Potential impact evaluation: an<i>ex ante</i>evaluation of the Mediterranean buildings energy efficiency strategy

Cubí, Eduard; Ortiz, Joana; Salom, Jaume

doi:10.1080/14786451.2013.796945

Cited by 9 publications

(4 citation statements)

References 2 publications

(1 reference statement)

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“…The building sector is one of the largest energy consumers in the EU area [2] and the energy saving potential of existing buildings is significant compared to new buildings. The current building refurbishment rate within the EU is rather low 0.5-1.2% in a year, depending on the region [3]. This refurbishment rate includes all refurbishments, even those that do not include energysaving measures.…”

Section: Introductionmentioning

confidence: 99%

Cost optimal energy performance renovation measures in a municipal service building in a cold climate

et al. 2019

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The energy saving potential of existing buildings is significant compared to new buildings in the EU region. To reduce significantly the CO2 emissions of buildings, energy efficiency of old buildings need to be improved. Aim of this study is to determine cost-optimal solutions for energy renovation and renewable energy production systems for an old existing service building. The example building of this study is a residence for elderly people, which was built in 1955 and located in Finland. This study was carried out by a dynamic building simulation tool IDA-ICE and multi objective optimization tool MOBO. The cost-optimal renovation concepts were determined from over 2.6 billion renovation measure combinations to minimize both target energy consumption and life-cycle costs over 20 years. The results show that air-to-water heat pump is more cost effective heating system for the studied building than district heating from the building owner point of view. Improving thermal insulation level of the external walls from the original level is not the most cost-effective option to improve the energy efficiency of the building. Instead of that, for example, installation of PV and solar thermal systems are recommended in all the cost-optimal solutions regardless of the target energy consumption level.

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Section: Introductionmentioning

confidence: 99%

Cost optimal energy performance renovation measures in a municipal service building in a cold climate

et al. 2019

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“…To achieve this, the energy performance of both new and existing buildings must improve rapidly. The current building refurbishment rate within the EU is rather low: 0.5-1.2% in a year, depending on the region (Cubi, Ortiz, and Salom 2014). The refurbishment rate includes all refurbishments, even those that do not include energy saving measures.…”

Section: Introductionmentioning

confidence: 99%

Cost-optimal energy performance measures in a new daycare building in cold climate

Sankelo

Jokisalo

Nyman³

et al. 2018

International Journal of Sustainable Energy

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New municipal service buildings must be energy effective, and cost-optimality is one of the criteria for selecting the suitable energy performance improvement measures. A daycare building in a cold climate was studied by means of simulation-based, multiobjective optimization. Using a genetic algorithm, both target energy use and life-cycle cost of the selected measures were minimized. It was found that extensive insulation of the building envelope is not a cost-optimal method to reduce the daycare building energy use. Improving energy efficiency of the ventilation system, utilizing solar energy on-site and employing a light control strategy are preferable ways of improving the building energy performance. Ground-source heat pump is a more cost-optimal heating system for the daycare building than district heating. The cost-optimal sizing of the heat pump is small, only 28% of the required maximum heating power.

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“…As the existing residential sector is one with greater potential for energy savings, it is one, which faces more barriers too. In Catalonia, the energy renovation rate is around 0.2% dwellings per year (Cubí et al, 2013), which represents a low fraction of the building stock. The promotion of the energy renovation of buildings is needed, ensuring that available measures are cost-effective in a long term as well as, they improve the comfort of the users.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Energy Renovation of Residential Sector in Catalonia Based on Comfort, Energy And Costs.

Ortiz¹,

Casas²,

Salom³

et al. 2015

Building Simulation Conference Proceedings

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The paper describes OptiHab study, done in the framework of the MARIE project. The objective of OptiHab is to provide technical and economic information to optimize the energy renovation of residential sector in Catalonia, ensuring the comfort of the users. The information of the study gives the criteria to develop regional strategies and policies to improve the energy efficiency of the residential sector. The method used and the results of one building typologies are presented. In addition, the results have been used to propose a subsidy plan for the energy renovation of buildings based on costeffective measures.

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Potential impact evaluation: anex anteevaluation of the Mediterranean buildings energy efficiency strategy

Cited by 9 publications

References 2 publications

Cost optimal energy performance renovation measures in a municipal service building in a cold climate

Cost optimal energy performance renovation measures in a municipal service building in a cold climate

Cost-optimal energy performance measures in a new daycare building in cold climate

Optimization of Energy Renovation of Residential Sector in Catalonia Based on Comfort, Energy And Costs.

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