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Europe: Comparing Solar Keymark Data on Collectors with Foil or Double Glass Cover to Ones Without

Submitted by Baerbel Epp on April 3, 2017
KBB large-scale collectorDenmark’s success story in solar district heating, with 2016 having been another record year which almost doubled newly installed collector area to around 500,000 m², showcases the large potential of this type of application across Europe. Cost cuts in the supply chain are key: Two vital factors are fast installation and less hydraulic work on site. The answer by manufacturers to these challenges has been to design large-scale prefabricated collectors. Suppliers of vacuum tube collectors offer modular designs for easy mounting of collectors above 10 m²; large flat plate versions come as one piece and certified by Solar Keymark. The yearly market surveys by German magazine Sonne Wind & Wärme show that the number of certified flat plate collector panels above 10 m² of gross collector area has increased in Europe in recent years. As of 29 March 2017, the magazine’s online collector database listed 62 models from eight brands compared to 20 types of collectors in October 2015.
Photo: KBB
 

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
 

IEA SHC: Cost Reduction Analysis Workshops at German University of Stuttgart

Submitted by Baerbel Epp on September 8, 2016
Task54 Brussels WorkshopSystem cost reduction is one of the most urgent challenges of the solar thermal sector, especially in central Europe. The aim of Task 54 of the IEA Solar Heating and Cooling Programme, Price Reduction of Solar Thermal Systems, is to lower solar heat prices by up to 40 %. Germany’s main scientific contributions to the task have come from the two research projects KoST and TEWIsol, which have been co-funded by the German Federal Ministry for Economic Affairs and Energy. The corresponding Task 54 meeting will take place in Stuttgart on 6/7 October (see the attached programme) in conjunction with a workshop on 5 October to present and discuss KoST and TEWIsol (12 p.m. to 4 p.m.; held in German). The photo shows the Task 54 workshop organised in collaboration with the European Solar Thermal Industry Federation in Brussels in May 2016.
Photo: Fraunhofer ISE
 

Europe: Solar Keymark Network to Improve Complaint Procedures

Submitted by Baerbel Epp on March 31, 2016
The Solar Keymark Network has decided to establish a working group in order to revise and improve the complaint procedures and put them into one document, as they have so far been described in several different papers and various articles: The Solar Keymark Scheme Rules, Article 2.2, includes instructions on how to handle complaints and there is Article 6.3. Special Test, whereas the CEN-CENELEC Internal Regulations Part 4, Article 7.4, describes the appeal procedures (see the attached documents). This move is deemed necessary because at the end of 2015 – for the first time since the Solar Keymark label was launched – several complaints were submitted to one of the empowered certification bodies. “In our network meeting, we informed the members about the first big complaint and discussed the need for putting the complaint procedures into one document, to make it clearer for the solar thermal industry how to use them,” said Jaime Fernández González-Granda, Chairman of the Solar Keymark Network and Product Officer at the Spanish certification and standardisation body, AENOR. 
 

IRENA: “They speak about energy, but they mean electricity”

Submitted by Baerbel Epp on February 3, 2015
IRENAIt was a busy Abu Dhabi Sustainability Week (ADSW) this January: It started with the fourth assembly of the International Renewable Energy Agency (IRENA), which brought together 1,200 high-profile attendants on 17 and 18 January 2015, and went on with the four-day World Future Energy Summit between 19 and 22 January, a summit that offered a renewable technology exhibition, as well as a series of conferences and debates on all technological and political issues regarding today’s renewable industries. The organisers expected around 32,000 visitors from 170 countries. “The next wave of disruptive changes is happening in energy,” Adnan Z. Amin, Director-General of IRENA, said during the FT IRENA Question Time Debate on 18 January 2015. 
Photo: IRENA
 

Tunisia: Ups and Downs of Prosol Subsidy Scheme

Submitted by Baerbel Epp on December 15, 2014

Tunisia’s incentive and low-interest loan scheme Prosol can already celebrate its tenth anniversary next year. Since 2005, the Tunisian Company of Electricity and Gas, STEG, has been managing the programme, which enables end consumers to repay a loan for a solar water heater over five years by having the instalment amount charged to their monthly STEG electricity bill. The programme was praised as an ideal showcase for the entire region, because market volume grew by more than a factor of ten in only five years. Before the start of the grant programme in 2005, Tunisia had only had an annual installation figure of 7,000 m2. In 2008, the subsidised collector area was already at 80,000 m2. But last year, market volume dropped to 53,000 m2 because of several factors listed below.
Chart: National Agency for Energy Conversation

Slowdown of the Solar Thermal Market in Germany

Submitted by Baerbel Epp on October 19, 2009

 Germany Statistics Wagner” The growth of the German solar thermal market is coming to halt – or even worse: The market statistics of the solar industry association BSW-Solar and the heating industry association BDH (BDH/BSI statistics) show a strong decrease during the summer months.
Photo: Bärbel Epp

Stretching an absorber like a trampoline

Submitted by Baerbel Epp on July 12, 2008

KBB Kollektorbau at Intersolar 2008Stephan Fintelmann, founder and executive director of Berlin’s OEM collector manufacturer KBB Kollektorbau, presents his new K4 collector series at Intersolar.
Photo: Bärbel Epp

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