbon emissions, which has been an urgent problem globally.

Modern Trends in the Development of Renewable Energy: the Experience of the EU and Leading Countries of the World

Mechanism of an economic regulation ◽

10.21272/mer.2020.89.09 ◽

2020 ◽

pp. 117-133

Author(s):

L.Hr. Melnyk ◽

O.N. Derykolenko ◽

Yu.O. Mazin ◽

O.I. Matsenko ◽

V.S. Piven

Keyword(s):

Sustainable Development ◽

Renewable Energy ◽

Global Economy ◽

Alternative Energy ◽

Power Plants ◽

Energy Sources ◽

The World ◽

The Eu

Energy security and independence is one of the key points in sustainable development. In modern conditions of rapid growth and development of technologies, more and more attention is paid to finding practical solutions for environmentally friendly and inexpensive energy production. For a long time, scientists from various fields of scientific activity around the world have been engaged in the development and use of alternative energy sources. The share of renewable energy sources in the generation of electricity around the world is growing steadily, which indicates an increase in the use of energy obtained from alternative sources, such as, for example, wind and sun. These trends testify to the desire of consumers to abandon the use of fossil energy sources and nuclear power plants as much as possible in order to ensure further sister development. Under the current conditions of the COVID-19 pandemic, the demand for electricity worldwide has decreased, however, as the study shows, this pandemic has not affected the development of renewable energy. The article analyzes modern trends in the development of renewable energy, taking into account the experience of the EU countries and leading countries of the world in this area. As a result, it was concluded that in modern conditions, to achieve sustainable development, transformation processes are needed in such an important area as energy. Various processes in the global economy, which contributed to the intensive development of alternative energy sources, served as a powerful impetus for such changes. Many countries have made significant progress in the development of renewable energy.

An Optimized Methodology for a Hybrid Photo-Voltaic and Energy Storage System Connected to a Low-Voltage Grid

Electronics ◽

10.3390/electronics8020176 ◽

2019 ◽

Vol 8 (2) ◽

pp. 176 ◽

Cited By ~ 12

Author(s):

Sarvar Hussain Nengroo ◽

Muhammad Umair Ali ◽

Amad Zafar ◽

Sadam Hussain ◽

Tahir Murtaza ◽

...

Keyword(s):

Cost Function ◽

Alternative Energy ◽

Low Voltage ◽

Storage System ◽

Energy Storage System ◽

Energy Sources ◽

Small Scale ◽

Energy Needs

The growing human population and the increasing energy needs have produced a serious energy crisis, which has stimulated researchers to look for alternative energy sources. The diffusion of small-scale renewable distributed generations (DG) with micro-grids can be a promising solution to meet the environmental obligations. The uncertainty and sporadic nature of renewable energy sources (RES) is the main obstacle to their use as autonomous energy sources. In order to overcome this, a storage system is required. This paper proposes an optimized strategy for a hybrid photovoltaic (PV) and battery storage system (BSS) connected to a low-voltage grid. In this study, a cost function is formulated to minimize the net cost of electricity purchased from the grid. The charging and discharging of the battery are operated optimally to minimize the defined cost function. Half-hourly electricity consumer load data and solar irradiance data collected from the United Kingdom (UK) for a whole year are utilized in the proposed methodology. Five cases are discussed for a comparative cost analysis of the electricity imported and exported. The proposed scheme provides a techno-economic analysis of the combination of a BSS with a low-voltage grid, benefitting from the feed-in tariff (FIT) scheme.

Factors of impact on the evolution of electricity markets from renewable energy sources: a comparison between Romania and Germany

Management & Marketing ◽

10.1515/mmcks-2015-0003 ◽

2015 ◽

Vol 10 (1) ◽

pp. 34-52 ◽

Cited By ~ 2

Author(s):

Roxana Clodnițchi ◽

Alexandra Cătălina Chinie

Keyword(s):

Renewable Energy ◽

Electricity Markets ◽

Alternative Energy ◽

Business Community ◽

Energy Sources ◽

Future Market ◽

The European Union ◽

Renewable Sources ◽

Alternative Energy Sources

Abstract When talking about the future of Europe we also think about alternative energy sources. It is up to national governments to decide how to encourage investments in this field in order to contribute to the 20-20-20 EU-objective. Until the network delivery cost for electricity produced from renewable sources will be comparable to the cost for energy from traditional sources ("grid parity"), the development of businesses and markets for electricity from renewable sources is going to be driven by support schemes. The state of the grids and the facility of grid-access constitute another two key factors influencing the development of this sector. Last but not least, the question of policy consistency is raised within the business community. Over the past years some support schemes have proved to be more effective than others, and grid conditions have also evolved. Policies supporting the development of renewables also changed at EU-level and at national levels. Based on statistics, scientific literature and the feedback of the business community, this study aims to analyse the development of renewable energy sectors in the European Union by comparing Germany’s and Romania’s experience. Also this study describes the current and expected future market situation in these countries relying on data gained from questionnaires and interviews with specialists in the renewable field.

