One size fits all? Prospects for developing a common strategy supporting European Union households in times of energy crisis

Kola-Bezka, Maria

doi:10.1016/j.egyr.2023.06.039

Cited by 6 publications

(2 citation statements)

References 38 publications

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“…There are many reasons for this phenomenon. According to the authors of [1], it began in 2021, when economies were experiencing a renaissance after the first lockdowns of the COVID-19 pandemic [2]. This has resulted in a significant increase in prices in electricity markets, as well as in natural gas markets [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

The Novel Approach of Using Electric Vehicles as a Resource to Mitigate the Negative Effects of Power Rationing on Non-Residential Buildings

Zagrajek,

Kłos,

Rasolomampionona

et al. 2023

Energies

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This paper presents the concept of using electric vehicles (EVs) as a countermeasure to deal with the negative effects of power rationing when electricity demands become difficult to meet due to unfavorable electrical system operating conditions. At present, an energy storage is widely used to maintain the stability of electricity supply in facilities whose main source of energy is renewable energy sources (RESs). However, we must not forget that electric vehicles are also electricity storage facilities, but they are not always available due to their mobility. With properly developed strategies, they can be used in electricity management processes, for example, by reducing their consumption during charging using smart charging technology, or by providing electricity from their batteries using vehicle-to-building (V2B) technology. Thus, this article presents a research methodology that treats electric vehicles as a remedy for eliminating power constraints. It consists of five main steps, including two algorithms for deciding how to deploy EVs during power rationing periods. An efficiency factor for eliminating these constraints was also introduced. The results showed that the use of smart charging or V2B technology in EVs can reduce the number of potential hours in which certain power levels are exceeded by up to several tens of percent. This means that in the future, with the significant development of electromobility, such a way of dealing with power constraints could be an alternative to conventional solutions like diesel generators.

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Section: Introductionmentioning

confidence: 99%

The Novel Approach of Using Electric Vehicles as a Resource to Mitigate the Negative Effects of Power Rationing on Non-Residential Buildings

Zagrajek,

Kłos,

Rasolomampionona

et al. 2023

Energies

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“…The global energy market is facing increased volatility, particularly since 2020, accompanied by unprecedented surges in energy prices. In this context, the pursuit of building stock energy efficiency emerges as an increasingly pressing concern [1][2][3][4][5][6]. Building stock accounts for approximately 40% of total primary energy consumption worldwide and, therefore, has a large impact on total energy consumption across all sectors [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Cold Climate Challenges: Analysis of Heat Recovery Efficiency in Ventilation Systems

Prozuments,

Zemitis,

Bulanovs

2023

Energies

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As building energy consumption gains ever-increasing attention worldwide, the focus on addressing it through the examination and optimization of efficient heat recovery solutions continues to intensify. With well-insulated and airtight buildings, the proportion of heating needs attributed to ventilation is growing, leading to the widespread integration and optimization of heat recovery solutions in mechanical ventilation systems. Heat recovery in ventilation is a highly efficient strategy for reducing heat losses and conserving energy. This study involves the investigation of a ventilation unit installed in an apartment situated in Riga, Latvia, as a practical examination of heat recovery system efficiency within the Latvian climate conditions, representing a cold climate region. The objective of this study was to examine the heat recovery efficiency of the ventilation system in the Latvian climate with variable outdoor and exhaust air parameters, given that the dry heat recovery efficiency is different from the actual heat recovery efficiency. The ventilation unit was equipped with a plate heat exchanger at an airflow rate of 105 m3/h. To evaluate heat recovery efficiency, extensive measurements of air temperature and relative humidity were conducted. The collected data was analyzed, employing statistical regression analysis to ensure measurement reliability and assess correlations. The findings indicated a strong correlation between variables such as heat content, moisture content, and sensible air parameters. It was observed that the actual heat recovery efficiency was 6% higher than the calculated dry efficiency, emphasizing the importance of considering real-world conditions in heat recovery assessments. Additionally, regression analysis demonstrated a positive linear correlation with a coefficient of 0.77, highlighting the dependency between actual measurements and the theoretical model. These quantitative outcomes provide essential insights for optimizing heat recovery systems and enhancing energy-efficient ventilation practices, especially in cold climate environments. Moreover, this study highlights the strong correlation between variables such as heat content, moisture content, and sensible air parameters. Findings offer essential insights for optimizing heat recovery systems and enhancing energy-efficient ventilation practices, especially in cold climate environments.

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A comparative investigation of building rooftop retrofit actions using an energy and computer fluid dynamics approach

Kitsopoulou,

Pallantzas,

Sammoutos

et al. 2024

Energy and Buildings

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One size fits all? Prospects for developing a common strategy supporting European Union households in times of energy crisis

Cited by 6 publications

References 38 publications

The Novel Approach of Using Electric Vehicles as a Resource to Mitigate the Negative Effects of Power Rationing on Non-Residential Buildings

The Novel Approach of Using Electric Vehicles as a Resource to Mitigate the Negative Effects of Power Rationing on Non-Residential Buildings

Cold Climate Challenges: Analysis of Heat Recovery Efficiency in Ventilation Systems

A comparative investigation of building rooftop retrofit actions using an energy and computer fluid dynamics approach

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