Solar Thermal Applications in Urban Environmensts
August 2017 - PDF 2.16MB - Posted: 2018-06-15
By: Franz Mauthner

Examples and case study on solar thermal applications in urban environments

Influence of Sector Coupling on Solar Thermal Energy
A scenario analysis of the German energy system
June 2018 - PDF 0.9MB - Posted: 2018-06-15
By: Sebastian Herkel, Andreas Palzer

This report presents the results of a scenario study on the potential role of solar thermal in future energy systems in Germany. This work is applied in the IEA task 52 Solar Heat and Energy Economics in Urban Environments. In the framework of IEA-SHC Task 52 the (possible future) role of solar thermal energy utilization in urban environments is investigated more deeply. Main focus is on the utilization of solar energy by means of active technologies such as solar thermal collectors.This report presents the scenario results calculated based on the methodology in Subtask A of the IEA task 52 Solar Heat and Energy Economics in Urban Environments.

Cost Curves for Heat Savings in Buildings
Calculation of costs and potentials for heat savings in existing buildings through the refurbishment of the building surface for various countries in Europe until 2050
June 2018 - PDF 0.79MB - Posted: 2018-06-15
By: Marcus Hummel

This report shows the underlying data on existing buildings, the assumptions regarding future developments of the building stocks, the costs and energetic effects of various renovation measures on different parts of the building shell, the methodology for calculating the cost curves for heat savings in buildings, the resulting cost curves for the countries under investigation including their sensitivity to important input assumptions, and conclusions as well as discussion points that resulted from this work.

The Role of Solar thermal in Future Energy Systems
Country Cases for Germany, Italy, Austria and Denmark
November 2017 - PDF 3.71MB - Posted: 2017-11-30
By: Brian Vad Mathiesen, Kenneth Hansen

This report deals with solar thermal technologies and investigates possible roles for solar thermal in future energy systems for four national energy systems; Germany, Austria, Italy and Denmark. The project period started in January 2014 and finished by October 2017. This report is based on research performed by Aalborg University with the collaboration of Subtask A project partners Sebastian Herkel and Andreas Palzer from Fraunhofer ISE, Marcus Hummel and Richard Büchele from the Technical University of Vienna as well as Bengt Perers and Simon Furbo from the Technical University of Denmark. Additional collaboration with other subtask project partners has contributed to enhancing the methodology and reporting of the research. Contributions from Rasmus Lund from Aalborg University are also appreciated.

Cost Performance for Small Smart Solar Thermal Systems Outside District Heating Networks
August 2017 - PDF 0.59MB - Posted: 2018-06-15
By: Bengt Perers, Simon Furbo, Elsa Andersen, Janne Dragsted

Other than for solar district heating, solar thermal systems attached to individual buildings face a significant market downturn all over Europe for several years already. On the other hand, every solar thermal technology enables CO₂-free heat supply and hence has the potential to contribute to future low-carbon energy systems in cities.

In this respect, this report aims to critically reflect on past solar thermal developments on the one hand side and to show opportunities and innovative ideas for future product developments in the field of small smart solar combi systems on the other side. The work is based on 40 years of research and development experience at Danish Technical University (DTU) and driven by the conviction that there is large potential for solar thermal applications in urban environments also outside of district heating supply areas

Urban energy concept Solar district heating Methodology and tools
Technical Report of IEA SHC Task 52, subtask B - Methodologies, Tools and Case studies for Urban Energy concepts
June 2018 - PDF 1.04MB - Posted: 2018-06-15
By: Martin Joly (Sorane, CH), Paul Bourdoukan (Sorane, CH), Jan-Bleicke Eggers (ISE, DE), Martin Andersen (SERC, SE), Chris Bales (SERC, SE), Gabriel Ruiz (CREM, CH), Daniel Trier (Planenergi, DK), Christine Weber (BKW, CH), Sebastian Herkel (ISE, DE)
Editor: Martin Joly

This report summaries the different achievements of the subtask B focused on Methodologies, Tools and Case studies for Urban Energy concepts. In the first chapter, we will present the preliminary studies made on existing tools and on the assessment of the needs of urban actors. These studies were used as a base to build a new methodology. In the second chapter, we present a methodology to guide stakeholders in their different choices when projecting a solar district heating in urban environment. The case studies analysis is presented in a the Case Study report of Task 52

Solar District Heating Trends and Possibilities
Characteristics of Ground-Mounted Systems for Screening of Land Use Requirements and Feasibility
March 2018 - PDF 5.98MB - Posted: 2018-06-15
By: Daniel Trier, Federico Bava, Christian Kok, Skov Simon, Stendorf Sørensen

To reach a high solar fraction for a given town, a large number of roof mounted solar collector systems will in general be required, as the size of each system is limited by the roof area available. Given a certain area required to reach a specific solar fraction, a large ground-mounted system will often have a much lower total cost due to economy of scale. Hence, it is relevant to determine whether it would be more feasible to place large solar collector fields outside a town and supply heat to the district heating (DH) network through a transmission pipe, rather than to install many smaller solar heating systems on rooftops within the town. The analysis shows that the economies of scale of groundmounted solar collector systems can normally compensate for the extra costs of transmission pipes, as long as these are not too long, so that the resulting total cost of solar heat can become acceptable. This report aims at answering a few key questions regarding the development of largescale solar thermal systems supplying DH networks, which will be referred to as “solar district heating” (SDH): We have seen a strong SDH development in Denmark in the past decade – what are the characteristics of the Danish SDH systems? and Would it be possible to see a similar development in other countries?

