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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: orcid Iryna Sotnyk;
    Iryna Sotnyk
    ORCID
    Harvested from ORCID Public Data File

    Iryna Sotnyk in OpenAIRE
    orcid Tetiana Kurbatova;
    Tetiana Kurbatova
    ORCID
    Harvested from ORCID Public Data File

    Tetiana Kurbatova in OpenAIRE
    orcid bw Yaroslavna Romaniuk;
    Yaroslavna Romaniuk
    ORCID
    Derived by OpenAIRE algorithms or harvested from 3rd party repositories

    Yaroslavna Romaniuk in OpenAIRE
    orcid Olha Prokopenko;
    Olha Prokopenko
    ORCID
    Harvested from ORCID Public Data File

    Olha Prokopenko in OpenAIRE
    +4 Authors

    The growth of renewable energy facilities worldwide creates new challenges for sustainable regional development. Unregulated investment flows in the green energy sector cause disparities in the deployment of various renewable energy technologies, worsen the ability to balance national energy systems, etc. This article is the first comprehensive study that offers a methodology for multifactor modeling of investment flows in regional green energy deployment considering the priorities of national, regional, and local authorities within the sustainable development concept. The proposed methodological approaches help (1) determine the types of renewable energy technologies for priority development in the region, (2) select specific green energy projects to receive budgetary support on territories, and (3) form the optimal mechanism for budget financing distribution on regional development of renewable energy technologies. The modeling factors include natural conditions and resource base of a territory; its economically feasible renewable energy potential; the territory’s energy needs; installed capacity and electricity generation of new green energy facilities; power plants’ life cycle duration, the investment amount, etc. The model approbation on the example of household solar and wind power plants in the Sumy region, Ukraine, has shown the need to significantly increase financial support for renewable energy projects, primarily due to the region’s energy deficit. Calculations revealed that the interest-free loan share for both technologies should be 2.843 and 2.844 times higher than the basic share of lending (20%). For the 30-kW solar power plant project, the indicator should be 64.67% instead of the basic one of 56.86% for home solar energy facilities. Thus, the methodological approaches presented in the article are new tools that allow territorial authorities to purposefully shape and manage investment flows in the renewable energy sector to ensure sustainable energy development of regions worldwide.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Energiesarrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Energies
    Article . 2022 . Peer-reviewed
    License: CC BY
    Data sources: Crossref
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Energies
    Article . 2022
    Data sources: DOAJ
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Energiesarrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      Energies
      Article . 2022 . Peer-reviewed
      License: CC BY
      Data sources: Crossref
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      Energies
      Article . 2022
      Data sources: DOAJ
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: orcid Iryna Sotnyk;
    Iryna Sotnyk
    ORCID
    Harvested from ORCID Public Data File

    Iryna Sotnyk in OpenAIRE
    orcid bw Mykola Sotnyk;
    Mykola Sotnyk
    ORCID
    Derived by OpenAIRE algorithms or harvested from 3rd party repositories

    Mykola Sotnyk in OpenAIRE
    orcid bw Tetiana Kurbatova;
    Tetiana Kurbatova
    ORCID
    Derived by OpenAIRE algorithms or harvested from 3rd party repositories

    Tetiana Kurbatova in OpenAIRE
    orcid Olha Prokopenko;
    Olha Prokopenko
    ORCID
    Harvested from ORCID Public Data File

