scholarly journals Energy-Efficient Buildings, a step towards Sustainability in Pakistan

2019 ◽  
Vol 4 (4) ◽  
pp. 109-124
Author(s):  
Hashir Usman
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Thermal Comfort ◽  
Energy Efficient ◽  
Energy State ◽  
Renewable Energy Sources ◽  
Building Energy ◽  
Developed Countries ◽  
Zero Energy ◽  
The World

With every passing year, energy consumption in the world is increasing drastically. Most of the energy comes from fossil fuels which are also depleting in a fast manner. Buildings consume a significant amount of energy all over the world and the demand for energy is also increasing unremittingly in buildings. Developed countries are taking profound measures in order to make buildings energy efficient and sustainable by achieving nearly zero energy stage. Pakistan is facing a serious energy crisis from the past few decades. The building sector in Pakistan deserves special attention in this regard since the energy consumption in buildings in Pakistan is feverishly high. Many types of research have been carried out in Pakistan by the United Nations and Energy Department of Pakistan in order to devise applicable methods that not only provide thermal comfort to the occupants but also make a building energy efficient. Renewable energy also plays an important role in compensating building energy demands. It is easy to achieve nearly zero energy state in a good energy efficient building if it is coupled with renewable energy sources then it will make it self-sufficient in energy demand. A survey is also carried out to determine the thermal comfort of the occupants in different types of areas. Also, solar energy analysis is also taken into account to highlight the solar power potential in Pakistan. Several recommendations have also been suggested to implement energy efficiency measures in Pakistan.

Investigating the probability of designing net-zero energy buildings with consideration of electric vehicles and renewable energy

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Seyed Sajad Rezaei Nasab ◽  
Abbasali Tayefi Nasrabadi ◽  
Somayeh Asadi ◽  
Seiyed Ali Haj Seiyed Taghia
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Building Energy ◽  
Energy Performance ◽  
Zero Energy ◽  
Content Type ◽  
Building Energy Performance ◽  
Net Zero Energy ◽  
Net Zero ◽  
Net Zero Energy Buildings

PurposeDue to technological improvement and development of the vehicle-to-home (V2H) concept, electric vehicle (EV) can be considered as an active component of net-zero energy buildings (NZEBs). However, to achieve more dependable results, proper energy analysis is needed to take into consideration the stochastic behavior of renewable energy, energy consumption in the building and vehicle use pattern. This study aims to stochastically model a building integrating photovoltaic panels as a microgeneration technology and EVs to meet NZEB requirements.Design/methodology/approachFirst, a multiobjective nondominated sorting genetic algorithm (NSGA-II) was developed to optimize the building energy performance considering panels installed on the façade. Next, a dynamic solution is implemented in MATLAB to stochastically model electricity generation using solar panels as well as building and EV energy consumption. Besides, the Monte Carlo simulation method is used for quantifying the uncertainty of NZEB performance. To investigate the impact of weather on both energy consumption and generation, the model is tested in five different climatic zones in Iran.FindingsThe results show that the stochastic simulation provides building designers with a variety of convenient options to select the best design based on level of confidence and desired budget. Furthermore, economic evaluation signifies that investing in all studied cities is profitable.Originality/valueConsidering the uncertainty in building energy demand and PV power generation as well as EV mobility and the charging–discharging power profile for evaluating building energy performance is the main contribution of this study.

scholarly journals Solar energy and sustainable development

2006 ◽  
Vol 4 (1) ◽  
pp. 113-119 ◽  
Author(s):  
T.M. Pavlovic ◽  
J.M. Radosavljevic ◽  
Z.T. Pavlovic ◽  
Lj.T. Kostic
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Energy Consumption ◽  
Solar Energy ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Agenda 21 ◽  
The Sustainable Development ◽  
Development Agenda ◽  
The World

In this paper attention is drawn to the energy consumption in the world solar energy, sustainable development, agenda 21 and the influence of the renewable energy sources and solar energy on the sustainable development.

scholarly journals Barents region transition to a green economy

2021 ◽  
Vol 258 ◽  
pp. 06056
Author(s):  
Anton Shcherbak ◽  
Sergey Tishkov ◽  
Valentina Karginova-Gubinova
Keyword(s):  
Renewable Energy ◽  
Energy Efficient ◽  
Renewable Energy Sources ◽  
Green Economy ◽  
Energy Sources ◽  
Economic Potential ◽  
Energy Potential ◽  
Barents Region ◽  
The World ◽  
New Energy

