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Moldova: Vacuum Tube Collector Assembly Line Inaugurated

Submitted by Baerbel Epp on September 22, 2017
Inauguration MoldavaMoldova saw the commissioning of an assembly line for vacuum tube collectors in what used to be the large halls of a manufacturing plant. The owner of the premises is Raut, based in the city of Balti, who repurposed the location after succeeding in the government’s tender invitation at the end of 2016. The line, funded by the Polish government and the United Nations Industrial Development Organization (UNIDO), was implemented based on a technology partnership with Makroterm, a vacuum tube collector assembler from Cracow, Poland. The photo shows Dragos Pidleac, the then Director of Moldova’s Energy Efficiency Agency, and Manuel Mattiat from UNIDO (left and right, respectively, with an interpreter in the middle) during the inauguration. 
Photo: UNIDO
 

India: Growing Demand for Vacuum Tube Technology

Submitted by Baerbel Epp on November 16, 2016
India Market DevelopmentThe Indian market has started to show signs of recovery in the previous financial year from April 2015 to March 2016. A survey carried out by Indian consultant Jaideep Malaviya found the newly installed collector area to have reached a total of 1.55 million m² (1.085 MWth). The share of vacuum tube based systems had been rising steadily and was almost 90 % of the overall low temperature solar collector market in 2015-2016. Assuming some of the older systems are non-functional, the cumulative market was 8.9 million m² in at the end of March 2016. 
Source: MNRE up to and including 2013-2014, market survey by Jaideep Malaviya 2014-2015 and 2015-2016 
 

India: Bhagyanagar Captures Solar Energy and the Market

Submitted by Baerbel Epp on October 20, 2014
VenkateshwaraAt a time when vacuum tube technology is capturing larger shares of India’s solar collector market, one company has been successfully challenging the import competition: Bhagyanagar India Limited (BIL), India’s biggest fin-tube absorber manufacturer. According to the company’s Managing Director, Devendra Surana, the firm increased production volume by 50 % over the last two years, from 149,000 m² of absorber area in 2011 to 225,000 m² in 2013. BIL boasts 4 coating lines and 11 welding machines, and it has recently added a collector assembly site. The photo shows N. Venkateshwara Rao, Vice President of BIL, inspecting an ultrasonic-welding machine.
Photo: Jaideep Malaviya
 

India: Investment in Tank and Vacuum Tube Collector Production

Submitted by Baerbel Epp on November 25, 2013

The solar thermal industry in India is serving the strongly growing demand with additional manufacturing capacities of solar water heaters based on vacuum tube technology. This news piece presents two examples of solar manufacturers, V-Guard Industries and Inter Solar Systems, which have invested INR 180 million (EUR 2.1 million) and INR 100 million (EUR 1.2 million) in new factories, respectively. The trend towards vacuum tube technology has also been confirmed by the latest industry survey carried out by German agency solrico in September/October 2013. The seven solar water heater companies which manufacture collectors based on vacuum tubes and took part in the survey were able to increase their production by, on average, 58 % in 2012 compared to the previous year. The 14 flat plate manufacturers, on the other hand, reported stagnating production figures for 2012.
Photo courtesy: Inter Solar Systems

Poland: Rules Change for Vacuum Tube Collectors

Submitted by Baerbel Epp on September 30, 2013

On 2 September, the Polish National Fund for Environmental Protection and Water Management (Polish initialism: NFOŚiGW) announced new requirements for its residential subsidy scheme on its website. From 1 October 2013 on, the grant cap will refer to a collector’s aperture area and not its gross area. "The revision is needed, because new collector models with much bigger gross surface than aperture area have started to appear on the market," NFOŚiGW explained. Funding is capped at 2,250 PLN/m² of collector area (EUR 536), which corresponds to a share of 45 % of the investment costs. From October onwards, the calculation will be based on aperture area, drastically changing the regulations for vacuum tube collector suppliers.

India: “Test centres will educate manufacturers on quality measures”

Submitted by Baerbel Epp on June 26, 2013

From railway management to solar thermal technology: this is the how the life of Veena Sinha took a new path in December 2012. Sinha had worked with Indian Railways at the middle management level for 15 years. She had handled matters ranging from technology and human resources issues to project implementations in the field of electric traction and rolling stock before she started as Director – Solar Thermal at the Indian Ministry of New and Renewable Energy (MNRE) in December 2012. Solarthermalworld.org spoke with her about the market’s development and the quality assurance measures of the MNRE.

India: Flat Plate vs Vacuum Tube Technology

Submitted by Baerbel Epp on November 19, 2012

Until now, the Indian solar thermal market has been dominated by flat plate collectors (FPCs). FPCs have several advantages, with the main being robust and long-lasting. In a price-sensitive market such as the Indian one, however, vacuum tube collectors (VTCs) have gained a foothold over the last years because the systems are 30% to 40% cheaper if the glass tubes are imported from China. Although there is no official data available, VTCs are said to have reached a 35% share in the Indian market. In the fiscal year 2011/2012, market volume reached a newly installed collector area of 1 million m² (see interview with Tarun Kapoor). The photo shows flat plate collectors on high-rise, residential buildings in western India.
Photo: Kaushal Solar

Germany: Ritter Group’s Eco-Consequent Product Development

Submitted by Baerbel Epp on September 29, 2012

The German Ritter Group is proving its commitment to eco-business more and more: The latest generation of the Paradigma double-glass evacuated tube collectors, called Aqua Plasma, shows improved performance, as well as a reduction in weight and carbon emissions. This development matches the company’s philosophy, which has characterised Ritter since its origins and has lately received the name “Ecoquent” (Ecological Consequence). The photo shows the Management of the Ritter Group (from left): Klaus Taafel (Technology and R&D), Jürgen Korff (CEO, Marketing and Sales) and René Reinhold (Finance, Controlling and Legal Affairs).
Photo: Ritter Group

Turkey: Vacuum Tubes on the Rise

Submitted by Baerbel Epp on April 23, 2012

 Turkey market development Vacuum tube technology is gaining influence on the Turkish market. Between 2007 and 2011, the share of vacuum tubes among the total newly installed collector area in the country increased from 4 to 28 %, according to the market statistics of Hakan Alas, General Manager of Ezinç Metal. Solarthermalworld.org spoke to the manager of the largest solar thermal manufacturer in the country and asked him about the market research he has been carrying out since 2000, as well as his thoughts of the latest developments in the market.
Source: Ezinç Metal

Description of Simulation Tools used in Solar Cooling (2009)

Submitted by Raquel Ponte Costa on December 8, 2011

This technical report is a deliverable of Task 38, Subtask C within the framework of the International Energy Agency’s Solar Heating and Cooling Programme. It describes both existing and developing simulation tools and models used for solar cooling applications.

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