    Olha Prokopenko in OpenAIRE
    +1 Authors

    The heating processes of private residential buildings demand substantial fuel and energy resources and contribute to global warming, necessitating the transition to energy-efficient and eco-friendly heating. This study aims to develop a methodological approach for selecting cost-optimal strategies for household heating systems by assessing the environmental impacts and cost-effectiveness of available options of fossil fuels and renewable energy used in the residential sector during a heating season while ensuring homes’ greening and energy efficiency. The research extends the existing methodology by considering climatic zones and their ambient air temperature fluctuations during a heating season, household energy efficiency, various energy carriers used for heating, household running and capital costs for heating, multi-zone electricity tariffs, and prospects of heating automation, aiding policymakers in shaping residential heating choices. Tested on a typical Ukrainian household, the approach contributes to sectoral policy improvement by creating energy-efficient and decarbonization strategies for housing stock, with potential application in other countries. The results show that the most cost-optimal options for heating in Ukraine are firewood and natural gas use under the current energy policy. Based on the findings, the study suggests recommendations within Ukraine’s regional context and carbon neutrality goals. They provide a transition to renewables (wood pellets and heat pumps) by developing a market infrastructure for servicing boiler equipment and logistics for biofuel supply, state economic support to local boiler equipment manufacturers, and partial reimbursement of investments in pellet boilers and heat pumps for households, electricity tariff adjustments, etc.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Polityka Energetyczn...arrow_drop_down
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    Polityka Energetyczna – Energy Policy Journal
    Article . 2024 . Peer-reviewed
    License: CC BY SA
    Data sources: Crossref
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Polityka Energetyczn...arrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      Polityka Energetyczna – Energy Policy Journal
      Article . 2024 . Peer-reviewed
      License: CC BY SA
      Data sources: Crossref
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: orcid bw I Wayan Edi Arsawan;
    I Wayan Edi Arsawan
    ORCID
    Derived by OpenAIRE algorithms or harvested from 3rd party repositories

    I Wayan Edi Arsawan in OpenAIRE
    orcid bw Olha Prokopenko;
    Olha Prokopenko
    ORCID
    Derived by OpenAIRE algorithms or harvested from 3rd party repositories

    Olha Prokopenko in OpenAIRE
    orcid bw Viktor Koval;
    Viktor Koval
    ORCID
    Derived by OpenAIRE algorithms or harvested from 3rd party repositories

    Viktor Koval in OpenAIRE
    orcid Yiğit Kazançoğlu;
    Yiğit Kazançoğlu
    ORCID
    Harvested from ORCID Public Data File

    Yiğit Kazançoğlu in OpenAIRE
    +2 Authors

    Sustainability concerns are becoming pressing in the hospitality sector, which requires incorporating the green innovation approach to yield excellent business performance and preserve the environment. However, the drivers that underpin green innovation have yet to be comprehensively established. This study aims to examine the drivers of green innovation and investigate top management support as a moderator. Data were sourced from 121 eco-friendly hotels, which comprised 276 respondents analyzed with SEM-PLS. The results demonstrated that embedding environmental strategies significantly affected top management support and green innovation. In addition, the results notably denoted that top management support mediated and moderated the relationship between environmental strategies and green innovation. This paper also discusses the theoretical and managerial implications in further detail.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ E3S Web of Conferenc...arrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    E3S Web of Conferences
    Article . 2023 . Peer-reviewed
    License: CC BY
    Data sources: Crossref
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    E3S Web of Conferences
    Article . 2023
    Data sources: DOAJ
    https://dx.doi.org/10.60692/aw...
    Other literature type . 2023
    Data sources: Datacite
    https://dx.doi.org/10.60692/6z...
    Other literature type . 2023
    Data sources: Datacite
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ E3S Web of Conferenc...arrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      E3S Web of Conferences
      Article . 2023 . Peer-reviewed
      License: CC BY
      Data sources: Crossref
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      E3S Web of Conferences
      Article . 2023
      Data sources: DOAJ
      https://dx.doi.org/10.60692/aw...
      Other literature type . 2023
      Data sources: Datacite
      https://dx.doi.org/10.60692/6z...
      Other literature type . 2023
      Data sources: Datacite
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: orcid Galyna Trypolska;
    Galyna Trypolska
    ORCID
    Harvested from ORCID Public Data File

    Galyna Trypolska in OpenAIRE
    orcid Tetiana Kurbatova;
    Tetiana Kurbatova
    ORCID
    Harvested from ORCID Public Data File

    Tetiana Kurbatova in OpenAIRE
    orcid Olha Prokopenko;
    Olha Prokopenko
    ORCID
    Harvested from ORCID Public Data File

