Optimized step-by-step modernization of residential heating systems: a multi-period investment strategy for energy efficiency and cost reduction

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F26%3A0200958" target="_blank" >RIV/00216305:26210/26:0200958 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S245190492500589X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S245190492500589X?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tsep.2025.103799" target="_blank" >10.1016/j.tsep.2025.103799</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optimized step-by-step modernization of residential heating systems: a multi-period investment strategy for energy efficiency and cost reduction

Popis výsledku v původním jazyce

The modernization of residential heating systems is a critical step towards achieving energy efficiency, sustainability, and economic feasibility in the built environment. This study presents an optimized approach for selecting and implementing renovation actions in building heating systems in a step-by-step sequence, considering economic, environmental, and energy performance indicators. The proposed method enables efficient allocation of investment funds over time, ensuring maximum financial and energy savings while minimizing upfront costs. The methodology was applied to a case study of five buildings in Ukraine, where different renovation scenarios were analysed. The results demonstrate that scenario S3, which involves optimized multi-period investment planning, is more financially efficient than both lump-sum investment (scenario S1) and a non-optimized step-by-step approach (scenario S2). For individual buildings, S3 reduces investment costs by 186,000 EUR while extending the payback period by 0.2 years, leading to an overall efficiency gain of 148,000 EUR. When applied to a group of buildings, S3 achieves higher cost savings of 330,000 EUR (20 %) with a payback extension of 0.4 years, yielding an efficiency gain of 234,000 EUR (14 %) compared to S1. These findings underscore the advantages of coordinated group modernization over individual building renovations, emphasizing the importance of structured, staged investment strategies in optimizing resource allocation and maximizing economic returns in residential heating system upgrades.

Název v anglickém jazyce

Optimized step-by-step modernization of residential heating systems: a multi-period investment strategy for energy efficiency and cost reduction

Popis výsledku anglicky

The modernization of residential heating systems is a critical step towards achieving energy efficiency, sustainability, and economic feasibility in the built environment. This study presents an optimized approach for selecting and implementing renovation actions in building heating systems in a step-by-step sequence, considering economic, environmental, and energy performance indicators. The proposed method enables efficient allocation of investment funds over time, ensuring maximum financial and energy savings while minimizing upfront costs. The methodology was applied to a case study of five buildings in Ukraine, where different renovation scenarios were analysed. The results demonstrate that scenario S3, which involves optimized multi-period investment planning, is more financially efficient than both lump-sum investment (scenario S1) and a non-optimized step-by-step approach (scenario S2). For individual buildings, S3 reduces investment costs by 186,000 EUR while extending the payback period by 0.2 years, leading to an overall efficiency gain of 148,000 EUR. When applied to a group of buildings, S3 achieves higher cost savings of 330,000 EUR (20 %) with a payback extension of 0.4 years, yielding an efficiency gain of 234,000 EUR (14 %) compared to S1. These findings underscore the advantages of coordinated group modernization over individual building renovations, emphasizing the importance of structured, staged investment strategies in optimizing resource allocation and maximizing economic returns in residential heating system upgrades.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Thermal Science and Engineering Progress

ISSN

2451-9057

e-ISSN

2451-9049

Svazek periodika

64

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

—

Kód UT WoS článku

001523363800001

EID výsledku v databázi Scopus

2-s2.0-105009167145