The Experts below are selected from a list of 18786 Experts worldwide ranked by ideXlab platform
Ergo Pikas - One of the best experts on this subject based on the ideXlab platform.
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quantification of economic benefits of Renovation of apartment buildings as a basis for cost optimal 2030 energy efficiency strategies
Energy and Buildings, 2015Co-Authors: Ergo Pikas, Jarek Kurnitski, Roode Liias, Martin ThalfeldtAbstract:Abstract As a part of the 2030 energy and climate policy discussion, the Estonian energy roadmap ENMAK 2030+ is being developed to set optimal national targets for 2030. Developing such a national roadmap requires solid evidence of which scenarios with varying ambition can be developed. This study looked at economic benefits, including tax revenue, job generation, and disposable net income per 1 M€ of investment, and energy savings on both an individual and national level. In addition, economic quantification for the three scenarios was carried out. The study relied on secondary data collection with validation of the data through a sample analysis and interviews with Project stakeholders. The main findings show that in all 17 jobs per 1 M€ of investment in Renovation were generated per year and direct tax revenue was between 32–33%, depending on the Renovation Project. Results revealed that over a 20 year period, there are essentially two national energy policy options: both the living quality and asset value brought about by integrated Renovation at 160€/m 2 or alternatively, that brought about by non-energy efficiency repairs at 31€/m 2 . The study confirms that investment in energy efficiency is not only environmentally important but provides economic benefits on an individual and government budget level.
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quantification of economic benefits of Renovation of apartment buildings as a basis for cost optimal 2030 energy efficiency strategies
Energy and Buildings, 2015Co-Authors: Ergo Pikas, Jarek Kurnitski, Roode Liias, Martin ThalfeldtAbstract:Abstract As a part of the 2030 energy and climate policy discussion, the Estonian energy roadmap ENMAK 2030+ is being developed to set optimal national targets for 2030. Developing such a national roadmap requires solid evidence of which scenarios with varying ambition can be developed. This study looked at economic benefits, including tax revenue, job generation, and disposable net income per 1 M€ of investment, and energy savings on both an individual and national level. In addition, economic quantification for the three scenarios was carried out. The study relied on secondary data collection with validation of the data through a sample analysis and interviews with Project stakeholders. The main findings show that in all 17 jobs per 1 M€ of investment in Renovation were generated per year and direct tax revenue was between 32–33%, depending on the Renovation Project. Results revealed that over a 20 year period, there are essentially two national energy policy options: both the living quality and asset value brought about by integrated Renovation at 160€/m 2 or alternatively, that brought about by non-energy efficiency repairs at 31€/m 2 . The study confirms that investment in energy efficiency is not only environmentally important but provides economic benefits on an individual and government budget level.
Martin Thalfeldt - One of the best experts on this subject based on the ideXlab platform.
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quantification of economic benefits of Renovation of apartment buildings as a basis for cost optimal 2030 energy efficiency strategies
Energy and Buildings, 2015Co-Authors: Ergo Pikas, Jarek Kurnitski, Roode Liias, Martin ThalfeldtAbstract:Abstract As a part of the 2030 energy and climate policy discussion, the Estonian energy roadmap ENMAK 2030+ is being developed to set optimal national targets for 2030. Developing such a national roadmap requires solid evidence of which scenarios with varying ambition can be developed. This study looked at economic benefits, including tax revenue, job generation, and disposable net income per 1 M€ of investment, and energy savings on both an individual and national level. In addition, economic quantification for the three scenarios was carried out. The study relied on secondary data collection with validation of the data through a sample analysis and interviews with Project stakeholders. The main findings show that in all 17 jobs per 1 M€ of investment in Renovation were generated per year and direct tax revenue was between 32–33%, depending on the Renovation Project. Results revealed that over a 20 year period, there are essentially two national energy policy options: both the living quality and asset value brought about by integrated Renovation at 160€/m 2 or alternatively, that brought about by non-energy efficiency repairs at 31€/m 2 . The study confirms that investment in energy efficiency is not only environmentally important but provides economic benefits on an individual and government budget level.