The article addresses the development of a green economy through the prism of renewable energy. Currently, interest in the development of renewable energy is growing dramatically, as evidenced by the highest growth of renewable energy among all energy sources in the world balance. The aim of this article is to carry out the quantitative assessment and to estimate economic potential from introduction of promising energy-saving and energy-efficient technologies, new energy sources. This paper considers the energy sector through the renewable energy sources, with a particular focus on the Barents region in view of its specific. The article gives a brief overview of the main types of renewable energy sources in this territory. The article is completed with the evaluation of the energy potential in Russian part of the Barents region.

scholarly journals Study on the Certification Policy of Zero-Energy Buildings in Korea

2020 ◽  
Vol 12 (12) ◽  
pp. 5172 ◽  
Author(s):  
Yeweon Kim ◽  
Ki-Hyung Yu
Keyword(s):  
Energy Efficiency ◽  
Renewable Energy ◽  
Energy Consumption ◽  
Residential Buildings ◽  
Building Energy ◽  
Primary Energy ◽  
Zero Energy ◽  
Renewable Energy Consumption ◽  
Self Sufficiency ◽  
Zero Energy Buildings

This study presents a methodology and process to establish a mandatory policy of zero-energy buildings (ZEBs) in Korea. To determine the mandatory level to acquire the rating of a ZEB in Korea, this study was conducted under the assumption that the criteria of ZEB was a top 5% building considering the building’s energy-efficiency rating, which was certified through a quantitative building energy analysis. A self-sufficiency rate was also proposed to strengthen the passive standard of the buildings as well as to encourage new and renewable energy production. Accordingly, zero-energy buildings (ZEBs) in Korea are defined as having 60 kWh/(m2·yr) of non-renewable primary energy (NRPE) consumption in residential buildings and 80 kWh/(m2·yr) in non-residential buildings, and the self-reliance rate should be more than 20% of the renewable energy consumption as compared to the total energy consumption of the buildings. In addition, the mandatory installation of building energy management systems (BEMS) was promoted to investigate the energy behavior in buildings to be certified as zero-energy in the future. This study also investigated the number of ZEB certificates during the demonstration period from 2017 to 2019 to analyze the energy demand, non-renewable primary energy, renewable primary energy, and self-sufficiency rate as compared to those under the previous standards. For ZEB Grade 1 as compared to the existing building energy-efficiency rating, the sum of the NRPE decreased more than 50%, and renewable energy consumption increased more than four times.

scholarly journals ANALYSIS OF THE USE OF FUEL BY HOUSEHOLDS AND NON-INDUSTRIAL CONSUMERS

2018 ◽  
Vol 40 (4) ◽  
pp. 75-82
Author(s):  
S.V. Radchenko
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Statistical Data ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Heating Systems ◽  
Residential Sector ◽  
Final Energy ◽  
The World ◽  
Final Energy Consumption

Purpose of the paper is to analyze the available statistical data on fuel consumption by population in every region of Ukraine. To identify similarities and differences in development trends the comparison of structure of final energy consumption in Ukraine and the world was done. The degree of distribution of individual heating systems in urban settlements and rural areas in 2015 is determined. Analysis of the use of the main types of fuel by households sector in regions of Ukraine is performed. The amount of fuel consumed by the population does not linearly depend on the share of individual heating systems in the region (this was shown by an example), therefore to develop strategy for extending the use of renewable energy sources (RES) in the households more factors will need to be considered. Ukrainian and world energy balance data for 2015 (item “Other” which includes residential sector, commerce and public services, agriculture, fishing, other consumers) on the consumption of four main types of fuel (coal and peat, oil products, natural gas, biofuels and waste) were compared. It was concluded that in Ukraine the proportion of basic fuels consumption corresponds to world trends. However, after analyzing the distribution of total final energy consumption certain differences were observed. Analysis of renewable energy sources use by sectors has demonstrated that the residential sector is the leader in renewable energy sources consumption both in the world and in Ukraine. In Ukraine statistical data on biofuel consumption is mainly based on information about firewood and wood biomass consumption. This explains the higher percentage of biofuel consumption in forested areas. It should also be noted that in Ukraine 32% of the wood used by population was sold to households by enterprises and 68% was obtained from self-preparation. Over the past decade consumption of biomass fuel for household needs in Ukraine has doubled, and it is increasingly replacing coal fuel, thus exerting a positive impact on the environment.

