scholarly journals Workshop on Positive Energy Buildings—Definition

2021 ◽  
Vol 11 (1) ◽  
pp. 26
Author(s):  
Mia Ala-Juusela ◽  
Cristian Pozza ◽  
Jaume Salom ◽  
Iván Luque Segura ◽  
Andreas Tuerk ◽  
...  
Keyword(s):  
Built Environment ◽  
Carbon Footprint ◽  
Positive Energy ◽  
Zero Energy ◽  
Building Sector ◽  
Design Assessment ◽  
Zero Emission ◽  
Zero Energy Buildings

The building sector plays an important role in the transition to a climate-neutral society. The international interest in low, zero energy, or zero-emission buildings has grown as a potential means for this transition. A more ambitious step from zero energy buildings is the concept of Positive Energy Buildings (PEB), which are also contributing to the decarbonization of the surrounding built environment, not just minimizing their own carbon footprint. A shared PEB definition is needed in order to enable the design, assessment, and documentation of positive energy buildings. This article describes the ongoing discussions, concentrating on the most essential points.

Energy and architectural consequences of Swedish building code

2016 ◽  
Vol 5 (2) ◽  
pp. 125-142
Author(s):  
Marja Sofie Lundgren
Keyword(s):  
Architectural Design ◽  
Energy System ◽  
Building Code ◽  
Positive Energy ◽  
Zero Energy ◽  
System Boundaries ◽  
Content Type ◽  
National Implementation ◽  
Energy Aspects ◽  
Zero Energy Buildings

Purpose – The purpose of this paper is to propose building code changes that would benefit both architectural design and the potential of achieving nearly zero energy goals by analyzing the architectural implications of the energy system boundaries within the Swedish code. Design/methodology/approach – The analysis is driven by three questions that relate the national implementation of EU directive on nearly zero energy 2020 to the premises set out in the guidelines for revising the Swedish building code aiming at a performance-based regulation. A crucial part of the research is a comparative analysis of the design implications of the code to research findings in scientific articles on near-zero energy or low-energy design. Findings – The energy system boundaries in the Swedish code are steering the architectural design and energy consequences of offices towards using less heat but more electricity. The energy section is also limiting the architectural design choices by ignoring the positive energy aspects of daylight. A proposal of a new comprehensive energy section taking all architectural design related energy aspects into account is presented, in order to support design of nearly zero energy buildings. Practical implications – A building code that relates the energy system boundaries to form will help integrated design choices that are more likely to support the strive towards nearly zero energy buildings. Originality/value – The paper reveals the design implication of the Swedish energy section to be counterproductive regarding energy efficiency as well as limiting architectural design choices.

scholarly journals Advances Toward a Net-Zero Global Building Sector

2020 ◽  
Vol 45 (1) ◽  
pp. 227-269 ◽  
Author(s):  
Diana Ürge-Vorsatz ◽  
Radhika Khosla ◽  
Rob Bernhardt ◽  
Yi Chieh Chan ◽  
David Vérez ◽  
...  
Keyword(s):  
New York ◽  
Building Materials ◽  
Embodied Energy ◽  
Zero Energy ◽  
Building Sector ◽  
Zero Energy Building ◽  
Recent Advances ◽  
Net Zero ◽  
The World ◽  
Zero Energy Buildings

The building sector is responsible for 39% of process-related greenhouse gas emissions globally, making net- or nearly-zero energy buildings pivotal for reaching climate neutrality. This article reviews recent advances in key options and strategies for converting the building sector to be climate neutral. The evidence from the literature shows it is possible to achieve net- or nearly-zero energy building outcomes across the world in most building types and climates with systems, technologies, and skills that already exist, and at costs that are in the range of conventional buildings. Maximizing energy efficiency for all building energy uses is found as central to net-zero targets. Jurisdictions all over the world, including Brussels, New York, Vancouver, and Tyrol, have innovated visionary policies to catalyze themarket success of such buildings, with more than 7 million square meters of nearly-zero energy buildings erected in China alone in the past few years. Since embodied carbon in building materials can consume up to a half of the remaining 1.5°C carbon budget, this article reviews recent advances to minimize embodied energy and store carbon in building materials.

scholarly journals State-of-the-Art Review of Positive Energy Building and Community Systems

