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India: Copper Thefts from Collectors Observed in India

Submitted by Baerbel Epp on July 10, 2013

Flat plate absorbers contain close to 6 kg of copper in form to fins and tubes and are one of the most expensive items in any solar thermal system. India is largely dependent on imports of copper as its reserves are limited to 0.6 million tons only. Being a precious metal it provides appreciation with time and prices also depend on international speculation. As a result it fascinates thieves to steal and trade it. The photo shows stolen copper absorbers in a 16 m2 collector field on the roof of the Bebe Nanki Mother and Child Care Centre at Guru Nanak Dev Hospital near the city of Amritsar, Punjab. Presently cost of copper in India is about 180 INR/kg (EUR 3 EUR/kg) and fetches good price in the market even under re-sale.
Photo: Malaviya Solar Energy Consultancy

India: Sufficient Raw Materials for strong Market Growth

Submitted by Baerbel Epp on December 16, 2010

 Aluminium fins” Aluminium fins by Indian company Maharaja Techno Chromes: According to the manufacturer, the laser-welded fins are nearly 60 % less expensive than copper ones and market acceptance is satisfying. Efficiency is certainly still a bit lower.
Photo: Jaideep Malaviya

Cupori Group brings out cleaner copper tubes

Submitted by Baerbel Epp on September 17, 2008

The Finnish company Cupori Group Oy, which in the spring took over the copper business of Outokumpu Copper Tube, now supplies a copper tube with a particularly clean surface. At the Intersolar 2008 in Munich in June the company presented its new “Tub-e” copper tubes, although still under the old name. They are claimed to have a particularly clean surface thanks to a thermal cleaning process. According to Cupori, welding times during absorber manufacture are shorter with the new tubes.

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