Exploring residential energy efficiency measures and distribution of renewable energy generation through sector interactions: a case study in Visby, Sweden

Abstract Increased use of cogeneration in district heating (DH) systems is important in the pursuit towards a low-carbon society, particularly in light of the ongoing electrification across multiple sectors. Apart from reducing CO2 emissions, cogeneration also contributes to additional income for th...

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Main Authors: Shahnaz Amiri, Vlatko Milić
Format: Article
Language:English
Published: SpringerOpen 2024-11-01
Series:Sustainable Energy Research
Subjects:
Online Access:https://doi.org/10.1186/s40807-024-00132-0
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author Shahnaz Amiri
Vlatko Milić
author_facet Shahnaz Amiri
Vlatko Milić
author_sort Shahnaz Amiri
collection DOAJ
description Abstract Increased use of cogeneration in district heating (DH) systems is important in the pursuit towards a low-carbon society, particularly in light of the ongoing electrification across multiple sectors. Apart from reducing CO2 emissions, cogeneration also contributes to additional income for the DH system owner. Nonetheless, it is important to be aware that the economic and environmental performance of DH systems are directly connected to the energy use within DH networks. This research investigates sector interactions associated with the introduction of a biomass combined heat and power (CHP) and residential energy renovation according to (life cycle cost) LCC optimum and Swedish energy targets, with a focus on CO2 emissions and the system cost of the energy utility company. The study object consists of a DH system in Visby, Sweden, and 920 historic residential building undergoing energy renovation. The results show a profitability of 905–915 MSEK for the DH system with the integration of a CHP. Global CO2 emissions decrease by 32.6–33.1 ktonnes/year, 9.0–9.2 ktonnes/year, and 19.9–20.1 ktonnes/year, for marginal coal-condensing power (limited biofuel), natural gas combined cycle power (limited biofuel), and European average production, respectively. In addition, sensitivity analyses confirm the benefits of cogeneration related to both economics and CO2 emissions based on changes in key parameters of the DH system.
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spelling doaj-art-43535e85515c48cab9533b4ecc962d1a2025-08-20T02:22:30ZengSpringerOpenSustainable Energy Research2731-92372024-11-0111111410.1186/s40807-024-00132-0Exploring residential energy efficiency measures and distribution of renewable energy generation through sector interactions: a case study in Visby, SwedenShahnaz Amiri0Vlatko Milić1Division of Energy Systems, Department of Management and Engineering, Linköping UniversityDivision of Energy Systems, Department of Management and Engineering, Linköping UniversityAbstract Increased use of cogeneration in district heating (DH) systems is important in the pursuit towards a low-carbon society, particularly in light of the ongoing electrification across multiple sectors. Apart from reducing CO2 emissions, cogeneration also contributes to additional income for the DH system owner. Nonetheless, it is important to be aware that the economic and environmental performance of DH systems are directly connected to the energy use within DH networks. This research investigates sector interactions associated with the introduction of a biomass combined heat and power (CHP) and residential energy renovation according to (life cycle cost) LCC optimum and Swedish energy targets, with a focus on CO2 emissions and the system cost of the energy utility company. The study object consists of a DH system in Visby, Sweden, and 920 historic residential building undergoing energy renovation. The results show a profitability of 905–915 MSEK for the DH system with the integration of a CHP. Global CO2 emissions decrease by 32.6–33.1 ktonnes/year, 9.0–9.2 ktonnes/year, and 19.9–20.1 ktonnes/year, for marginal coal-condensing power (limited biofuel), natural gas combined cycle power (limited biofuel), and European average production, respectively. In addition, sensitivity analyses confirm the benefits of cogeneration related to both economics and CO2 emissions based on changes in key parameters of the DH system.https://doi.org/10.1186/s40807-024-00132-0Renewable energyEnergy efficiency measuresCombined heat and powerDistrict heatingSector interaction
spellingShingle Shahnaz Amiri
Vlatko Milić
Exploring residential energy efficiency measures and distribution of renewable energy generation through sector interactions: a case study in Visby, Sweden
Sustainable Energy Research
Renewable energy
Energy efficiency measures
Combined heat and power
District heating
Sector interaction
title Exploring residential energy efficiency measures and distribution of renewable energy generation through sector interactions: a case study in Visby, Sweden
title_full Exploring residential energy efficiency measures and distribution of renewable energy generation through sector interactions: a case study in Visby, Sweden
title_fullStr Exploring residential energy efficiency measures and distribution of renewable energy generation through sector interactions: a case study in Visby, Sweden
title_full_unstemmed Exploring residential energy efficiency measures and distribution of renewable energy generation through sector interactions: a case study in Visby, Sweden
title_short Exploring residential energy efficiency measures and distribution of renewable energy generation through sector interactions: a case study in Visby, Sweden
title_sort exploring residential energy efficiency measures and distribution of renewable energy generation through sector interactions a case study in visby sweden
topic Renewable energy
Energy efficiency measures
Combined heat and power
District heating
Sector interaction
url https://doi.org/10.1186/s40807-024-00132-0
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