Future trends for solar energy use in nearly zero energy buildings

2016 ◽  
pp. 547-569 ◽  
Author(s):  
M. Moldovan ◽  
I. Visa ◽  
A. Duta
Keyword(s):  
Solar Energy ◽  
Energy Use ◽  
Future Trends ◽  
Zero Energy ◽  
Zero Energy Buildings

scholarly journals A Measured Energy Use, Solar Production, and Building Air leakage Dataset for a Zero Energy Commercial Building

2021 ◽  
Author(s):  
Philip Agee ◽  
Leila Nikdel ◽  
Sydney Roberts
Keyword(s):  
Solar Energy ◽  
Energy Production ◽  
Energy Use ◽  
The United States ◽  
Test Method ◽  
Army Corps ◽  
Air Leakage ◽  
Commercial Building ◽  
Zero Energy ◽  
Measured Energy

This paper provides an open dataset of measured energy use, solar energy production, and building air leakage data from a 328 m2 (3,531 ft2) all-electric, zero energy commercial building in Virginia, USA. Over two years of energy use data were collected at 1-hour intervals using circuit-level energy monitors. Over six years of solar energy production data were measured at 1-hour intervals by 56 microinverters. The building air leakage data was measured post-construction per ASTM-E779 Standard Test Method for Determining Air Leakage Rate by Fan Pressurization and the United States Army Corps (USACE) Building Enclosure Testing procedure; both pressurization and depressurization results are provided. The architectural and engineering (AE) documents are provided to aid researchers and practitioners in reliable modelling of building performance. The paper describes the data collection methods, cleaning, and convergence with weather data. This dataset can be employed to predict, benchmark, and calibrate operational outcomes in zero energy commercial buildings.

scholarly journals A measured energy use, solar production, and building air leakage dataset for a zero energy commercial building

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Philip Agee ◽  
Leila Nikdel ◽  
Sydney Roberts
Keyword(s):  
Solar Energy ◽  
Energy Production ◽  
Energy Use ◽  
The United States ◽  
Test Method ◽  
Army Corps ◽  
Air Leakage ◽  
Commercial Building ◽  
Zero Energy ◽  
Measured Energy

AbstractThis paper provides an open dataset of measured energy use, solar energy production, and building air leakage data from a 328 m2 (3,531 ft2) all-electric, zero energy commercial building in Virginia, USA. Over two years of energy use data were collected at 1-hour intervals using circuit-level energy monitors. Over six years of solar energy production data were measured at 1-hour resolution by 56 microinverters (presented as daily and monthly data in this dataset). The building air leakage data was measured post-construction per ASTM-E779 Standard Test Method for Determining Air Leakage Rate by Fan Pressurization and the United States Army Corps (USACE) Building Enclosure Testing procedure; both pressurization and depressurization results are provided. The architectural and engineering (AE) documents are provided to aid researchers and practitioners in reliable modeling of building performance. The paper describes the data collection methods, cleaning, and convergence with weather data. This dataset can be employed to predict, benchmark, and calibrate operational outcomes in zero energy commercial buildings.

Zero Energy Houses and Embodied Energy: Regulatory and Design Considerations

2008 ◽  
Author(s):  
Patxi Hernandez ◽  
Paul Kenny
Keyword(s):  
Life Cycle ◽  
Energy Demand ◽  
Energy Use ◽  
Construction Materials ◽  
Energy Performance ◽  
Embodied Energy ◽  
Base Case ◽  
Life Cycle Approach ◽  
Zero Energy ◽  
Zero Energy Buildings

Building energy performance regulations and standards around the world are evolving aiming to reduce the energy use in buildings. As we move towards zero energy buildings, the embodied energy of construction materials and energy systems becomes more important, as it represents a high percentage of the overall life cycle energy use of a building. However, this issue is still ignored by many regulations and certification methods, as happens with the European Energy Performance of Buildings Directive (EPBD), which focuses on the energy used in operation. This paper analyses a typical house designed to comply with Irish building regulations, calculating its energy use for heating and how water with the Irish national calculation tool, which uses a methodology in line with the EPBD. A range of measures to reduce the energy performance in use of this typical house are proposed, calculating the reduced energy demand and moving towards a zero energy demand building. A life-cycle approach is added to the analysis, taking into account the differential embodied energy of the implemented measures in relation to the typical house base-case, annualizing the differential embodied energy and re-calculating the overall energy use. The paper discusses how a simplified approach for accounting embodied energy of materials could be useful in a goal to achieve the lowest life-cycle energy use in buildings, and concludes with a note on how accounting for embodied energy is a key element when moving towards zero energy buildings.