Technology and Demonstrators
Technical Report Subtask B – Part B3, Technical Report Subtask C – Part C2
August 2017 - PDF 4.9MB - Posted: 2018-06-15
By: Franz Mauthner, Martin Joly

In Report C2: Analysis of best practice examples, information about built best practice examples as well as conceptual feasibility studies of solar thermal applications in urban environments is summarized. Objective is to highlight technical potentials, innovative approaches and restrictions of solar thermal applications in urban environments in a holistic energy system context on the one hand and to identify and describe lessons learned regarding applied methodologies, success factors and barriers on the other side.

Classification and Benchmarking of Solar Thermal Systems in Urban Environments
Technical Report Subtask C – Part C1
January 2016 - PDF 3.8MB - Posted: 2017-05-30
By: Franz Mauthner, Sebastian Herkel

In the present report [Deliverable C1: Classification and benchmarking of solar thermal systems in urban environments], solar thermal system configurations suitable for applications in urban environments are identified first (chapter 4) and characterized by representative techno-economic benchmark figures from a set of best practice examples (chapter 5). Objective of this report is to provide a comprehensive data base for techno-economic (pre-) evaluations regarding the role of solar thermal in urban energy systems, especially applicable for urban planners / energy system planners without deeper theoretical solar thermal expertise.

Is Solar Thermal a Viable Solution for a Future Renewable Energy System?
December 2017 - PDF 0.13MB - Posted: 2017-12-15
Solar thermal integration might in some situations be counter-beneficial for a renewable transition, especially when considering an energy system supplied by high shares of renewable energy. This is one of the conclusions from a study performed by Aalborg University as part of SHC Task 52 on Solar Heat and Energy Economics in Urban Environments. This conclusion was reached by performing a series of energy system analyses under various conditions of four national energy systems in Germany, Austria, Italy and Denmark. The solar thermal potentials were identified for each country today and in a future energy system converted to 100% renewable sources in the heating and electricity sectors. However, mixed results were found regarding the impacts on economy, environment and energy consumption when installing these solar thermal potentials.

Task 52 Highlights 2017
January 2018 - PDF 1.1MB - Posted: 2018-01-16
Based on an energy economic analysis - reflecting future changes in the whole energy system - strategies and technical solutions as well as associated chains for energy system analysis will be developed. Further on technically and economically feasible examples of integration of solar thermal systems in urban energy systems will be identified, assessed and documented.

Task 52 Highlights 2016
April 2017 - PDF 2.87MB - Posted: 2017-05-30
By: Task 52
A detailed analysis for the Austrian, Danish, German and Italian situation was done looking for different scenarios for the year 2050. For different shares of district heating and installed photovoltaic capacity potentials for solar heat were calculated using the techno-economic model EnergyPLAN. The results show that the overall share has a potential of 5-8% of the total heat demand.

Task 52 Highlights 2015
April 2016 - PDF 0.96MB - Posted: 2017-05-30
By: Task 52
A framework for energy system analysis was set up using different modelling approaches. A detailed analysis for the German situation was done looking for different scenarios for the year 2050. For different shares of district heating and installed photovoltaic capacity potentials for solar heat were calculated using the techno-economic model ReMod-D. First results show that for more or less similar costs for the over-all energy system, solar thermal might play a role when the installed PV-capacity is lower than 200 GW.

Task 52 Highlights 2014
February 2015 - PDF 0.39MB - Posted: 2017-05-30
By: Task 52
A framework for energy system analysis was set up using different modeling approaches. And, the EnergyPLAN by Aalborg University in Denmark will be used as the Reference Model.

Ingeniørforeningens Energiplan 2030
2006 - PDF 4.74MB - Posted: 2017-09-11
By: Henrik Lund; Brian Vad Mathiesen
ISBN: 87-87254-63-8

Det har været en stor udfordring at samle trådene og stå for de sammenfattende analyser af Ingeniørforeningen i Danmark, IDAs energiplan for 2030. Det var ikke lykkedes uden stor hjælp fra medarbejderne i IDA, de aktive i de fagtekniske selskaber inden for temagrupperne samt nøglepersoner fra store dele af den danske energisektor. Derfor vil vi gerne rette en personlig tak til alle disse personer, herunder ikke mindst styregruppen for projektet.