    Olha Prokopenko in OpenAIRE
    orcid Honorata Howaniec;
    Honorata Howaniec
    ORCID
    Harvested from ORCID Public Data File

    Honorata Howaniec in OpenAIRE
    +1 Authors

    The Ukrainian renewable energy sector has demonstrated a significant increase in its renewable power capacity, especially for solar and wind power plants. Decommissioning the end-of-life equipment in Ukraine has not yet taken place, but it is only a matter of time. With this in mind, this paper assesses the quantities and the market values of the materials that could potentially be recovered from used solar and wind power plants, and it estimates the impact of their decommissioning on employment in Ukraine. It has been estimated that approximately 8.9 GW of solar power plants, and 3.6 GW of wind power plants, will be decommissioned from 2044 to 2059, and that the cost of the raw materials recovered could reach EUR 421.4 million and EUR 124.6 million in 2021 prices, respectively, compared to the decommissioning costs of EUR 240.1 million and EUR 49.1 million, respectively. Decommissioning renewable power plants will require the creation of new jobs, including 11.6 thousand in the solar industry, and 2.8 thousand in the wind sector. It is essential to amend the legislation in Ukraine, particularly Directive 2012/19/EU, to introduce the principle of the extended producer responsibility to ensure the efficient recycling of renewable power plant end-of-life equipment in Ukraine in the future.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Energiesarrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Energies
    Article . 2022 . Peer-reviewed
    License: CC BY
    Data sources: Crossref
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Energies
    Article
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    Energies
    Article . 2022
    Data sources: DOAJ
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Energiesarrow_drop_down
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      Energies
      Article . 2022 . Peer-reviewed
      License: CC BY
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      Energies
      Article
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      Energies
      Article . 2022
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Bohuslava Mihalčová; Antonín Korauš; orcid Olha Prokopenko;
    Olha Prokopenko
    ORCID
    Harvested from ORCID Public Data File

    Olha Prokopenko in OpenAIRE
    Jozefína Hvastová; +3 Authors

    Globally, millions of people suffer from poverty. This paper discusses the problem of poverty especially in relation to food waste. The prevention of food waste can also contribute to global poverty reduction, and the reduction of food waste is a tool for sustainable growth and competitiveness. At present, the number of people at risk of poverty and the amount of food waste are increasing at unsustainable rates. An integrated and efficient tool for the management of food, energy, and water (FEW) resources to improve FEW security via an interdisciplinary approach could help address several of the most significant global challenges, such as climate change, and economic, environmental, and social security. The aim of this study was to examine the relationship between the existence of poverty and the treatment of food for sustainable growth. The analysis focused on the EU countries and the main data source was the Eurostat database. Households generally create the largest proportion of food waste. Pareto analysis shows that in households, food and non-alcoholic beverages are among the first group of expenses, and in the EU countries they represent approximately 12% of the total expenses. Food and non-alcoholic beverages are a stable, unavoidable, and non-negligible element of total expenses. Paradoxically, enormous amounts of food are wasted. A relatively weak inversely proportional relationship between the amount of food waste per capita and the proportion of the population at risk of poverty among the total population of EU countries was identified through correlational analysis. A very weak relationship between the share of the population at risk of poverty in the total population and the amount of food waste per capita, excluding the population at risk of poverty, was also found.

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    Energies
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    Energies
    Article . 2021
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      Energies
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    Authors: orcid Olha Prokopenko;
    Olha Prokopenko
    ORCID
    Harvested from ORCID Public Data File

