District Heating Expansion Potential with Low-Temperature and End-Use Heat Savings

District heating has the potential to play a key role in the transition towards a renewable energy system. However, the development towards reduced heat demands threatens the feasibility of district heating. Despite this challenge, opportunity exists in the form of fourth generation district heating...

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Main Authors: Steffen Nielsen, Lars Grundahl
Format: Article
Language:English
Published: MDPI AG 2018-01-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/11/2/277
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author Steffen Nielsen
Lars Grundahl
author_facet Steffen Nielsen
Lars Grundahl
author_sort Steffen Nielsen
collection DOAJ
description District heating has the potential to play a key role in the transition towards a renewable energy system. However, the development towards reduced heat demands threatens the feasibility of district heating. Despite this challenge, opportunity exists in the form of fourth generation district heating, which operates at lower temperatures and enables better renewable integration. This article investigates this challenge by examining the district heating potential within three scenarios: The first is a reference scenario with current heat demand and temperatures, the second includes heat demand savings and the third includes reduced grid temperatures in addition to heat savings. To examine the scenarios, two models are developed. The first is a heat atlas model, in which heat demands are mapped on an address level. The second model assesses district heating expansion potentials based on economic costs. The models are applied using an example case of The Northern Region of Denmark. The article concludes that the district heating potential is highest in the reference scenario. When heat savings are introduced, district heating expansions, in most cases, will not be feasible. Introducing low-temperature district heating modestly increases the feasible expansion potential. This general conclusion is highly dependent on the specific system examined.
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spelling doaj.art-53c1082395754a85bfffb0b97d5a80ed2022-12-22T02:55:19ZengMDPI AGEnergies1996-10732018-01-0111227710.3390/en11020277en11020277District Heating Expansion Potential with Low-Temperature and End-Use Heat SavingsSteffen Nielsen0Lars Grundahl1Department of Development and Planning, Aalborg University, Rendsburggade 14, DK-9000 Aalborg, DenmarkDepartment of Development and Planning, Aalborg University, A. C. Meyers Vænge 15, DK-2450 København SV, DenmarkDistrict heating has the potential to play a key role in the transition towards a renewable energy system. However, the development towards reduced heat demands threatens the feasibility of district heating. Despite this challenge, opportunity exists in the form of fourth generation district heating, which operates at lower temperatures and enables better renewable integration. This article investigates this challenge by examining the district heating potential within three scenarios: The first is a reference scenario with current heat demand and temperatures, the second includes heat demand savings and the third includes reduced grid temperatures in addition to heat savings. To examine the scenarios, two models are developed. The first is a heat atlas model, in which heat demands are mapped on an address level. The second model assesses district heating expansion potentials based on economic costs. The models are applied using an example case of The Northern Region of Denmark. The article concludes that the district heating potential is highest in the reference scenario. When heat savings are introduced, district heating expansions, in most cases, will not be feasible. Introducing low-temperature district heating modestly increases the feasible expansion potential. This general conclusion is highly dependent on the specific system examined.http://www.mdpi.com/1996-1073/11/2/277geographical information systemsheat demanddistrict heatingheat planninglow-temperature district heating
spellingShingle Steffen Nielsen
Lars Grundahl
District Heating Expansion Potential with Low-Temperature and End-Use Heat Savings
Energies
geographical information systems
heat demand
district heating
heat planning
low-temperature district heating
title District Heating Expansion Potential with Low-Temperature and End-Use Heat Savings
title_full District Heating Expansion Potential with Low-Temperature and End-Use Heat Savings
title_fullStr District Heating Expansion Potential with Low-Temperature and End-Use Heat Savings
title_full_unstemmed District Heating Expansion Potential with Low-Temperature and End-Use Heat Savings
title_short District Heating Expansion Potential with Low-Temperature and End-Use Heat Savings
title_sort district heating expansion potential with low temperature and end use heat savings
topic geographical information systems
heat demand
district heating
heat planning
low-temperature district heating
url http://www.mdpi.com/1996-1073/11/2/277
work_keys_str_mv AT steffennielsen districtheatingexpansionpotentialwithlowtemperatureandenduseheatsavings
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