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S.O.L.I.D.

Solar District Heating: How to Tackle Land Use Issues

Submitted by Baerbel Epp on October 11, 2017
SDH double useUsually, solar district heating (SDH) plants require large fields for collector installations, which has raised concerns at local level because of competing land uses and a system’s potential visual impact on the surroundings. One way out of this dilemma is to combine heat generation and fruit and vegetable harvest (see illustration). As part of SDHp2m…From Policy to Market, a Horizon 2020 project, some regions are looking to create regulations based on best practice examples of land use or spatial heat planning. This article will present showcases from the Styria region in Austria, Hamburg in Germany and Valle d’Aosta in Italy (see also the attached fact sheets).
Graphic: Hamburg Institut Research
 

IEA Task 55: Solar District Heating Means Big Business

Submitted by Baerbel Epp on May 23, 2017
Task 55Solar district heating is attractive business. Not only does this become obvious when looking at the 347 MWth of newly installed SDH capacity in Denmark in 2016, but also when one hears about Big Solar, a 250 MWth collector field – with 1.8 million m² of seasonal storage – planned to cover 20 % of the energy demand in the Austrian city of Graz by 2020. It certainly explains the high interest in international research platform Towards the Integration of Large SHC Systems into DHC Networks, or Task 55 of the IEA Solar Heating and Cooling Programme. “We welcomed 33 participants from eight countries during our second project meeting in Aalborg in mid-March, and even had to limit the number of participants per company because of the huge demand,” explained Sabine Putz, Operating Agent of Task 55 and COO and Head of R&D at S.O.L.I.D.
Photo: AALBORG CSP
 

Austria: New Medium-Temperature Collectors Show Remarkable Yield in District Heating Use

Submitted by Baerbel Epp on March 2, 2017
Graz Test Field SOLIDDuring the last seven years, a group of scientists has monitored selected large solar thermal installations in Austria on behalf of the Austrian Climate and Energy Fund. The gathered data confirms that these plants have been reliable and produce satisfactory yields. Particularly the new generation of large-scale medium-temperature collectors either with a foil or with a second glass cover shows remarkable results in district heating use. The 2,490 m² solar field (see photo) which has fed heat into the district heating network of Graz, Austria, reached a yield of 489 kWh/m². 
Photo: Picfly.at Thomas Eberhard
 

Denmark: New Solar District Heating World Record

Submitted by Baerbel Epp on January 26, 2017
SilkeborgThe Danish town of Silkeborg now holds the record for having the world’s largest solar heating system. The SDH plant of 156,694 m² (110 MWth) came online as scheduled in December 2016 after only seven months of construction. Municipal utility Silkeborg Forsyning intends to use the harnessed solar energy to meet 20 % of the annual heating demand of the 21,000 plant-connected users. The solar field was divided into four subfields to make it possible to set up the installation and hydraulics systems on this irregularly shaped piece of land (see photo). The former record holder is another installation in Denmark, in Vojens, boasting 70,000 m² (48.90 MWth) of installed solar thermal capacity. Both plants were turnkey deliveries from Danish collector manufacturer Arcon-Sunmark. 
Photo: Arcon-Sunmark
 

Qatar: Gulf Region’s Sustainability Experts Meet IEA’s Solar Heating and Cooling Specialists

Submitted by Baerbel Epp on November 23, 2016
Green Expo ForumAbout 400 industry stakeholders met in the Ritz Carlton Hotel in Doha in early November to attend the first Green Expo Forum organised by the Gulf Organisation for Research and Development (GORD). The three-day conference offered presentations by experts from Gulf countries and the IEA Solar Heating and Cooling Programme (IEA SHC), which held its biannual Executive Committee meeting at around the same time. “The GORD conference was a great forum for presenting the research work from the IEA Solar Heating and Cooling Programme,” said Ken Guthrie, Chairman of the IEA SHC. GORD had organised the Green Expo Forum in collaboration with the Supreme Committee for Delivery & Legacy and Qatari Diar Real Estate Investment. The first-day event was titled The Carbon & Climate Change Summit. The second and third day featured the Sustainable Built Environment Conference.
Photos: GORD
 

Webinar: Think Big – Design Rules and Monitoring Results of Solar District Heating Systems

Submitted by Baerbel Epp on November 3, 2016
SmartreflexIn cooperation with EU project SmartReFlex, solarthermalworld.org will soon hold the webinar Think big – Design rules and monitoring results of solar district heating systems. We invite every stakeholder to join the event scheduled online for 1.5 hours on Tuesday, 6 December 2016, from 2 p.m. to 3:30 p.m. Central European Time (time zone includes Berlin, Brussels, and Copenhagen). The webinar will be free of charge and will be open to anyone interested in the topic. You can register for it online.
 

