Different vacuum tube technologies in comparison: The full-glass vacuum tube can easily be recognised by the extended and closed top. Photo: Sven Tetzlaff
One of many regional fairs in China: the outdoor exhibition space in Zhengzhou, a city in Henan province Photo: Sven Tetzlaff
A couple of years ago, Bulgaria began to support solar thermal systems by providing a combination of grants and loans for their installation. The so-called Residential Energy Efficiency Credit Line […]
Nagpur city in central India – one of 60 solar cities in India supported by the government. An ambitious programme by the Indian federal Ministry of New and Renewable Energy […]
The German solar thermal industry rides roller coaster. After a 40 % decrease in 2007 and a 120 % increase in 2008, the outlook for this year still remains foggy. […]
The German solar thermal market more than doubled in 2008. According to the solar industry association BSW-Solar and the heating industry association BDH; 2.1 million m2 of new collector area […]
Laser welding machine for absorber sheets: A patent in the United States could slowdown the development of this technology. Photo: Sunlaser Consulting
Solar cooling is a promising new field of application for solar thermal technology. A new version of the simulation software Polysun will be published in April. It will not only […]
90 % of South Africa’s electricity is generated by coal-fired power stations. The fourth quarter of 2007, however, started with massive power cuts as electricity supply fell behind demand. Eskom, […]
Surviving in harsh climate: This vacuum tube collector system has heated the Brandfield House at the Rothera research station in the Antartic since February 2008. Photo: British Antarctic Survey