Hybrid Solar and Wind Electric System for Romanian Nearly Zero Energy Buildings (nZEB) - Case Study

2016 ◽  
Vol 841 ◽  
pp. 110-115
Author(s):  
Gheorge Badea ◽  
Raluca Andreea Felseghi ◽  
Simona Răboaca ◽  
Ioan Aşchilean ◽  
Andrei Bolboacă ◽  
...  
Keyword(s):  
Energy Use ◽  
Residential Buildings ◽  
Energy Performance ◽  
Green Energy ◽  
Design Solution ◽  
Design Parameters ◽  
Zero Energy ◽  
Electric System ◽  
Zero Energy Buildings

For a good approach to new challenges recommended by EU Energy Performance of Buildings Directive, nearly Zero Energy Buildings (nZEB) concept for new residential buildings is conceived in order to drastically improving the overall performance of classical buildings, especially in terms of energy use, production and CO2 equivalent (CO2e) emissions. This paper shows the results of the case study where was investigated energy, economic and environmental performances of hybrid solar and wind system for neutral in terms of climate parameters nZEB. The aim of this study was to demonstrate the capability and feasibility of RES hybrid technology for the energy supply of Romanian nZEB, and also, was to establish new general criteria with the goal to determinate the optimal design solution and providing general principles for green energy production. The main results reveal that Romania has a potential for green energy to implement the new concept nZEB and the global technical optimum of a hybrid system for nZEB is determined by the optimal interaction between the design parameters. The hybrid solar and wind electric systems are functioned in operational stand alone mode, its are supplied 100% by energy from RES and embedded CO2 emissions are decreased by over 50% compared to the classics systems.

scholarly journals Efficient energy use and storage practices within residential facilities for compliance with the nZEB criteria

2019 ◽  
Vol 85 ◽  
pp. 08002
Author(s):  
Ion Murgescu ◽  
Lucia-Andreea El-Leathey ◽  
Rareş-Andrei Chihaia ◽  
Gabriela Cîrciumaru
Keyword(s):  
Renewable Energy ◽  
Energy Use ◽  
Electricity Consumption ◽  
Energy Performance ◽  
High Energy ◽  
Photovoltaic System ◽  
Zero Energy ◽  
Starting Point ◽  
Very High Energy ◽  
Zero Energy Buildings

Solar energy, today, is the leader in renewable energy and the world's increasing new energy source. In 2016, for the first time, newly installed photovoltaic capacity has increased by more than 50%, exceeding the new coal-fired power stations capacity established worldwide. At the beginning of the year, the European Parliament agreed the target that 35% renewable sources by 2030. Studies show that by 2050 approximately 45% of all the households in the EU could produce their own renewable energy and more than a third of them could be part of a renewable energy cooperative, despite the worries of the distribution companies. Furthermore, the EPBD directive (EU) - Energy Performance of Buildings pushes towards new and more performing buildings - nearly zero energy buildings (nZEB) - where energy efficiency and energy flexibility are essential to achieve the required performance targets. Nearly zero-energy buildings (NZEBs) have very high energy performance and could be achieved through the integration of renewable and decentralized energy sources, continuous grid optimization and the inclusion of increasing numbers of consumers becoming producers, so called prosumers. So far, the photovoltaic system is the single technology that can combine data from utility networks with household consumption and therefore should be considered a starting point for streamlining the electricity consumption and production which will be imposed by strict regulations.

scholarly journals Zero Energy Building: Systematic Literature Review

2021 ◽  
Author(s):  
Mohammad Reza Bahrami
Keyword(s):  
Energy Use ◽  
Fossil Fuel ◽  
Residential Buildings ◽  
Renewable Energy Sources ◽  
High Rate ◽  
Zero Energy ◽  
Environmental Care ◽  
Zero Energy Building ◽  
Global Problems ◽  
Zero Energy Buildings

Nowadays, one of the global problems is climate change. Commercial and residential buildings are among the most powerful consumers of energy. The energy consumption of buildings increases because of the development of the residents’ needs. Zero Energy Building uses renewable energy sources therefore Zero Energy Buildings have advantages in the field of environmental care because of the mitigation of CO2 emissions and the decrease of energy use in the building sector. The deposits of fossil fuel deplete at a high rate. The new deposits are extremely hard to find and if they are discovered are smaller than already used ones. Therefore, Zero Energy Buildings are the solution for this problem because they do not depend on fuel.

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