scholarly journals The impact of urban design decisions on net zero energy solar buildings in Sweden

2014 ◽  
Vol 2 (1) ◽  
pp. 312-332 ◽  
Author(s):  
Jouri Kanters ◽  
Maria Wall
Keyword(s):  
Urban Design ◽  
Zero Energy ◽  
Design Decisions ◽  
Net Zero Energy ◽  
Net Zero ◽  
The Impact

scholarly journals Zero Energy Buildings - With Special Reference to NZEBs in Kashmir, India

2020 ◽  
Vol 3 (11) ◽  
pp. 80-85
Author(s):  
Er Irtiza Khurshid ◽  
Zeeshan Altaf Beg ◽  
Abrar Fayaz Aga ◽  
Najmu Saqib Tantray ◽  
Umair Iqbal Mughal ◽  
...  
Keyword(s):  
Energy Efficient ◽  
Energy Prices ◽  
Low Carbon ◽  
Zero Energy ◽  
Net Zero Energy ◽  
Net Zero ◽  
The Future ◽  
The Impact ◽  
Net Zero Energy Buildings ◽  
Zero Energy Buildings

Amid the modern-day fluctuating energy prices, the impact on the climate and the statistics regarding the energy consumption, buildings are the main consumers in India. If the energy efficient methodologies are brought into the design procedures, the buildings so constructed will be future ready and highly efficient. The existing buildings will thus be a thing of the past and energy producing and low carbon footprint producing buildings will be achieved. Net Zero Energy Buildings (NZEB) are the buildings that will shape the futuristic societies and help us achieve what was previously thought to be impossible. These NZEBs will be the saviours of the environment and will represent the future of humanity. The NZEBs are all about the interconnectivity of the man made environment and the ecosystem. With the future of the resources getting diminished day by day, the modern buildings need to be energy efficient as well as energy producing. In a NZEB, the total energy that is consumed is equal or sometimes less than the energy generated by renewable energy technologies installed on site. Multiple strategies are placed in to make the NZEB very efficient. In this paper, we tend to discuss the necessary arrangements that need to be deployed in Net Zero Energy Buildings in the Kashmir division of the UT of Jammu & Kashmir, India.

Potential Impacts of Net-Zero Energy Buildings With Distributed Photovoltaic Power Generation on the U.S. Electrical Grid

2019 ◽  
Vol 141 (6) ◽  
Author(s):  
Dongsu Kim ◽  
Heejin Cho ◽  
Rogelio Luck
Keyword(s):  
Power Generation ◽  
Electricity Demand ◽  
Office Building ◽  
Zero Energy ◽  
Electrical Grid ◽  
Net Zero Energy ◽  
Net Zero ◽  
Simulation Based ◽  
The Impact ◽  
The U.S

This study evaluates the potential aggregate effects of net-zero energy building (NZEB) implementations on the electrical grid in a simulation-based analysis. To estimate the impact of NZEBs on the electrical grid, a simulation-based study of an office building with a grid-tied photovoltaic (PV) power generation system is conducted. This study assumes that net-metering is available for NZEBs such that the excess on-site PV generation can be fed to the electrical grid. The impact of electrical energy storage (EES) within NZEBs on the electrical grid is also considered in this study. Different levels of NZEB adoption are examined: 20%, 50%, and 100% of the U.S. office building stock. Results indicate that significant penetration of NZEBs could potentially affect the current U.S. electricity demand profiles by reducing purchased electricity from the electrical grid and by increasing exported electricity to the electrical grid during peak hours. Annual electricity consumption of simulated office NZEBs in the U.S. climate locations is in the range of around 94–132 kWh/m2 yr. Comparison of hourly electricity demand profiles for the actual U.S. demand versus the calculated net-demand on a national scales indicates that the peak percentage difference of the U.S. net-electricity demand includes about 10.7%, 15.2%, and 9.3% for 100% of the U.S. NZEB stock on representative summer, transition, and winter days, respectively. Using EES within NZEBs, the peak percentage differences are reduced and shifted to the afternoon, including 8.6%, 13.3%, and 6.3% for 100% of the U.S. NZEB stock on each representative day.

scholarly journals Towards the evaluation of a thermal compartmentation renovation concept through in-situ measurements

2020 ◽  
Vol 172 ◽  
pp. 01007
Author(s):  
Twan Rovers ◽  
Christian Struck ◽  
Jeroen van ‘t Ende
Keyword(s):  
Thermal Performance ◽  
Fossil Fuel ◽  
Energy Transition ◽  
Zero Energy ◽  
Net Zero Energy ◽  
Net Zero ◽  
The Impact ◽  
Housing Corporations

Facing the energy transition, Dutch social housing corporations are expected to fulfil a pioneering role in realising fossil fuel free and CO2 neutral dwellings and neighbourhoods. However, given the high current costs of retrofitting dwellings to net zero energy, housing corporations are searching diligently for alternative, more affordable, renovation strategies. A Thermal Compartmentation renovation concept has been developed, in which retrofitting efforts are concentrated on the living spaces in dwellings. By means of co-heating tests, the quality of the thermal shell of three retrofitted case objects has been evaluated. It is found that both the airtightness and the heat loss coefficient (HLC) improved significantly as a result of the renovation. As would be expected, the realised ‘warm compartments’ show a better thermal performance than the entire dwellings. Although the measurements and subsequent analyses have confirmed the impact of the renovation measures on the buildings’ thermal performance, additional research targeting the inhabited dwellings is necessary to draw up final conclusions on the potential of the Thermal Compartmentation renovation concept.

