VARTOTOJŲ ENERGIJOS TAUPYMO IR ŠILUMINIO KOMFORTO SUPRATIMO TYRIMAS DARNIUOSE PASTATUOSE / SURVEY ON OCCUPANTS KNOWLEDGE ON ENERGY CONSERVATION AND INDOOR CLIMATE IN SUSTAINABLE BUILDINGS

Renewable energy technologies are increasingly integrated into the modernization of multi-apartment buildings, however their benefits are rarely assessed from a complex environmental, energy and economic point of view. The article presents the results of the modernization of a particular apartment building in terms of the production and consumption of energy in a building, from the viewpoint of the life cycle. The benefits of the building’s energy modernization were assessed by introducing active (heat pumps and solar collectors for hot domestic water production) and passive modernization measures. The results show that the integration of heat pumps when electricity is produced from non-renewable energy sources according to the analyzed categories of life cycle analysis is not eco-friendly.

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A Quantitative Analysis of the Impact of Renewable Energy Deployment on Sustainability

Advances in Business Information Systems and Analytics - Value Sharing for Sustainable and Inclusive Development ◽

10.4018/978-1-5225-3147-0.ch014 ◽

2017 ◽

pp. 309-321

Author(s):

Nurcan Kilinc-Ata ◽

Banu Tanriover

Keyword(s):

Sustainable Development ◽

Renewable Energy ◽

Quantitative Analysis ◽

Conceptual Framework ◽

Renewable Energy Sources ◽

Point Of View ◽

The Sustainable Development ◽

Energy Technologies ◽

The Impact ◽

The Relationship

Renewable energy sources have a large potential to contribute the sustainable development as environmentally and socioeconomically. However, the existing literature includes theoretical framework in general and there is a lack of both comprehensive theoretical and empirical framework on the relationship between sustainable development and RE technologies. This paper aims to theoretically synthesise the literature on renewable energy technologies and sustainable development for Turkey, and then classify the results by broad categories. After all, the present paper uses conceptual and quantitative analysis, which reviews each concept with conceptual framework and evaluates data with quantitative method. From this point of view, this paper attempts to make a contribution by developing a conceptual framework which allows a wide-ranging analysis of the impact of renewable energy on sustainability and which can be empirically applied to classify these benefits in Turkey.

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Techno-Economic Analysis of Power-to-Heat Systems

E3S Web of Conferences ◽

10.1051/e3sconf/202123803003 ◽

2021 ◽

Vol 238 ◽

pp. 03003

Author(s):

Alberto Vannoni ◽

Alessandro Sorce ◽

Alberto Traverso ◽

Aristide Fausto Massardo

Keyword(s):

Large Scale ◽

Renewable Energy Sources ◽

Large Fraction ◽

District Heating ◽

Electrical Energy ◽

Energy System ◽

Heat Pumps ◽

Point Of View ◽

Thermal Source ◽

Economic Point

The heating and cooling sector, responsible for a large fraction of greenhouse emissions, may have a large scale impact on the energy system evolution contributing to smart industrial and domestic electrification; at the same time the recent increase of renewable energy sources installation, posing a threat in terms of grid stability, makes available a considerable amount of clean and cheap electrical energy during peak hours production. Power to heat technologies constitute a promising solution to face both these issues reducing the electric demand variability and decarbonizing the heat production. Large vapor compression heat pumps are a reliable technology able to compete, under the economic point of view, with the heat-only-boilers in order to serve district heating networks. Performance and economic profitability of a compression cycle is strongly dependent on available thermal source and the temperature of water delivered to the network. The present work explores and compares performance and economic indicators under different installation conditions, considering compression heat pumps employing four different fluids: a traditional HCF (R134a) and three natural fluids, ammonia (R717), butane (R600), and propane (R290), often preferred nowadays to HCFs due to the lower global warming potential.

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Comparative Environmental Life Cycle and Cost Assessment of Electric, Hybrid, and Conventional Vehicles in Lithuania

Sustainability ◽

10.3390/su13020957 ◽

2021 ◽

Vol 13 (2) ◽

pp. 957

Author(s):

Kamilė Petrauskienė ◽

Arvydas Galinis ◽

Daina Kliaugaitė ◽

Jolanta Dvarionienė

Keyword(s):

