Impact of renewable energy technologies on the embodied and operational GHG emissions of a nearly zero energy building

2019 ◽  
Vol 22 ◽  
pp. 439-450 ◽  
Author(s):  
Sirje Vares ◽  
Tarja Häkkinen ◽  
Jaakko Ketomäki ◽  
Jari Shemeikka ◽  
Nusrat Jung
2020 ◽  
Author(s):  
Iulia Prodan ◽  
Horia Ban ◽  
Octavian Bujor

<p>Following the Directive 2010/31/EU on energy performance of buildings, EU state members have developed national plans for increasing the number of nearly zero energy buildings through measures that facilitate the implementation of renewable energy technologies. Due to this policies changes and also due to their incontestable advantages, energy geostructures are showing an increasing trend in number of implementations all across Europe. However, it is important that besides “good statistics”, the quality and efficiency of what is implemented to be ensured so that a real change is generated in terms of renewable energy exploitation and CO2 emissions reduction. The paper refers to challenges that are encountered in the process of implementation of energy geostructures especially on emerging markets for this technology, such as Eastern Europe, with emphasis on several case studies and evidence from Romania.</p>


Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 527
Author(s):  
Oskar Juszczyk ◽  
Juliusz Juszczyk ◽  
Sławomir Juszczyk ◽  
Josu Takala

A harmful impact of climate change and global warming has concerned various sectors of the international community. Numerous energy policies aiming at climate change mitigation have been implemented on a national and global scale. Renewable energy technologies (RETs) play a critical role in enhancing sustainable solutions that significantly limit greenhouse gas (GHG) emissions. Such innovative technologies can facilitate energy transition through providing, e.g., energy security, sustainable development, and effective usage of indigenous resources. However, the commercialization of RETs is extremely challenging. The barriers can be of a different nature, although this study focused on socioeconomic and regulatory issues. There is ample evidence that energy policies play a central role in supporting adoption of renewables. It is also claimed that RETs require the whole ecosystem to support their successful diffusion. In this study, we explored multifarious barriers for widespread RET diffusion in two European Union countries, Finland and Poland, indicating the most common barriers existing in the literature as well as analyzing major bottlenecks from the viewpoint of renewable energy companies’ executives. We also present statistics of the most commonly used RETs in these countries in order to express the diffusion issues more appropriately. The research shows that inflexible, ineffective, and excessive regulatory frameworks; limited financing options; as well as an insufficient level of societal awareness have been seen as the main bottlenecks for RET diffusion in both countries. The outcomes of this study provide useful insights for the researchers in the energy transition field as well as practical managerial and regulatory implications aimed at overcoming these challenges.


Author(s):  
Oskar Juszczyk ◽  
Juliusz Juszczyk ◽  
Sławomir Juszczyk ◽  
Josu Takala

A harmful impact of climate change and global warming has concerned various sectors of the international community. Numerous energy policies aiming at climate change mitigation have been implemented on a national and global scale. Renewable Energy Technologies (RET) play a critical role in enhancing sustainable solutions that significantly limit greenhouse gases (GHG) emissions. Such innovative technologies can facilitate energy transition through providing e.g. energy security, sustainable development, or effective usage of indigenous resources. However, the commercialization of RET becomes extremely challenging. The barriers can be of a different nature, although in this study the focus has been put on socio-economic and regulatory issues. In fact, there is ample evidence that energy policies play a central role in supporting renewables adoption. It is also claimed that RET require the whole ecosystem to support their successful diffusion. In this study, we explore multifarious barriers for a widespread RET diffusion in two European Union countries: Finland and Poland, indicating the most common barriers existing in the literature as well as analyzing major bottlenecks in the viewpoint of renewable energy companies’ executives. We also present statistics of the most commonly used RET in these countries in order to express the diffusion issues more appropriately. The outcomes of this study provide useful insight for the researchers in the energy transition field as well as practical managerial and regulatory implications aimed at overcoming these challenges.


2020 ◽  
Vol 15 (1) ◽  
pp. 185-214
Author(s):  
Rutul Bhavsar ◽  
Anthony Cupido ◽  
Mariano Arriaga

INTRODUCTION In recent years, large high efficiency and Net-Zero Energy Buildings (NZEB) are becoming a reality that are setting construction and energy benchmarks for the industry. As part of this significant effort, in 2018, Mohawk College opened the 8,981 m2 (96,670 ft2) Joyce Centre for Partnership and Innovation (JCPI) building in Hamilton, Ontario; becoming Canada's largest NZEB and zero-carbon institutional facility. The building integrated a high-efficiency design, construction materials, and technologies; as well as renewable energy technologies to significantly reduce its annual energy consumption and greenhouse gas emissions. Furthermore, the JCPI building was also designed as a living lab where students, faculty, researchers and industry are able to monitor and validate the performance of this state-of-the-art facility. The building was designed to have an energy use intensity of 73 kWh/m2·year (0.26 GJ/m2·year); hence, potentially consuming approximately 80% less energy than the average educational service building in Ontario. This paper gives an overview of the design criteria and technologies that were considered to achieve this innovative building.


2021 ◽  
Vol 25 (1) ◽  
pp. 222-232
Author(s):  
Aiman Albatayneh ◽  
Mohammed N. Assaf ◽  
Muna Al-Qroum ◽  
Dariusz Alterman

Abstract Just over half of the energy consumed in Jordan is consumed by transportation, of which passenger cars account for 57 %. This has increased fuel bills and elevated CO2 emissions, creating social and economic pressures. However, these can be ameliorated by enhancing the efficiency with which energy in the transportation sector is utilised. In Jordan, most of the passenger cars in 2017 ran on diesel and gasoline fuel, with only a small percentage (0.23 %, equivalent to 3586 cars) running on electricity. The aim of this paper was to assess the possible advantages of replacing passenger cars that run on fossil fuel with electrically powered vehicles. This was achieved through an examination of six scenarios where the key variable was the type of fuel needed to produce the electricity required to charge the cars. Different replacement percentages were also tested. Detailed analysis and calculations of CO2e emissions and the electricity needed were then performed. The results indicated that replacing fossil fuel passenger cars with electric cars is an effective option for reducing the amount of CO2e emissions and can decelerate the rate at which energy is consumed in the transportation sector, dramatically reducing the national fuel bill. If the running costs of car fuel are reduced, the use of renewable energy technologies based on solar and wind will also reduce the level of GHG emissions.


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