* Dezhou, China’s solar city

China knows it is a major emitter of green gases and polluter. But it is also at the forefront of trying to minimize the effects without slowing down economic development. One example is Dezhou, a city not very far from Beijing.

Here is one image –

But if you want to get a proper impression go to – http://inhabitat.com/china-building-the-biggest-solar-energy-production-base-in-the-whole-world/dezhou-solar-valley-1/

Also read – http://www.renewableenergyworld.com/rea/news/article/2012/06/solar-thermal-scales-new-heights-in-china – extracts below:

“Ask any six-year-old in a Chinese street, ‘What’s a solar water heater and what’s it for?’ Without hesitation they will tell you: ‘A solar water heater is on the roof of a building to make hot water for the shower’. This story is told by Hongzhi Cheng, vice secretary-general of the Beijing-based Chinese Solar Thermal Industry Federation (CSTIF) and head of The Sun’s Vision, a company based in the city of Dezhou in Shandong province.

Dezhou, one hour by car south of Beijing, has become one of China’s solar towns due to the presence of Himin Solar, one of the country’s largest solar water heater manufacturers. For a German visitor with an interest in solar thermal technology, driving in the city provides an exciting tour past scores of roof and facade installations.

From Retrofits to Central Systems

Dezhou is also a great city to see how the solar thermal industry is developing from retrofitted systems for individual households towards large-scale rooftop solar fields serving entire buildings.

Building-integrated Systems Take Off

The third generation of solar thermal technology in China consists of building-integrated systems. Himin Solar is blazing a trail with several demonstration projects in Dezhou’s ‘Solar Valley’.

Pressurised Balcony Systems

Each flat at these new developments also includes a vacuum tube collector installed in the facade and a 300-litre tank on the balcony to supply hot water. These solar systems represent a totally new generation of residential solar water usage in China. They are pressurised, indirect systems with u-pipe collectors, and a closed-loop solar circuit filled with glycol. If the facade collector fails to reach 60°C, the electric element in the tank compensates. Solar domestic hot water is therefore separate from the buildings’ central heating and cooling system.

Sales Double for Balcony Systems

Balcony systems are popular for multi-family buildings that lack roof space for a solar unit for each apartment. ‘We produced 60,000 tanks for balcony systems last year and we expect a doubling this year,’ says Jie Xu, Linuo Paradigma’s production manager.

China’s tall buildings seem to have no upper limit for solar thermal installations. The industry aims high and still has huge growth potential, says Hongzhi Cheng. ‘Only 30% of the market demand is fulfilled yet in the rural area. We expect the rural segment to grow [from around RMB100 billion ($15 billion) today] to RMB600 million.’ But he predicts even stronger growth of thousands of billions of renminbi for the large-scale solar thermal sector. European visitors will then be astonished by even more solar thermal installations on Chinese skylines.”

See also: https://chindia-alert.org/economic-factors/greening-of-china/

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