Life Cycle ◽

Combustion Engine ◽

Renewable Energy Sources ◽

Economic Benefits ◽

Life Cycles ◽

Point Of View ◽

Environmental Damage ◽

Economic Point ◽

Electricity Mix ◽

Cost Efficient

Electric mobility is promoted as a future transport option that has environmental and economic benefits and encourages sustainable urban transportation. The aim of this study is to reveal the changes in environmental and economic performance if we switched from internal combustion engine vehicles (ICEVs) to battery electric (BEV) or hybrid electric (HEV) vehicles. Therefore, this research presents a comparative environmental life cycle assessment (LCA) from the Cradle-to-Grave perspective of the vehicles and a Well-to-Wheel analysis of their fuel supply. Moreover, an LCA of a BEV was performed under diverse electricity mix scenarios, which are forecasted for 2015–2050 in Lithuania. From an economic point of view, a life cycle costing was conducted for the same vehicles to estimate the economic impacts over the vehicle life cycles under Lithuanian conditions. The results show that ICEV-petrol contributes the major environmental damage in all damage categories. BEVs with the electricity mix of 2020–2050 scenarios, which are composed mainly of renewable energy sources, provide the least environmental impact. The economic results reveal that BEV and ICEV-diesel are the most cost-efficient vehicles, with the total consumer life cycle costs of approximately 5% and 15% less than ICEV-petrol and HEV, respectively.

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A GIS Based Methodology in Renewable Energy Sources Sustainability

International Journal of Agricultural and Environmental Information Systems ◽

10.4018/ijaeis.2014070102 ◽

2014 ◽

Vol 5 (3) ◽

pp. 17-36 ◽

Cited By ~ 3

Author(s):

Emanuela Caiaffa ◽

Maurizio Pollino ◽

Alessandro Marucci

Keyword(s):

Renewable Energy ◽

Energy Supply ◽

Renewable Energy Sources ◽

Specific Area ◽

Point Of View ◽

Energy Sources ◽

Emissions Reduction ◽

Energy Increase ◽

Economic Point ◽

Support Decision Making

The exploitation of renewable energy sources has assumed a significant role, especially in an integrated vision of problems concerning energy policies, The 2009/28/EC Directive of the European Parliament and Council has indicated ambitious energy and climate change objectives for 2020 (according to the so-called “EU2020 Strategy”): greenhouse gas emissions reduction for 20%, renewable energy increase for 20%, improvement in energy efficiency for 20%. The aim of this paper is to present a GIS based methodology able to support decision-making in energy supply from Renewable Energy Sources (RES), focusing on two specific case-studies: Photovoltaic (PV) and Wind energy. To decide what type of renewable energy font is the best choice for a specific territory, it's important to know the local energetic situation, exploring the potential renewable energy sources available in that specific area, deciding what is the territory more compatible/sustainable among them, and if it's exploitable by suitable environmental and economic point of view. The methodology is largely directed towards the development of a tool to support siting decision.

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A GIS Based Methodology in Renewable Energy Sources Sustainability

Geospatial Research ◽

10.4018/978-1-4666-9845-1.ch093 ◽

2016 ◽

pp. 1944-1964

Author(s):

Emanuela Caiaffa ◽

Maurizio Pollino ◽

Alessandro Marucci

Keyword(s):

Climate Change ◽

Renewable Energy ◽

Energy Supply ◽

Renewable Energy Sources ◽

Specific Area ◽

Point Of View ◽

Energy Sources ◽

Emissions Reduction ◽

Economic Point ◽

Support Decision Making

The exploitation of renewable energy sources has assumed a significant role, especially in an integrated vision of problems concerning energy policies, The 2009/28/EC Directive of the European Parliament and Council has indicated ambitious energy and climate change objectives for 2020 (according to the so-called “EU2020 Strategy”): greenhouse gas emissions reduction for 20%, renewable energy increase for 20%, improvement in energy efficiency for 20%. The aim of this paper is to present a GIS based methodology able to support decision-making in energy supply from Renewable Energy Sources (RES), focusing on two specific case-studies: Photovoltaic (PV) and Wind energy. To decide what type of renewable energy font is the best choice for a specific territory, it's important to know the local energetic situation, exploring the potential renewable energy sources available in that specific area, deciding what is the territory more compatible/sustainable among them, and if it's exploitable by suitable environmental and economic point of view. The methodology is largely directed towards the development of a tool to support siting decision.

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Advancing Innovations in Renewable Energy Technologies as Alternatives to Fossil Fuel Use in the Middle East

10.1093/oso/9780198822080.003.0020 ◽

2018 ◽

Author(s):

Damilola S Olawuyi

Keyword(s):

Renewable Energy ◽

Middle East ◽

Renewable Energy Sources ◽

Low Carbon ◽

Electricity Grid ◽

Energy Technologies ◽

Gulf Countries ◽

Environmentally Responsible ◽

Legal Frameworks ◽

Legal Barriers

Despite increasing political emphasis across the Middle East on the need to transition to lower carbon, efficient, and environmentally responsible energy systems and economies, legal innovations required to drive such transitions have not been given detailed analysis and consideration. This chapter develops a profile of law and governance innovations required to integrate and balance electricity generated from renewable energy sources (RES-E) with extant electricity grid structures in the Middle East, especially Gulf countries. It discusses the absence of renewable energy laws, the lack of legal frameworks on public–private partnerships, lack of robust pricing and financing, and lack of dedicated RES-E institutional framework. These are the main legal barriers that must be addressed if current national visions of a low-carbon transition across the Middle East are to move from mere political aspirations to realization.