Міжвідомчий тематичний науковий збірник Меліорація і водне господарство ◽

ALTERNATIVE ENERGY SOURCES FOR INCREASING ENERGY EFFICIENCY OF IRRIGATION SYSTEMS

10.31073/mivg201902-182 ◽

2019 ◽

pp. 105-112

Author(s):

O. O. Dekhtiar

Keyword(s):

Energy Efficiency ◽

Solar Energy ◽

Alternative Energy ◽

Electrical Power ◽

Energy Sources ◽

Irrigated Agriculture ◽

Irrigation Systems ◽

The Cost

Actuality of the problem. The article discusses the current level of use of alternative sources of electrical power in the world. The main areas of the global power development were determined, the statistical data of leading energy companies, analytical international organizations and financial institutions were analysed. For today, all civilized countries successfully switch to alternative energy sources: wind, solar energy, biofuels, etc. In addition, the use of solar energy is one of the most promising inexhaustible, renewable energy sources. The use of renewable energy sources replaces the traditional one, based on extractive technologies polluting the atmosphere with harmful emissions, and enhances the greenhouse effect, reduces the burden on the resource base and energy systems of countries and improves the environment. Sustainable development of the agricultural sector of the economy of Ukraine and, in particular, irrigated agriculture requires a reduction in energy dependence. In the structure of the cost of irrigation water, a significant share accounts for electrical power. That is why to increase the efficiency of irrigated agriculture, to ensure high and sustainable yields in the context of climate change, it is extremely important to reduce the cost of power consumption. The need to use alternative energy sources in the drainage complex of Ukraine as part of the implementation of the energy strategy of Ukraine, aimed at the transition to fficient use and consumption of energy resources is highlighted. The Institute of Water Problems and Land Reclamation deals with the investigations of measures and technologies to improve power efficiency to reduce the specific energy consumption for pumping water by pumping stations and to reduce the rate of power losses for water intake and water transportation by water supply paths. One of the effective measures to reduce power cost is the use of alternative energy sources, in particular solar energy. The economic potential of the measures for improving energy efficiency in irrigation systems wass estimated. Conclusions. The estimation showed that the use of modules of solar power plants installed above the surface of open irrigation canals will lead to lower energy costs in the face of a constant increase in tariffs, that is, it will help to increase the economic efficiency of irrigation, reduce the share of water resources in national energy consumption and have a positive environmental effect. The sale of surplus power to the energy system at “green” tariffs can significantly reduce the payback period for the modernization of the engineering infrastructure of irrigation systems.

BASIC PRECONDITIONS FOR THE DEVELOPMENT OF RENEWABLE ENERGY SOURCES FOR POWER SUPPLY OF AUTONOMUS OBJECTS IN THE CONDITIONS KYRGYZSTAN

The herald of KSUCTA n a N Isanov ◽

10.35803/1694-5298.2020.3.482-487 ◽

2020 ◽

pp. 482-487

Author(s):

S.M. Nasirdinova ◽

E. Akmatov ◽

E.A. Abilov

Keyword(s):

Renewable Energy ◽

Alternative Energy ◽

Energy Sources ◽

Environmental Damage ◽

Contributing Factors ◽

Organic Fuels ◽

Global Aspect ◽

Environmentally Friendly Method

The aim of this study was to observed to increasein the global aspect concentration of СО2. Heat balance contributing factors to change of the planet were separated. The results of the analysis, to show of reasonable statistical data on environmental damage from the use of organic fuels for energy production are also presented on the example of Kyrgyzstan. The ecological and climatic prerequisites contribute to the intensive introduction of alternative energy sources. The most important directions of development of renewable energy sources highlighted in the conditions of our mountain republic. The article shows that the development of the biogas industry - as one of the priority areas of alternative energy, for a constant increase in prices for fossil energy resources, would allow solving a number of important economic problems. Approach of the article is obvious, as it provides an alternative environmentally friendly method of energy generation.

