With more than 200,000 visitors from 61 countries and 2,482 exhibitors, this year´s ISH trade fair in Frankfurt, Germany, set a new record. The biannual exhibition showed the latest trends in building and heating technologies, including renewable energy applications. During the one-hour press conference of the German heating industry association BDH, the world “solar” was not even mentioned once. Faced with decreasing interest in solar thermal across central Europe, the portfolio of the few exhibitors specialising in the technology included electric heating in one way or another. The photo shows a collector to regenerate boreholes which are connected to heat pump.
During 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.
Professor Vitaly A. Butuzov is one of Russia’s well-known experts on solar heating and cooling. He is professor at the Department of Electrical Engineering, Heat and Renewable Energy of Kuban State Agrarian University in Krasnodar, the capital of the region which bears its name. This region is one of the main economic centres in southern Russia. Additionally, Butuzov is Director of Krasnodar Power Technologies, which offers solar thermal systems in combination with geothermal units and energy efficiency projects. Solarthermalworld.org spoke with him about market development in Russia.
The 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.
Austrian collector manufacturer Tisun is currently the supplier for three major projects in Kuwait (Graphic), Abu Dhabi and Qatar. Its subsidiary, Tisun GCC, and two Dubai stakeholders have been the ones helping the company enter the Arab markets. Since 2010, Tisun has had a local subsidiary in Dubai, Tisun GCC. Tisun’s first reference project in the region was a 500 m² solar field built in 2012 for a food-processing factory and it has opened many doors since.
The ranking of the largest flat plate collector manufacturers is headed by the same four companies as last year: Greenonetec from Austria, Fivestar from China, Soletrol from Brazil and Bosch Thermotechnik from Germany. But aside from the continuity at the top, last year shows what different paths some markets have taken. Whereas Australian-based Solahart, one of the pioneers of global solar collector trade, as well as Soletrol, the largest Brazilian manufacturer, have lost ground, several others – such as Sunrain from China, Hewalex from Poland and Eraslan from Turkey – were able to report above-average growth for 2015 and rise through the ranks. The produced collector area of the overall 21 companies added up to 4,212,462 m². The number was 21 and not 20 because the last and second-last spot were occupied by companies with equal production output.
The IEA’s Medium-Term Renewable Energy Market Report or MTRMR 2016 again includes a chapter on renewable heating and cooling – and it’s growing in size. The 282-page document published from Singapore on 25 October analyses on 47 pages the current and future market development of four renewable heating technologies: biomass, solar thermal, geothermal and heat pumps. The IEA began to add a renewable heating chapter to its MTRMR in 2013 – back then, it had only 14 pages. The authors of this year’s edition emphasise the fact that onshore wind and solar PV are the only renewable technologies on track for a 2 °C target.
In September 2016, Roger Hackstock returned as Managing Director of Austria Solar after having already occupied this position between 2002 and 2013. In the three years that he was not at the helm of the Austrian industry association, Hackstock published a book on the “Energiewende” (energy transition), worked as programme manager for the country’s Climate and Energy Fund and coordinated the Storage initiative as an independent consultant. During our interview, he spoke about the challenges solar heat has had to face over the years, as market demand for system solutions is steadily on the rise, and noted that he was happy to support the industry in this new era.
The recording of the webinar Think big - Design rules and monitoring results of solar district heating systems is now available. Experts from Austria, Denmark and Germany reported on the hot topics in SDH development: Use and performance of seasonal heat storage units for increasing solar coverage, distributed SDH plants connected to specific points of district heating grids as well as large centralised SDH plants employed in particular in Denmark and combined with other renewable energy sources. They emphasised the fact that solar district heating has an enormous potential and monitoring data shows the high reliability of the systems as well as the high performing new generation of collectors. You find the presentations as attachments below.
About 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.