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The Energy System of an Ecovillage: Barriers and Enablers

Land ◽

10.3390/land10070682 ◽

2021 ◽

Vol 10 (7) ◽

pp. 682

Author(s):

Zita Szabó ◽

Viola Prohászka ◽

Ágnes Sallay

Keyword(s):

Renewable Energy ◽

Spatial Structure ◽

Energy Management ◽

Energy Production ◽

Renewable Energy Sources ◽

Energy System ◽

Energy Sources ◽

Energy Management System ◽

Production And Consumption ◽

Ecologically Sustainable

Nowadays, in the context of climate change, efficient energy management and increasing the share of renewable energy sources in the energy mix are helping to reduce greenhouse gases. In this research, we present the energy system and its management and the possibilities of its development through the example of an ecovillage. The basic goal of such a community is to be economically, socially, and ecologically sustainable, so the study of energy system of an ecovillage is especially justified. As the goal of this community is sustainability, potential technological and efficiency barriers to the use of renewable energy sources will also become visible. Our sample area is Visnyeszéplak ecovillage, where we examined the energy production and consumption habits and possibilities of the community with the help of interviews, literature, and map databases. By examining the spatial structure of the settlement, we examined the spatial structure of energy management. We formulated development proposals that can make the community’s energy management system more efficient.

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Comparison between Concentrated Solar Power and Gas-Based Generation in Terms of Economic and Flexibility-Related Aspects in Chile

Energies ◽

10.3390/en14041063 ◽

2021 ◽

Vol 14 (4) ◽

pp. 1063

Author(s):

Catalina Hernández Moris ◽

Maria Teresa Cerda Guevara ◽

Alois Salmon ◽

Alvaro Lorca

Keyword(s):

Natural Gas ◽

Solar Power ◽

Renewable Energy Sources ◽

Cost Effective ◽

Hybrid Plant ◽

Point Of View ◽

Concentrated Solar Power ◽

Economic Point ◽

Hybrid Plants ◽

Cost Of Energy

The energy sector in Chile demands a significant increase in renewable energy sources in the near future, and concentrated solar power (CSP) technologies are becoming increasingly competitive as compared to natural gas plants. Motivated by this, this paper presents a comparison between solar technologies such as hybrid plants and natural gas-based thermal technologies, as both technologies share several characteristics that are comparable and beneficial for the power grid. This comparison is made from an economic point of view using the Levelized Cost of Energy (LCOE) metric and in terms of the systemic benefits related to flexibility, which is very much required due to the current decarbonization scenario of Chile’s energy matrix. The results show that the LCOE of the four hybrid plant models studied is lower than the LCOE of the gas plant. A solar hybrid plant configuration composed of a photovoltaic and solar tower plant (STP) with 13 h of storage and without generation restrictions has an LCOE 53 USD/MWh, while the natural gas technology evaluated with an 85% plant factor and a variable fuel cost of 2.0 USD/MMBtu has an LCOE of 86 USD/MWh. Thus, solar hybrid plants under a particular set of conditions are shown to be more cost-effective than their closest competitor for the Chilean grid while still providing significant dispatchability and flexibility.

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Linking the spare parts management with the total costs of ownership: An agenda for future research

Journal of Industrial Engineering and Management ◽

10.3926/jiem.2083 ◽

2016 ◽

Vol 9 (5) ◽

pp. 991 ◽

Cited By ~ 4

Author(s):

Orlando Duran ◽

Irene Roda ◽

Marco Macchi

Keyword(s):

Life Cycle ◽

Conceptual Framework ◽

Spare Parts ◽

Point Of View ◽

Management Decision ◽

Future Research ◽

Extensive Literature ◽

Economic Point ◽

Spare Parts Management ◽

Physical Asset

Purpose: This manuscript explores the link between Spare Parts Management and Total Costs of Ownership or Life Cycle Costs (LCC).Design/methodology/approach: First, this work enumerates the different managerial decisions instances in spare parts management that are present during the life cycle of a physical asset. Second, we analyse how those decision instances could affect the TCO of a physical asset (from the economic point of view). Finally, we propose a conceptual framework for incorporating the spare parts management into a TCO model.Findings: The recent literature lacks discussions on the integration of spare parts management with the Total Costs of Ownership (TCO). Based in an extensive literature revision we can declare that the computation of costs related to spare parts management has been neglected by TCO models.Originality/value: The contribution of this paper is twofold. First, a literature review and identification of a series of spare parts management decision instances and its relationship with TCOs is presented in this paper. Second, a conceptual framework is suggested for linking those decisions instances to a total cost of ownership perspective. Some research questions and future research challenges are presented at the end of this work.

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