An approach for an educational building stock energy retrofits through life-cycle cost optimization

Yilmaz Y., Koçlar Oral G.

ARCHITECTURAL SCIENCE REVIEW, vol.61, no.3, pp.122-132, 2018 (AHCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 61 Issue: 3
  • Publication Date: 2018
  • Doi Number: 10.1080/00038628.2018.1447438
  • Journal Indexes: Arts and Humanities Citation Index (AHCI), Scopus
  • Page Numbers: pp.122-132
  • Istanbul Technical University Affiliated: Yes


Improvement of energy efficiency applications through public buildings can play a leadership role demonstrating best practice in environmental sustainability for the wider population. Therefore, this study was conducted on an educational building stock in Istanbul for a year. A selected energy classification method was applied in order to designate the energy classes and related future target level assumption, which was assigned by EPBD Recast (2010). A representative base case from the stock was determined to analyse the cost-optimal levels of the energy retrofits. GenOpt optimization tool was used to apply the energy retrofit scenarios in order to achieve a set of optimum scenarios in terms of energy and cost (energy frontiers) and determine the cost-optimal energy efficiency level through a calibrated energy model. Finally, results were evaluated from energy efficiency and cost-optimal point of views.