Nicaragua: Soft Loan to Fund EUR 4 Million Project

Submitted by Baerbel Epp on October 14, 2016
Hospital ManaguaThere is now nothing in the way of constructing an impressive solar heating and cooling installation in Nicaragua. At the end of September, the last signatures were placed under the contract documents for a 4,450 m² collector field which will supply air conditioning and warm water to the Hospital Militar Escuela Dr. Alejandro Dávila Bolaños in Managua (see photo), the capital city of the central American nation. “Installation work will start in January 2017, and commissioning is planned for the second quarter of next year,” was how Christian Holter, Managing Director of S.O.L.I.D, outlined the ambitious plan. The Austrian turnkey system supplier had been struggling for over three years to receive financing for the 4 million EUR project in form of a soft loan, a financing instrument for developing countries.
Photo: Hospital Militar Escuela Dr. Alejandro Dávila Bolaños
 

Austria: Decision on Operating Company for Big Solar Graz Expected Soon

Submitted by Baerbel Epp on June 17, 2016
Gleisdorf Solar 2016“Large-scale solar thermal systems in the GW range – an insignificant niche market or the future for solar thermal?” was the official title of a panel discussion at the Gleisdorf Solar conference in Austria in early May. The most important question was: What will be next for the planned 350 MWth solar district heating system called Big Solar in the Austrian city of Graz? “The challenge was to adapt the Danish district heating solutions to Austrian conditions,” emphasised the project’s initiator, Christian Holter (right), Managing Director of S.O.L.I.D. Meanwhile, Christian Stadler (left), Managing Director of one of Arcon-Sunmark’s subsidiaries, Arcon-Sunmark Germany & Austria, represented the company that has stated his own interest in realising Big Solar.
Photo: AEE INTEC
 

Austria: Award-Winning Energy Service Company Publishes ESCO Model Fact Sheets

Submitted by Baerbel Epp on May 26, 2016
Contracting AwardEnergy Service Companies (ESCO) have become pioneers in the development of financing and operating models for various energy sector customers. Every two years, the so-called Contracting Award highlights exemplary ESCO projects in Germany (“Contracting” is the German word for Energy Service Contracts). For the first time since the launch of the awards in 1997, the jury members from the magazine Energy & Management and the German Heat & Power Association, AGFW, presented one of these awards to a solar thermal ESCO. On 16 April, Christian Holter (third from left), Managing Director of Austrian turnkey system supplier S.O.L.I.D., was presented with the second prize for its solar energy supply contract with a district heating company in the Austrian city of Graz. The company published Tech Sheets and Fact Sheets about ESCO models as part of the IEA’s Solar Heating and Cooling programme’s Task 45, Large Scale Solar Heating and Cooling Systems (see the attached documents).
 

Austria: Big Solar – EUR 200 Million Investment in Graz

Submitted by Baerbel Epp on April 15, 2016
Kleine ZeitungThe Austrian municipality of Graz is preparing for the post-fossil fuel heating era: On 27 February, the front page of national newspaper Kleine Zeitung (copies sold each day: around 300,000) read “Graz plans largest solar storage worldwide”. According to the news article, regional energy provider Energie Steiermark and Austrian solar thermal system supplier S.O.L.I.D conducted a feasibility study for a huge solar district heating plant called Big Solar – with promising results. The study and the news article both references the world’s largest collector field in Danish Vojens with 70,000 m² (49 MWth) as a successful example of how to undertake such a large project. At the beginning of April, Energie Steiermark confirmed the plans for Big Solar’s realisation in a press release about 2015’s annual financial statement. 

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