"EСONOMY. FINANСES. MANAGEMENT: Topical issues of science and practical activity" ◽

ECONOMIC EFFICIENCY OF ENERGY AUTONOMY OF THE AIC DUE TO THE USE OF BIOFUELS

10.37128/2411-4413-2019-2-1 ◽

2019 ◽

pp. 7-19 ◽

Cited By ~ 1

Author(s):

Inna HONCHARUK ◽

Inna TOMASHUK

Keyword(s):

Renewable Energy ◽

Thermal Efficiency ◽

Rural Areas ◽

Energy Production ◽

Alternative Energy ◽

Energy Sources ◽

Agricultural Crops ◽

Live Stock

It has been substatiated in the article that renewable energy sources have recently become one of the important criteria for the sustainable development of rural areas. The emphasis is placed on the search for new and improved existing technologies for the production of alternative energy sources, expansion of their implementation areas. It is substantiated that the main reasons for such attention to the energy supply of rural territories are expected exhaustion of fossile fuels resourses, sharp increase in their prices, imperfections and low efficiency of their use technologies, harmful effects on the environment. It is shown that the situation of energy dependence can be changed by conducting the corresponding energy policy, improving the regulatory framework and attracting investment in the development of non-traditional and renewable energy sources. It is highlighted that Ukraine has sufficient opportunities to provide an adequate amount of biofuels, primarily through the use of biomass potential of agricultural crops and fast-growing energy crops. It is researched that in conditions of a complex socio-economic situation in Ukraine, a significant energy dependence on energy imports, the search for alternative energy sources is of particular relevance. It is estimated that Ukraine is among the dozens of countries - the largest consumers of energy resources, with a small share in the structure of the world's product. It is proved that energy saving today becomes one of the most important priorities of socio-economic development in the national and regional dimensions. The necessary condition for successful work in national and world agrarian markets is constant work on increasing the competitiveness of products, in particular, reducing its value by reducing the energy intensity of production. It is substantiated that agricultural producers are actively working on the issue of reducing energy consumption per unit of output. It is determined that the majority of these measures is aimed at increasing the productivity of agricultural crops, increasing productivity of the livestock sector, technical and technological re-equipment of the production process. It was emphasized that special attention should be paid to the branches of animal husbandry, because this industry is a serious source of alternative energy production. This applies not only the large live-stock producing agro-holdings but also the small households that operate in rural areas, for which live-stock production is subsidied by the state. Besides, it may become a source of energy supplies for their own needs as well. It was investigated that each year large livestock farms and poultry farms can receive environmentally friendly biofuels in an anaerobic way and significantly improve the quality of sewage. It is determined that thermal efficiency of cogeneration units of biogas production depends very much on equipment for electricity generation. For example, the use of gas-fired internal combustion engines has a thermal efficiency of 70% to 75%, while in the case of using gas turbines and boiler-wastes thermal efficiency can reach more than 90%. It is concluded that one of the ways to reduce the dependence on energy imports and to improve ecology in rural areas of Ukraine is to develop alternative energy generation in agro-industrial complex. Ukraine should create all opportunities for the development of innovative technologies for the implementation of renewable energy sources; to provide conditions for serial production and implementation of bioenergy facilities; to promote the formation of the equal competitive environment for different types of fuel. This will promote green energy production

Renewable Energy in Italy

Sustainable Systems and Energy Management at the Regional Level ◽

10.4018/978-1-61350-344-7.ch004 ◽

2011 ◽

pp. 68-86

Author(s):

Stefano Fanetti

Keyword(s):

Renewable Energy ◽

Alternative Energy ◽

Raw Materials ◽

Geographic Location ◽

Economic Incentives ◽

Energy Sources ◽

Regulatory Changes ◽

Oil And Natural Gas

Italy is a country where the energy supply depends largely on imported raw materials (such as oil and natural gas). The favorable geographic location could encourage the development of renewable energy sources; nevertheless, the growth of alternative energy sources is slow. What are the reasons? This question will be dealt in this chapter, considering three different aspects of the issue: the economic incentives for renewable energies, the problematic process of authorization of the facilities and the local communities’ opposition to new plants. Besides the analysis of these issues, the aim of this paper is to identify possible solutions, taking into account the relevant legislative and regulatory changes that, at national and Community level, have affected and are affecting the field of renewable energy.

Cooling and Heating with Ground Source Energy

Sustainable Practices ◽

10.4018/978-1-4666-4852-4.ch014 ◽

2013 ◽

pp. 261-278

Author(s):

Abdeen Mustafa Omer

Keyword(s):

Renewable Energy ◽

Alternative Energy ◽

Fossil Fuels ◽

Energy Sources ◽

Direct Expansion ◽

Operation Conditions ◽

Heating And Cooling ◽

Ground Source

In the recent attempts to stimulate alternative energy sources for heating and cooling of buildings, emphasis has been put on utilisation of the ambient energy from ground source and other renewable energy sources. Exploitation of renewable energy sources and particularly ground heat in buildings can significantly contribute towards reducing dependency on fossil fuels. This paper highlights the potential energy saving that could be achieved through use of ground energy source. It also focuses on the optimisation and improvement of the operation conditions of the heat cycles and performances of the DX GSHP. It is concluded that the direct expansion of GSHP are extendable to more comprehensive applications combined with the ground heat exchanger in foundation piles and the seasonal thermal energy storage from solar thermal collectors. This article discusses the principle of the ground source energy, varieties of GSHPs, and various developments.