    Olha Prokopenko in OpenAIRE
    orcid Stanislav Vasylishyn;
    Stanislav Vasylishyn
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    Stanislav Vasylishyn in OpenAIRE
    orcid bw Volodymyr Matviienko;
    Volodymyr Matviienko
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    Volodymyr Matviienko in OpenAIRE
    orcid Nataliia Matviienko;
    Nataliia Matviienko
    ORCID
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    Nataliia Matviienko in OpenAIRE
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    This paper examines the economic and financial advantages of improving international collaboration between Ukraine and Poland in the development of alternative energy projects. It conducts a thorough evaluation of existing and forthcoming renewable energy generation technologies, using expert, Delphi, and methods based on statistics to identify the most promising and universally applicable solutions. The calculation of the payback period for small-scale green energy projects pays particular attention to the actual duration of the period in the case of small business ventures. The findings are summarized with a vision for the future Ukrainian-Polish cooperation in the scope of green energy cooperation and specific instruments and processes that could contribute to the success of the collaboration.The article outlines the potential approach that involves the isolation of the cooperation between Ukraine and Poland in green energy relying on the creation of investment and venture funds, public support for the manufacturing of a renewable energy component, and the establishment of non-volatile industrial complexes. Additionally, measures such as independent small alternative power plants and the initiatives for the development of the Ukrainian-Polish joint network of alternative energy are mentioned.The current war between Ukraine and Russia has drawn attention to the crucial need for energy security and diversification, making Ukraine-Poland collaboration on green energy projects all the more important. Ukraine may minimize its reliance on the Russian energy supply by focusing on renewable energy programs, while Poland can invest in sustainable energy to boost regional stability and economic progress. The article points out that the continuation and advancement of green energy initiatives require international cooperation. The paper offers detailed guidance on how the financial, economic, and technological opportunities and relations between Ukraine and Poland may be enhanced.

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    Authors: Tetiana Kurbatova; orcid Iryna Sotnyk;
    Iryna Sotnyk
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    Iryna Sotnyk in OpenAIRE
    Tetiana Perederii; orcid Olha Prokopenko;
    Olha Prokopenko
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    Olha Prokopenko in OpenAIRE
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    On-grid hybrid wind–solar systems are one of the best sustainable solutions for developing distributed generation, as they can provide a stable and reliable electricity supply, effectively using the potential of the two most common renewable energy resources. In Ukraine, promoting the development of on-grid hybrid wind–solar power plants takes on particular importance under conditions of electricity shortages caused by the large-scale destruction of the energy infrastructure due to the ongoing hostilities. This article examines the economic efficiency of installing such power plants in the residential sector of Ukraine under different state support schemes. This study was conducted for on-grid hybrid wind–solar systems of various configurations and installed capacities with different equity and debt capital proportions involved in implementing investment projects. This study’s results highlight the economic efficiency of the feed-in tariff compared to the net billing for households investing in such facilities and emphasize the need to improve policy measures to increase their investment attractiveness.

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    Energies
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    Authors: orcid Olha Prokopenko;
    Olha Prokopenko
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    Olha Prokopenko in OpenAIRE
    orcid Tetiana Kurbatova;
    Tetiana Kurbatova
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    Tetiana Kurbatova in OpenAIRE
    orcid bw Marina Khalilova;
    Marina Khalilova
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    orcid Anastasiia Zerkal;
    Anastasiia Zerkal
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    Anastasiia Zerkal in OpenAIRE
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    Renewable energy technologies play a crucial role in solving global energy and environmental issues, and the pace of the energy transition directly depends on improving their efficiency. Presently, the development and implementation of renewable energy systems are ensured mainly through state funding, the possibilities of which are limited. The potential of attracting private investments depends directly on their impact on companies’ profitability indicators, and the uncertainty regarding the return on investments is one of the main barriers affecting investors’ decision-making. Based on a vector autoregressive model for analysing the stationary time series, the paper explores the impact of long-term investments and research and development costs in renewable energy technologies on the financial performance of ten of the largest companies operating in this field. The study’s results showed that investments and spending on research and development positively affect such companies’ profitability indicators as earnings before interest, taxes, depreciation and amortisation, earnings before interest and tax, net income, and return on investment. The obtained results can be used to substantiate the economic effectiveness of investments in developing and improving renewable energy technologies when forming the companies’ financial policies to support them.

