Shifting from net-zero to net-positive energy buildings

Cole, Raymond J.; Fedoruk, Laura

doi:10.1080/09613218.2014.950452

Cited by 68 publications

(51 citation statements)

References 25 publications

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“…The approach taken in the IDEAS project and its sister projects is in line with recent research which explores the notion of net-positive energy by viewing the role of a building in adding value to its context and systems of which it is part [1]. This moves beyond the notion that individual buildings are the most effective unit to make significant energy gains [2].…”

Section: Introductionmentioning

confidence: 88%

“…A key issue, therefore, is how new buildings fit into and work with the existing building stock" [2]. As such the concept of net-positive energy demands that the role of buildings is reconceptualised to see them as adding value to the context and systems of which they are a part [1]. This in turn demands that debate is moved from defining energy positive buildings to defining energy positive building contexts and their energy infrastructures.…”

Section: Definition Of Energy Positive Neighbourhoodsmentioning

confidence: 99%

“…This project is a response to a call for research into the development of ICTs for Energy Positive Neighbourhoods (EPNs) and is part of a cluster of current smart city projects 1 . The main aim of the IDEAS project is to develop and validate the technologies and business models required for the cost effective and incremental implementation of EPNs.…”

Section: Introductionmentioning

confidence: 99%

“…This moves beyond the notion that individual buildings are the most effective unit to make significant energy gains [2]. In doing so it highlights the importance of extending the system's limits of energy analysis, the need for new metrics and methods to evaluate success, and advocates a shift in the framing of energy issues from a one-year timeframe to life cycle approaches [1].…”

Section: Introductionmentioning

confidence: 99%

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Defining and operationalising the concept of an energy positive neighbourhood

Ala-Juusela

Crosbie

Hukkalainen

2016

Energy Conversion and Management

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University campuses, residential neighbourhoods and other urban areas have different needs for energy solutions. The formulation and comparison of these solutions demands welldefined concepts and robust decision support tools. This paper proposes the following definition: "Energy positive neighbourhoods are those in which the annual energy demand is lower than annual energy supply from local renewable energy sources. Short-term imbalances … are corrected with national energy supplies. The aim is to provide a functional, healthy, user friendly environment with as low energy demand and little environmental impact as possible." Key performance indicators are proposed along with an 'energy positivity label'. A decision support tool for the long term planning of neighbourhood energy solutions is described which is currently being used to evaluate a university campus in France and a residential neighbourhood in Finland. The research presented extends the limits of current approaches to energy analyses from individual buildings to neighbourhood level. KEYWORDSEnergy positive neighbourhood, key performance indicators, energy positivity label, urban planning decision support tool, university campus, residential neighbourhood.

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Section: Introductionmentioning

confidence: 88%

Section: Definition Of Energy Positive Neighbourhoodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Defining and operationalising the concept of an energy positive neighbourhood

Ala-Juusela

Crosbie

Hukkalainen

2016

Energy Conversion and Management

View full text Add to dashboard Cite

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“…The analyses presented here are exclusive of embodied energy impacts related to the reviewed systems, and are within boundaries set by the legal Finnish regulatory framework. Nevertheless, the results obtained could be used as a reference for comparison in the design of buildings in this country, with aims to reach net-zero or even net-positive buildings (Cole & Fedoruk, 2015). Moreover, these results may serve as benchmark for the development and integration of heat and electricity prosumers in other Nordic countries.…”

Section: Introductionmentioning

confidence: 98%

Energy and exergy analysis of prosumers in hybrid energy grids

Delgado

Cao

Hasan

et al. 2017

Building Research & Information

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Surplus energy can be a recurrent phenomenon in zero-energy buildings (ZEBs) with onsite generation systems, usually resulting in the export of excess electricity. Yet, converting electricity into heat and exporting it could improve the overall energy balance. This study analyses the energy and exergy performance of a Finnish nearly zero-energy building (nZEB) as a heat and electricity prosumer, and proposes alternative energy topologies to improve energy and exergy levels, primary energy demand and CO 2 emissions. The results show that increasing the installed capacity of the photovoltaic systems would lead to zero energy, exergy, emissions and a balance of primary energy. However, by instead using the surplus electricity to drive a heat pump and export heat, the currently installed capacity would lead to a net energy export of over 4000 kWh/a. Thus, energy conversion could significantly enhance the contribution from heat and electricity prosumers to smart energy grids, though not without affecting other criteria. Two management strategies arise: favouring heat export improves the net energy and CO 2 emissions reduction but lessens the net exergy, while favouring electricity export improves the net exergy and primary energy reduction. The findings highlight that energy conversion can enhance nZEB performance and its exchange with hybrid grids.

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Economic, social, and environmental aspects of Positive Energy Districts—A review

Casamassima

Bottecchia

Bruck

et al. 2022

WIREs Energy & Environment

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The concept of Positive Energy Districts (PEDs), introduced in the Strategic Energy Technology Plan, is one of the fundamental approaches for a successful, clean and sustainable urbanization by 2025. According to the European Commission, a PED is a set of buildings where the community controls the energy flows and aims at a net positive energy balance over a year by utilizing renewable energy sources. There are a plethora of concepts similar to PEDs, such as Positive Energy Community, Net Zero Energy Neighborhood, Plus Energy Districts, that create a need to establish a structure that can facilitate the definition, development, and precise identification of PEDs. Thus, this paper aims to fill this research gap by comparing these and other related concepts through a critical literature review based on three pillars composing the triangle of sustainability: economic, social and environmental. By doing this, the paper aims to determine the connections between these similar concepts, homogenize the use of terms and avoid the issue of repetitions, which can help draw lessons learnt from other energy-savings concepts. This study shows how PEDs and Nearly Zero Energy Communities have similar bases, aims and omissions. They diverge in a few key concepts, which can become learning points for PEDs.

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Shifting from net-zero to net-positive energy buildings

Cited by 68 publications

References 25 publications

Defining and operationalising the concept of an energy positive neighbourhood

Defining and operationalising the concept of an energy positive neighbourhood

Energy and exergy analysis of prosumers in hybrid energy grids

Economic, social, and environmental aspects of Positive Energy Districts—A review

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