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|Title:||Efficient Solutions and Cost-Optimal Analysis for Existing School Buildings|
|Authors:||CONGEDO Paolo Maria; D'AGOSTINO DELIA; BAGLIVO Cristina; TORNESE Giuliano; ZACÀ Ilaria|
|Citation:||ENERGIES vol. 9 no. 10 p. 851|
|Type:||Articles in periodicals and books|
|Abstract:||The recast of the energy performance of buildings directive (EPBD) describes a comparative methodological framework to promote energy efficiency and establish minimum energy performance requirements in buildings at the lowest costs. The aim of the cost-optimal methodology is to foster the achievement of nearly zero energy buildings (nZEBs), the new target for all new buildings by 2020, characterized by a high performance with a low energy requirement almost covered by renewable sources. The paper presents the results of the application of the cost-optimal methodology in two existing buildings located in the Mediterranean area. These buildings are a kindergarten and a nursery school that differ in construction period, materials and systems. Several combinations of measures have been applied to derive cost-effective efficient solutions for retrofitting. The cost-optimal level has been identified for each building and the best performing solutions have been selected considering both a financial and a macroeconomic analysis. The results illustrate the suitability of the methodology to assess cost-optimality and energy efficiency in school building refurbishment. The research shows the variants providing the most cost-effective balance between costs and energy saving. The cost-optimal solution reduces primary energy consumption by 85% and gas emissions by 82%–83% in each reference building.|
|JRC Directorate:||Energy, Transport and Climate|
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