You are here

Chalmers University of Technology

Sweden’s Solar Heat Market on Hold

Submitted by Baerbel Epp on October 20, 2017
The IEA Solar Heating and Cooling (SHC) programme has recently updated its country report on Sweden’s solar thermal industry, pointing out the increasing competition with other energy technologies and the factors exacerbating the decline in sales. It seems as if not even the rather high national carbon tax can reinvigorate the country’s solar heat market. Especially in the residential segment, fossil fuels have already been phased out and biomass boilers plus district heating have become the standard in cities, while heat pumps dominate in rural areas. The photo shows a solar facade with vacuum tube collectors in the Swedish city of Malmö. 
Photo: Riccardo Battisti
 

Solar Thermal Shows Highest Energy Yield Per Square Metre

Submitted by Baerbel Epp on July 31, 2017
Area Yield ComparisonThe annual energy yield per square metre is much higher for solar collectors than for other renewable technologies, as the figure on the left shows. Compared to PV, solar collectors produce, on average, three times as many kilowatt-hours. Compared to biomass or bioethanol, output is in average as much as 43 times their yield. The chart shows end energy production and compares directly thermal and electric kilowatt-hours. The grey part of each bar marks the deviation in yield based on different estimates. The absolute values can be found in a table at the bottom of this article.
Source: Fraunhofer ISE, PlanEnergi and Chalmers University
 

Denmark: Solar District Heating Capacity Nearly Doubles in 2016

Submitted by Baerbel Epp on April 25, 2017
District Heating in DenmarkLast year was a record-breaking one for new solar district heating (SDH) installations in Denmark. With 31 new SDH systems and 5 plant expansions, the newly installed collector area grew at double the rate of 2015 and totalled 495,226 m² (347 MWth). The year prior saw 15 plants built and three expanded, while collector area increased by 250,161 m² (175 MWth). Almost all plants newly installed or expanded in 2016 were equipped with flat plate collectors, except for the 18.9 MWth parabolic trough installation in Brønderslev. The annual statistic on SDH installations is maintained by Daniel Trier from Danish consultancy PlanEnergi and starts with the very first large SDH plant in 1988. Trier said that at the end of 2016, there had been 104 SDH plants in operation with a combined collector area of 1.3 million m² (911 MWth).
Chart: PlanEnergi
 

Europe: 23 New and Upgraded Solar District Heating Plants of 190 MWth Start Operation in 2015

Submitted by Baerbel Epp on April 5, 2016
District Heating EuropeAs in previous years, Denmark remained the country dominating Europe’s solar district heating market. Twenty of the 23 new and upgraded district heating plants in Europe above 350 kWth (500 m²) from the statistics compiled by Jan-Olof Dalenbäck from the Chalmers University of Technology, Sweden, went into operation in Denmark – whereas Austria, Italy and Sweden had only one each to show for. Dalenbäck’s database shows 211 large-scale district heating plants currently in operation, with combined output at 708 MW (1.01 million m²). This means that only every fourth district heating plant in Europe uses solar energy compared to the 5,400 district heating systems a database from Swedish Halmstad University lists from across the EU-27. The map shows 2,188 cities with 2,445 larger district heating systems. The highest plant densities can be found in Denmark, Poland, the Czech Republic and Slovakia. 
Source: Heat Roadmap Europe 2050 - Second pre-study for the EU27 (see the attached document)
 

Europe: Online Database on Large-Scale Solar Heating Plants

Submitted by Baerbel Epp on November 18, 2014
District Heating per CountryThe database on Europe’s largest solar heating plants, which can be found on the EU project SDHplus website, dates back to 1997. In the meantime, it has grown to 131 solar heating plants totalling a collector area of 586,000 m² (410 MWth). The first plants included in the database were installed in 1979. 124 of 131 systems are solar heating plants, most of them for district heating (particularly those in Denmark, Sweden, Germany, Austria, Poland and France), but also for large buildings, industrial use and other applications, whereas seven are cooling installations. The database contains "close to 100 % of all plants which have a minimum thermal output of 700 kW and started operating until the end of 2013,” says Jan-Olof Dalenbäck from the Chalmers University of Technology, who is in charge of updating the database as part of the SDHplus project. Eleven of these systems, with a joint output of 22 MW, have been shut down by now. The pie chart shows the installed collector area of district heating systems broken down by country.
Source: Database on SDHplus website
 

Sweden: New Solar-Heated Residential Area in Vallda Heberg

Submitted by Baerbel Epp on July 15, 2014
Vallda Heberg Main Heating PlantSolar district heating may still be in its infancy, but more and more projects across Europe are starting to showcase its great potential. Speakers at the second International Solar District Heating Conference, which took place in Hamburg, Germany, on 3 and 4 June 2014, presented and analysed several solar district heating designs, as well as their successful implementation. For example, Jan-Olof Dalenbäck, Professor at the Chalmers University of Technology, shared the first performance results of the solar thermal systems at the new solar-heated residential area in Vallda Heberg, Sweden. The photo shows the main heating station with 108 m² vacuum tube collectors in its facade. 
Photo: Calmers University of Technology
 

SDH Conference 2014: “We have to work on lighthouse projects”

Submitted by Baerbel Epp on June 5, 2014
EnergiebunkerOn 3 and 4 June 2014, the halls of the old waterworks of municipal utility “Hamburg Energie” in Hamburg, Germany, became the venue for the 2nd International Solar District Conference. 115 participants from 13 countries and many different backgrounds were offered a wide range of presentations covering policy, market and technical issues, along with several practical examples of solar district heating plants. On top of that, the conference offered a technical tour to the solar district heating project “Energy Bunker” at the site of the International Building Exhibition IBA in Hamburg-Wilhelmsburg (see photo). The Energy Bunker is one of these lighthouse projects speakers and participants deemed nessessary to make solar district heating visible to consumers and politicians. 
Photos: Stephanie Banse
 

Europe: Grid Integration Poses Challenge for Solar District Heating

Submitted by Baerbel Epp on May 16, 2013

The first conference “Solar District Heating – Technical solutions, urban planning and business models” took place in the Swedish town of Malmö on 9 and 10 April 2013. It brought together 120 participants from 19 countries: manufacturers, district heating companies, scientists and industry associations. Examples from Sweden made clear that it is not easy to integrate solar heat into a system which has not been designed for it. The main topics in the presentations from Sweden were operation issues and the question what is a fair price for solar heat. But an ongoing discussion in Germany illustrates that the integration of solar into district heating networks also has strong economic and political elements. The photo shows the conference participants visiting a solar plant operated by E.ON Sweden in the Western Harbour of Malmö.
Photo: Solites

Preliminary RHC and SDH Conference Programmes Available for Download

Submitted by Baerbel Epp on March 12, 2013

The preliminary programmes of the 4th European Conference on Renewable Heating and Cooling, which will take place from 22 to 23 April in Dublin, Ireland, and for the SDH conference from 9 to 10 April in Malmö, Sweden, are now available for download at their event websites. The photo shows the solar thermal panel at last year’s RHC conference in Copenhagen, Denmark.
Photo: ESTIF

Solar Heating Plants (2011)

Submitted by Raquel Ponte Costa on April 20, 2011

This is a presentation made by Jan Olof Dalenbäck, Professor at Chalmers University of Technology, during the International Solar District Heating Workshop that took place in Graz, Austria, in March 2011.

The presentation provides a SWOT (strengths, weaknesses, opportunities and threats) analysis of solar heating in Europe. The main threat is the lack of incentives and knowledge from decision makers and consumers about this technology.

Pages

Search results

  • Companies : Chalmers University of Technology