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 5046
Author(s):  
Gokula Manikandan Senthil Kumar ◽  
Sunliang Cao
Keyword(s):  
Renewable Energy ◽  
State Of The Art ◽  
Energy Systems ◽  
Energy System ◽  
Positive Energy ◽  
Zero Energy ◽  
New Energy ◽  
Economic Perspectives ◽  
The Impact ◽  
Zero Energy Buildings

A positive energy system that produces more renewable energy than its demand while ensuring appropriate comfort levels is an excellent path towards increasing the portion of renewable energy, reducing carbon emission, and increasing the energy system’s overall performance. In particular, it has been believed as step forward towards zero energy systems. Recent progress in positive energy building and community levels is gaining interest among different stakeholders. However, an inadequate understanding of the positive energy system is widely noticed in many projects, and a shortage of standard details on the positive energy system still prevails in the research community. Therefore, a state-of-the-art review of positive energy building and community is conducted in this paper. Firstly, this paper begins with the definitions and concepts of positive energy buildings and communities. Secondly, it comprehensively describes the energy supplies, demands, indicators, storage, energy management, roles of stakeholders, and bottlenecks of positive energy systems. Thirdly, the main differences between positive energy buildings and communities are summarized. Fourthly, the impact of smart energy grids and new energy vehicles on the positive energy buildings and communities is derived. As a conclusion, this paper shows that even though all the energy-efficient buildings such as passive buildings, nearly zero energy buildings, zero energy buildings, positive energy buildings look like an up-trending scale of renewable penetration, considerable differences are visible among all, and the same thing applies to the community level. Furthermore, considerable differences exist when comparing between positive buildings and communities regarding both the technical and economic perspectives.

scholarly journals Legal challenges in the implementation of Nearly Zero Energy Buildings (nZEB) in Spain

2017 ◽  
Vol 2 (1) ◽  
pp. 2
Author(s):  
Javier Cárcel-Carrasco ◽  
Elisa Peñalvo-López ◽  
Isolda Morcillo
Keyword(s):  
Social Context ◽  
Value Added ◽  
Market Penetration ◽  
Zero Energy ◽  
Building Sector ◽  
Legal Challenges ◽  
New Buildings ◽  
The Eu ◽  
Training Market ◽  
Zero Energy Buildings

<p>Construction activities that include renovation work and energy retrofits add almost twice as much value as the construction of new buildings, and Small and Medium-sized Enterprises (SMEs) contribute more than 70% of the value added in the EU building sector. This article analyses the legislation associated to Nearly Zero Energy Buildings (nZEB) in Spain in order to identify the factors that will leverage their massive implementation. The paper is organized in three main sections: first one, it describes the geographical and social context of nZEB in Spain, then legislative requirements and policies are analysed; and finally, it identifies the training market penetration for nZEB.</p>

scholarly journals Positive Energy Building Definition with the Framework, Elements and Challenges of the Concept

Energies ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 6260
Author(s):  
Mia Ala-Juusela ◽  
Hassam ur Rehman ◽  
Mari Hukkalainen ◽  
Francesco Reda
Keyword(s):  
Renewable Energy ◽  
Energy Demand ◽  
Positive Energy ◽  
Zero Energy ◽  
Building Site ◽  
Operational Conditions ◽  
Challenges And Opportunities ◽  
Final Energy Demand ◽  
Zero Energy Buildings

Buildings account for 36% of the final energy demand and 39% of CO2 emissions worldwide. Targets for increasing the energy efficiency of buildings and reducing building related emissions is an important part of the energy policy to reach the Paris agreement within the United Nations Framework Convention on Climate Change. While nearly zero energy buildings are the new norm in the EU, the research is advancing towards positive energy buildings, which contribute to the surrounding community by providing emission-free energy. This paper suggests a definition for positive energy building and presents the framework, elements, and challenges of the concept. In a positive energy building, the annual renewable energy production in the building site exceeds the energy demand of the building. This increases two-way interactions with energy grids, requiring a broader approach compared to zero energy buildings. The role of energy flexibility grows when the share of fluctuating renewable energy increases. The presented framework is designed with balancing two important perspectives: technical and user-centric approaches. It can be accommodated to different operational conditions, regulations, and climates. Potential challenges and opportunities are also discussed, such as the present issues in the building’s balancing boundary, electric vehicle integration, and smart readiness indicators.

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