Selection of Energy Efficiency Projects for Dwelling Stock to Achieve Optimal Project Portfolio at the Regional Level by Applying LCC. An Analysis Based on Three Scenarios in the South-Muntenia Region of Romania

Cezar-Petre Simion,Ciprian Nicolescu,Mihai Cioc

doi:10.3390/en11061586

Cezar-Petre Simion, Ciprian Nicolescu + Show 1 more

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https://doi.org/10.3390/en11061586

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Journal: Energies	Publication Date: Jun 17, 2018
Citations: 5	License type: CC BY 4.0

Affiliation: Bucharest University of Economic Studies

Abstract

The joint action of the European directives and the national strategies make the issue of energy efficiency of the dwelling stock one of the main research directions in the field. The purpose of this study is to create and apply a methodology for developing the portfolio of projects to increase the energy efficiency of the dwelling stock at a regional level through the use of life cycle cost. For this, eight types of energy efficiency improvement projects and three implementation scenarios were selected for the dwelling stock. For each project life cycle cost was determined in each county of the South-Muntenia region based on the estimation of the energy requirements, the costs of implementation and exploitation. In all three scenarios, the P3 Energy Efficiency Project (the reference building without shutters under the Romanian normative) had minimal life cycle cost in most counties in the region. For each scenario the life cycle cost was determined for the optimal portfolio of projects at regional level. The maximum scenario was chosen as the optimal scenario for regional implementation.

Highlights

Energy efficiency has become one of the most important research topics in the current era in terms of its multiple approaches: ecological, technological, economic or social
Selection of the most representative types of projects for increasing the energy efficiency of the dwellings stock that can be achieved in the South-Muntenia region and their implementation scenarios; Determining the type of project for increasing the energy efficiency of the dwellings stock that can be applied at the level of each county of South-Muntenia region on the basis of the life cycle cost related to the application of each project variant at regional level; Determining the type of project to increase the energy efficiency of the dwellings stock that can be applied at regional level; Establishing the optimal implementation scenario at regional level
The research carried out had as initial results the determination of the energy requirement for the reference building in the case of the implementation of each of the eight studied projects, the calculation of the cost related to the implementation of the eight projects for increasing the energy efficiency of the dwelling stock, the determination of the operating cost of the reference building for the eight project variants and the calculation of the area rehabilitated annually in each scenario for each county of the South-Muntenia region

Summary

Introduction

Energy efficiency has become one of the most important research topics in the current era in terms of its multiple approaches: ecological, technological, economic or social. It is regarded as a key economic and social development resource [1] and as one of the most effective ways to achieve climate change mitigation [2]. In the European Union, buildings are the most important element of energy efficiency policies. They account for almost 40% of final energy use at the EU level. It is necessary to implement the requirements of Directive 2010/31/EU on the energy performance of buildings [3]

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