scholarly journals Consumer habits and preferences in the renewable energy market

2019 ◽  
Author(s):  
Attila Bai ◽  
Péter Balogh ◽  
Károly Pető ◽  
Zoltán Szakály
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Renewable Energy Sources ◽  
High Rate ◽  
Energy Sources ◽  
Income Status ◽  
World Energy ◽  
The World ◽  
The Future ◽  
The Eu

The world energy consumption was about 567-578 EJ in 2017 which is still increasing – in 2017 by 2.2%, and yearly by 1.7% on average since 2006 (BP, 2018, IEA, 2018). Within this, the consumption of residential segment plays a significant role both in the EU (42%) and in Hungary (35%) as well (Eurostat, 2019). The Hungarian population spend 12.8% (35 EUR/capita/month) of their income on energy sources, and this rate is even higher in case of the pensioners, singles and those who have lower income (KSH, 2019). At the same time, the rate of renewables in the energy mix stagnates for years worldwide (14%), it is a bit higher in the EU and in Hungary than the world average (18-18%, IEA, 2018). Thus, the renewable energy sources can also have serious perspectives in the residential cost reduction, in the sustainable energy consumption and in the local income production. Our aim is to analyse the knowledge of Hungarian consumers on renewable energy sources, their willingness to apply them and the socio-demographic factors on these. To execute the research objectives, a national representative survey with 1000 people was started in April 2019 in Hungary. Based on the results of the questionnaire, it was concluded that the information of the inhabitants is below the average in case of every examined renewable energy source, which is especially true for the biomass-based energy sources. The ease is almost as important as the environment friendliness. An excessively high rate of respondents (34 and 27%) is interested in solar panels and solar collectors, 32% of them seclude themselves from the use of these energy sources. It would be justified to extend these consumer researches in the future for more countries. The authors wish to clarify how the differences in location, income status and residential segment and values influence the spread of these energy sources in the EU and by which tools could support the usage of these in the future. Acknowledgment This research was supported by EFOP-3.6.1-16-2016-00022 „Debrecen Venture Catapult Program”. The research was financed by the Higher Education Institutional Excellence Programme (20428-3/2018/FEKUTSTRAT) of the Ministry of Human Capacities in Hungary, within the framework of the 4.thematic programme of the University of Debrecen.   References BP (British Petrol, 2018): Statistical Review of World Energy. 67th edition, pp. 1-52Eurostat (2019): https://ec.europa.eu/eurostat/statistics-explained/index.php/Renewable_energy_statisticsInternational Energy Agency (IEA, 2018): Key World Energy Statistics. www.iea. org/statistics, pp. 1-51KSH (Hungarian Central Statistic Agency, 2019). http://www.ksh.hu/thm/3/indi3_1_2.html

scholarly journals Distributed Generation from Renewable Energy Sources: Ending Energy Poverty Across the World

2020 ◽  
Author(s):  
Mario Pagliaro ◽  
Francesco Meneguzzo
Keyword(s):  
Renewable Energy ◽  
Distributed Generation ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Developed Countries ◽  
Energy Sources ◽  
Energy Poverty ◽  
Policy Makers ◽  
The World ◽  
Systems View

Following an updated outlook of global energy production and utilization, we show through selected examples from both developing and developed countries how distributed generation from renewable energy sources, and from solar energy in particular, is the key solution to ending energy poverty across the world. Guidelines aimed at policy makers suggest a systems view of energy that will be instrumental in guiding the transition from fossil fuels to combustion-free renewable energy for all energy end uses.

scholarly journals Recent trends and issues in energy conservation technologies

2019 ◽  
Vol 1 (1) ◽  
pp. 33-40
Author(s):  
Ömer Faruk Ulusoy ◽  
Erkan Pektaş
Keyword(s):  
Energy Efficiency ◽  
Renewable Energy ◽  
Energy Consumption ◽  
Energy Demand ◽  
Industrial Revolution ◽  
Renewable Energy Sources ◽  
International Energy Agency ◽  
Advanced Technology ◽  
Energy Agency ◽  
The World