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quantification of economic benefits of Renovation of apartment buildings as a basis for cost optimal 2030 energy efficiency strategies
Energy and Buildings, 2015Co-Authors: Ergo Pikas, Jarek Kurnitski, Roode Liias, Martin ThalfeldtAbstract:Abstract As a part of the 2030 energy and climate policy discussion, the Estonian energy roadmap ENMAK 2030+ is being developed to set optimal national targets for 2030. Developing such a national roadmap requires solid evidence of which scenarios with varying ambition can be developed. This study looked at economic benefits, including tax revenue, job generation, and disposable net income per 1 M€ of investment, and energy savings on both an individual and national level. In addition, economic quantification for the three scenarios was carried out. The study relied on secondary data collection with validation of the data through a sample analysis and interviews with Project stakeholders. The main findings show that in all 17 jobs per 1 M€ of investment in Renovation were generated per year and direct tax revenue was between 32–33%, depending on the Renovation Project. Results revealed that over a 20 year period, there are essentially two national energy policy options: both the living quality and asset value brought about by integrated Renovation at 160€/m 2 or alternatively, that brought about by non-energy efficiency repairs at 31€/m 2 . The study confirms that investment in energy efficiency is not only environmentally important but provides economic benefits on an individual and government budget level.
Helge Brattebo - One of the best experts on this subject based on the ideXlab platform.
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performing quantitative analyses towards sustainable business models in building energy Renovation Projects analytic process and case study
Journal of Cleaner Production, 2018Co-Authors: Roberta Moschetti, Helge Brattebo, Kristian Skeie, Anne Gunnarshaug LienAbstract:Abstract The building sector is responsible for several environmental impacts, as well as economic and social consequences. Hence, the adoption of energy efficiency measures in building Renovation Projects can lead to benefits to several stakeholders in a holistic sustainability perspective. However, these Projects require a gradual shift of their business models towards sustainable business models. In particular, performing quantitative sustainability analyses can help to overcome the traditional focus of business models on economic value and customers by defining wider costs and benefits for the environment and the society. This paper first provides a review of the state-of-the-art of sustainability analyses and business models for building Renovation Projects. Then, it proposes an analytic process based on the execution of quantitative sustainability examinations, as a support for the Project proposition, creation, and capture of sustainable value in a multi-stakeholder perspective. The analytic process is applied to a case study that is the energy Renovation Project of a Norwegian single-family house, and several sustainability criteria are computed for three possible scenarios that are inclusive of different energy efficiency measures. The paper's findings can be relevant for both practitioners and academics who search for new approaches to embed quantitative analyses into the business context of building energy Renovation Projects. Furthermore, the findings can represent the groundwork for the possible operationalization of sustainable business in such Projects, striving for a systematic execution of quantitative sustainability analyses as a key step towards sustainable business models.
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combining life cycle environmental and economic assessments in building energy Renovation Projects
Energies, 2017Co-Authors: Roberta Moschetti, Helge BratteboAbstract:Buildings currently play a fundamental role for the achievement of the sustainable development goals as they are responsible for several environmental, social, and economic impacts. Energy Renovation Projects of existing buildings can support the reduction of environmental impacts by leading, at the same time, to economic and social advantages. In this paper, the life cycle assessment and life cycle costing methodologies were used in a combined performance assessment applied to a case study, i.e., the energy Renovation Project of a single-family house in Norway. Several scenarios based on alternative energy efficiency measures were analyzed, and life cycle environmental and economic indicators were computed, i.e., global warming potential (GWP), cumulative energy demand (CED), and net present cost (NPC). The results demonstrated the close to negative linear regression between the environmental and economic indicators computed. However, the values of CED and GWP for the best scenarios in environmental terms were respectively 50% and 32% lower than the values of the worst scenarios, while their NPC was around 6% higher than the lowest values. The findings can be helpful in the decision-making context towards a meaningful combination of environmental and economic assessments in building energy Renovation Projects for selecting the most sustainable scenario.
Yikai Juan - One of the best experts on this subject based on the ideXlab platform.
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optimal decision model for sustainable hospital building Renovation a case study of a vacant school building converting into a community public hospital
International Journal of Environmental Research and Public Health, 2016Co-Authors: Yikai Juan, Yu-ching Cheng, Yeng Horng Perng, Daniel CastrolacoutureAbstract:Much attention has been paid to hospitals environments since modern pandemics have emerged. The building sector is considered to be the largest world energy consumer, so many global organizations are attempting to create a sustainable environment in building construction by reducing energy consumption. Therefore, maintaining high standards of hygiene while reducing energy consumption has become a major task for hospitals. This study develops a decision model based on genetic algorithms and A* graph search algorithms to evaluate existing hospital environmental conditions and to recommend an optimal scheme of sustainable Renovation strategies, considering trade-offs among minimal Renovation cost, maximum quality improvement, and low environmental impact. Reusing vacant buildings is a global and sustainable trend. In Taiwan, for example, more and more school space will be unoccupied due to a rapidly declining birth rate. Integrating medical care with local community elder-care efforts becomes important because of the aging population. This research introduces a model that converts a simulated vacant school building into a community public hospital Renovation Project in order to validate the solutions made by hospital managers and suggested by the system. The result reveals that the system performs well and its solutions are more successful than the actions undertaken by decision-makers. This system can improve traditional hospital building condition assessment while making it more effective and efficient.