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    Energies
    Article . 2023 . Peer-reviewed
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    Energies
    Article . 2023
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      Energies
      Article . 2023 . Peer-reviewed
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      Energies
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    Authors: orcid Iryna Sotnyk;
    Iryna Sotnyk
    ORCID
    Harvested from ORCID Public Data File

    Iryna Sotnyk in OpenAIRE
    orcid bw Tetiana Kurbatova;
    Tetiana Kurbatova
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    Tetiana Kurbatova in OpenAIRE
    orcid Oleksandra Kubatko;
    Oleksandra Kubatko
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    Oleksandra Kubatko in OpenAIRE
    orcid Olha Prokopenko;
    Olha Prokopenko
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    Olha Prokopenko in OpenAIRE
    +1 Authors

    The recent surge in publications addressing household energy efficiency and renewable energy highlights their vital roles in managing national decarbonization and green power transition. The study aims to analyze the research trends in this field to comprehend their significance in shaping residential decarbonization changes. Bibliometric and visualization analyses are applied to bridge existing knowledge gaps by focusing on technology and managerial mechanisms for implementing energy efficiency and renewable energy concepts. Leveraging the Scopus database and VOSviewer 1.6.19 software, the study covers energy efficiency publications from 1978 to 2023 and renewable energy papers from 1984 to 2023. The study clusters academic articles in two ways: keyword co-occurrence and co-authorship analyses. The first one reveals the merging of renewable energy and energy efficiency studies, covering sustainable development, heating/cooling mechanisms, and emerging technology trends. While both topics share commonalities like smart grids and the Internet of Things, renewable energy clusters spotlight specific areas such as bioenergy and wind/solar power. Co-authorship analysis highlights a notable increase in countries considering research topics, reflecting growing international collaboration. Leading contributors include the United States, the United Kingdom, China, Germany, and India. This study equips scientists with a systematic understanding of the evolution and latest research trends in managing household energy efficiency and renewable energy transformations. It aids in identifying promising research directions, further advancing these crucial fields. AcknowledgmentsThe publication was prepared in the framework of the research project “Formation of economic mechanisms to increase energy efficiency and provide sustainable development of renewable energy in Ukraine’s households” (No. 0122U001233), funded by the National Research Foundation of Ukraine.

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    Problems and Perspectives in Management
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      Problems and Perspectives in Management
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    Authors: orcid Iryna Sotnyk;
    Iryna Sotnyk
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    Iryna Sotnyk in OpenAIRE
    orcid Tetiana Kurbatova;
    Tetiana Kurbatova
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    Tetiana Kurbatova in OpenAIRE
    orcid Oleksandr Kubatko;
    Oleksandr Kubatko
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    Oleksandr Kubatko in OpenAIRE
    orcid Olha Prokopenko;
    Olha Prokopenko
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    Olha Prokopenko in OpenAIRE
    +4 Authors

    This paper proposes methodological approaches to assessing the impact of renewable energy and energy efficiency development on emerging economies’ energy security. It is suggested to supplement the current methodology for assessing energy security with the decoupling index of the renewable energy financial burden on the state budget, the energy efficiency decoupling index, the households’ energy poverty indicator, the index of capacity development for balancing electricity generation volumes, and the energy fluctuations indicator. These indices provide a comprehensive assessment of energy security under the latest challenges. Thus, the COVID-19 pandemic in the Ukrainian energy sector led to the “green and coal paradox”, when the government decided to keep green electricity generation but limit nuclear generation. It required increased flexible capacities (thermal generation) and led to a rise in electricity prices and environmental pollution. Forecasting energy fluctuations with Butterworth filters allows minimizing the risks of maximum peak loads on the grid and timely prevention of emergencies. The energy fluctuations within the 20% range guarantee energy security and optimal energy companies’ operation. It is proposed to smooth out energy consumption fluctuations through green energy development, smart grids formation, energy efficiency improvements, and energy capacities balancing to ensure energy and economic sustainability.

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    Energies
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    Energies
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    Energies
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      Energies
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