Energy efficiency is a set of measures to prevent the loss of energy in gas, steam, air and electricity, to reduce energy demand by recycling and evaluating various wastes, or to reduce production by advanced technology, more efficient energy resources, advanced industrial processes, and energy recovery.  The International Energy Agency announced that world energy consumption increased by 45% since 1980 and would be 70% higher by 2030 [1]. The energy policy of the future will be on saving, energy efficiency and renewable energy trilogy. Today, with the industrial revolution, the environmental problems and the damages caused by the world we live in today have reached the dimensions that threaten human health and ecological balance. Considering that the energy consumed in the world is in buildings, every measure that reduces energy consumption is very important in terms of improving life conditions. For this purpose, the importance of renewable energy sources in the design of energy architecture principles in energy efficiency and sustainable environments is stated.

scholarly journals Mitigating Climate Change Through Energy Efficient Practices in High Altitutes of Nepal

2017 ◽  
pp. 745-755
Author(s):  
Silu Bhochhibhoya ◽  
Ramesh Kumar Maskey ◽  
Sanjaya Nath Khanal
Keyword(s):  
Climate Change ◽  
Renewable Energy ◽  
Energy Consumption ◽  
Energy Efficient ◽  
Fossil Fuels ◽  
Negative Impact ◽  
Risk Mitigation ◽  
Renewable Energy Sources ◽  
Mitigation And Adaptation ◽  
The Impact

Climate change is a global scale crisis with drastic effects on higher altitudes. Ice melting and its corresponding impacts on mountain ecosystems are just some of the most directly visible signals of global warming. Increased rate of energy consumption, emissions along with ever growing tourist inflow in such areas has a high impact on this phenomenon. Particulate matter, Carbon Dioxide and Methane are some of the chief emissions in such areas with negative impact on the environment. Since burning of fossil fuels is one of the main root causes of cclimate change, its risk mitigation and adaptation depends greatly on energy conservation and the use of renewable energy technologies. Well insulated energy – efficient building construction method and the increased use of renewable energy sources could be the key solution. Reduction of dung-cakes and kerosene for space heating would decrease the greenhouse gas emissions as well as black carbons and particulate matters and improves the indoor living conditions. Energy efficient technologies including the building of traditional Sherpa houses could be the best practice to reduce the impact of climate change in high altitudes. This paper is primarily concerned with testing the thermal properties of insulating tiles made of locally available materials as well as to establish a correlation between energy consumption patterns in different building types with respective CO2 emissions.Subsequently, the positive attributes of such energy conserving design in relation to climate change adaptation is ascertained.

scholarly journals Current state and problems of alternative energy development in the world

2020 ◽  
Vol 159 ◽  
pp. 07004
Author(s):  
Bakhyt Baitanayeva ◽  
Aimankul Yerezhepova ◽  
Biken Nurmanova ◽  
Gulmira Andabayeva
Keyword(s):  
Renewable Energy ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Developed Countries ◽  
Energy Sources ◽  
Special Role ◽  
Factors Affecting ◽  
Alternative Energy Sources ◽  
Current State ◽  
The World

The article is devoted to the current state and analysis of factors affecting the use of alternative energy sources on a global scale. There is a constant growth in volumes energy consumption, which is associated with the stability of the global economy, increasing costs for heating and cooling in various parts of the world. At the same time in the most densely populated areas (China, India), coal accounts for up to 80 % of the energy balance, which leads to an increase in CO2 emissions. In this regard, the article notes the need to switch to the use of alternative energy sources (wind, solar, hydro, geothermal and biomass, nuclear energy). The article analysis the current state of energy sources in developed countries according to statistics for 2018. The authors concludes that the growth rate of renewable energy resources is insufficient, despite their advantage over traditional sources. In this regard, the factors affecting the efficiency of renewable energy sources were summarized. In addition, the article identifies barriers that prevent the acceleration of the rate of replacing traditional energy sources with RES. At the same time, state support measures and relevant legislative acts play a special role in stimulating and attracting the necessary investments.

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