Modelling of the Net Zero Energy Town House in Toronto Using TRNSYS, and an Analysis of the Impact Using Thermal Mass

2008 ◽  
Author(s):  
Omar Siddiqui ◽  
Alan Fung ◽  
Humphrey Tse ◽  
Dahai Zhang
Keyword(s):  
Winter Season ◽  
Heating System ◽  
Building Envelope ◽  
Cold Climate ◽  
Thermal Mass ◽  
Zero Energy ◽  
Detailed Model ◽  
Net Zero Energy ◽  
Net Zero ◽  
The Impact

A detailed model of the Net Zero Energy Town House in Toronto is developed in TRNSYS, incorporating a ground source heat pump integrated with an in floor radiant heating system. In order to minimize the heating and cooling loads, the building envelope is well insulated with the exterior walls having an R-60 insulation value. Much of the work done previously on the use of thermal mass in buildings has been experimental in nature and has focussed mainly on conventional brick construction in hot climates such as Asia and Africa. This research will analyze the impact of using thermal mass with a building envelope that is highly insulated, and of a light construction, such as that used in Low Energy or Net Zero housing. Furthermore, this analysis would also evaluate the impact of using thermal mass in a cold climate such as that found in Canada. The simulations showed that, for colder climates, thermal mass can replace some of the insulation and still provide superior results. Also the impact of thermal mass was found to be more significant during the winter season than summer for Toronto.

STUDY AND ANALYSIS OF INCENTIVES FORM STATE-OF-THE-ART NET-ZERO ENERGY HOUSES

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Davoud Sahban Rafsanjani ◽  
Deepak Sharma ◽  
Tung Tran ◽  
Phoung Nguyen
Keyword(s):  
Sensitivity Analysis ◽  
Interest Rate ◽  
Financial Incentives ◽  
Energy Information Administration ◽  
Zero Energy ◽  
Net Zero Energy ◽  
Market Interest Rate ◽  
Net Zero ◽  
Government Incentives ◽  
The Impact

Over the past several years, the US Energy Information Administration (EIA) has reported that buildings consume about 40% of the total energy produced. As a consequence, buildings emit high volumes of carbon dioxide (CO2). The ever-increasing population demand implies that buildings will continue their consumption and emit gasses in high proportions if appropriate steps are not taken. Federal and state agencies offer various financial incentives to motivate homeowners to adopt energy efficient alternatives. In this research, major cash inflows and outflows are identified for Net Zero Energy Houses (NZEH) and breakeven analysis is conducted by considering that the houses are constructed in two US states having significantly different climatic conditions. The cash inflows considered in this research are from Federal and State incentive programs and savings generated by adopting NZEH. Sensitivity analysis is also conducted to determine the impact of variation in in government incentives, market interest rate, electricity rates and rate of construction. Results show that when some of the incentives are utilized the breakeven for a NZEH construction could be less than 4 years. Sensitivity analysis shows that the breakeven is most sensitive to changes in government incentives and market interest rate.

Towards a System Analysis and Integration Framework for Early Design Trades in Sustainable Building Design

2011 ◽  
Author(s):  
Joseph Piacenza ◽  
Irem Y. Tumer ◽  
Robert B. Stone ◽  
Jeffrey Knighton ◽  
Ihab Elzeyadi
Keyword(s):  
Design Process ◽  
System Analysis ◽  
Integrated Design ◽  
Building Design ◽  
Integrated Approach ◽  
Zero Energy ◽  
Design Decisions ◽  
Sustainable Building ◽  
Net Zero Energy ◽  
Net Zero

The design and implementation of net-zero energy and water commercial buildings is a high-performance alternative to traditional structures. The complexity of engineering and architectural design strategies required to achieve post-construction net-zero standing requires an integrated design approach, utilizing an array of novel sustainable building design technologies. Here, we document the schematic design timeline of the Oregon Sustainability Center (OSC), a 150,000 ft2 net-zero energy commercial “smart” building slated for construction in Portland, Oregon. The design of the OSC is constrained around guidelines described in the Living Building Challenge (LBC), a building standard for sustainable, net-zero energy and water design in modern construction. This paper identifies the primary OSC design considerations, mechanical subsystems required to achieve these goals, as well the various stakeholders associated with the project. A correlation between stakeholder influences on design decisions is mapped demonstrating the relevance of peripheral effects on the design process. The intent of this case study documentation is to work toward an integrated approach to sustainable building design based on the goal of making critical design decisions strategically during the design process, conserving both financial and temporal resources. An integrated design framework for net-zero energy and water subsystems will assist in creating replicable sustainable building designs.

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