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a hybrid decision support system for sustainable office building Renovation and energy performance improvement
Energy and Buildings, 2010Co-Authors: Yikai Juan, Jie WangAbstract:Abstract Energy consumption of buildings accounts for around 20–40% of all energy consumed in advanced countries. Over the last decade, more and more global organizations are investing significant resources to create sustainably built environments, emphasizing sustainable building Renovation processes to reduce energy consumption and carbon dioxide emissions. This study develops an integrated decision support system to assess existing office building conditions and to recommend an optimal set of sustainable Renovation actions, considering trade-offs between Renovation cost, improved building quality, and environmental impacts. A hybrid approach that combines A* graph search algorithm with genetic algorithms (GA) is used to analyze all possible Renovation actions and their trade-offs to develop the optimal solution. A two-stage system validation is performed to demonstrate the practical application of the hybrid approach: zero-one goal programming (ZOGP) and genetic algorithms are adopted to validate the effectiveness of the algorithm. A real-world Renovation Project is introduced to validate differences in energy performance Projected for the Renovation solution suggested by the system. The results reveal that the proposed hybrid system is more computationally effective than either ZOGP or GA alone. The system's suggested Renovation actions would provide substantial energy performance improvements to the real Project if implemented.
Roberta Moschetti - One of the best experts on this subject based on the ideXlab platform.
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performing quantitative analyses towards sustainable business models in building energy Renovation Projects analytic process and case study
Journal of Cleaner Production, 2018Co-Authors: Roberta Moschetti, Helge Brattebo, Kristian Skeie, Anne Gunnarshaug LienAbstract:Abstract The building sector is responsible for several environmental impacts, as well as economic and social consequences. Hence, the adoption of energy efficiency measures in building Renovation Projects can lead to benefits to several stakeholders in a holistic sustainability perspective. However, these Projects require a gradual shift of their business models towards sustainable business models. In particular, performing quantitative sustainability analyses can help to overcome the traditional focus of business models on economic value and customers by defining wider costs and benefits for the environment and the society. This paper first provides a review of the state-of-the-art of sustainability analyses and business models for building Renovation Projects. Then, it proposes an analytic process based on the execution of quantitative sustainability examinations, as a support for the Project proposition, creation, and capture of sustainable value in a multi-stakeholder perspective. The analytic process is applied to a case study that is the energy Renovation Project of a Norwegian single-family house, and several sustainability criteria are computed for three possible scenarios that are inclusive of different energy efficiency measures. The paper's findings can be relevant for both practitioners and academics who search for new approaches to embed quantitative analyses into the business context of building energy Renovation Projects. Furthermore, the findings can represent the groundwork for the possible operationalization of sustainable business in such Projects, striving for a systematic execution of quantitative sustainability analyses as a key step towards sustainable business models.
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combining life cycle environmental and economic assessments in building energy Renovation Projects
Energies, 2017Co-Authors: Roberta Moschetti, Helge BratteboAbstract:Buildings currently play a fundamental role for the achievement of the sustainable development goals as they are responsible for several environmental, social, and economic impacts. Energy Renovation Projects of existing buildings can support the reduction of environmental impacts by leading, at the same time, to economic and social advantages. In this paper, the life cycle assessment and life cycle costing methodologies were used in a combined performance assessment applied to a case study, i.e., the energy Renovation Project of a single-family house in Norway. Several scenarios based on alternative energy efficiency measures were analyzed, and life cycle environmental and economic indicators were computed, i.e., global warming potential (GWP), cumulative energy demand (CED), and net present cost (NPC). The results demonstrated the close to negative linear regression between the environmental and economic indicators computed. However, the values of CED and GWP for the best scenarios in environmental terms were respectively 50% and 32% lower than the values of the worst scenarios, while their NPC was around 6% higher than the lowest values. The findings can be helpful in the decision-making context towards a meaningful combination of environmental and economic assessments in building energy Renovation Projects for selecting the most sustainable scenario.