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Domestic Hot Water and Heating

USA: Solar Heating and Vacuum Tube Collectors are catching up

Submitted by Baerbel Epp on October 27, 2008

The US-American domestic solar heating and cooling market grew by 31 % in 2007, after the rapid climb of 77 % in 2006. These are figures from the annual statistics of the Energy Information Administration (EIA), which publishes the official energy statistics of the U.S. Government. In total 150,000 m2 of collector area was shipped last year (against 111,000 m2 in 2006). The EIA assumes that only 2 % of the total shipment was exported last year; the home market volume was thus 147,000 m2.

Heat Transfer Fluid from Corn

Submitted by Baerbel Epp on October 24, 2008

The US-American based renewable system supplier Solar Panels Plus LLC (SPP) has launched an alternative to petroleum-based propylene glycol. The new heat transfer fluid made from corn is completely renewable and biodegradable. “The underlying corn glycol product is made by chemical giant DuPont and we developed our own formula for the production of an efficient heat transfer liquid”, says SPP COO John Williams.

Zero Emission Collector Factory in Germany

Submitted by Baerbel Epp on October 17, 2008

Inauguration wagnerInauguration of the new flat plate collector factory of Wagner & Co. in Kirchhain, Germany Photo: Wagner & Co

Promotion of Solar Water Heaters

Submitted by Baerbel Epp on October 17, 2008

This 55-page study "International Experiences with the Promotion of Solar Water Heaters on Household-level", published in October 2006, introduces possible promotion mechanisms for solar water heaters on a household-level. Criteria for their assessment are defined in compliance therewith. The main focus of this paper is on describing and evaluating international experiences with promotion mechanisms in Germany, Greece, France, Tunisia, and Barcelona.

Further information: www.gtz.de/en/praxis/12538.htm

Solar Water Heating Project Analysis

Submitted by Nigel Cotton on October 13, 2008

RETScreen International is a unique decision support tool developed with the contribution of numerous experts from government, industry, and academia. Over the coming months, Leonardo ENERGY will be publishing a series of webcasts on energy project analysis using RETScreen.

Solar Water Heating Project Analysis

This module discusses systems that use solar energy to heat water.

View webcast (32 minutes)

Solar Thermal Energy: Harnessing the Power of the Sun

Submitted by Nigel Cotton on October 12, 2008
The video shows the use of solar thermal energy for heating in Europe. Examples from Denmark and Spain show the use in different climates. Interviews with users and manufacturers give a good overview of this clean energy technology. The video is provided for free by the Sustainable Energy Europe Campaign of the European Union.

Solar Victory in the U.S.

Submitted by Baerbel Epp on October 6, 2008

The first days of October were sunny days for the renewables in the United States. First the Senate and two days later the House of Representatives passed the Energy Improvement and Extension Act of 2008 which extends the 30 % investment tax credits (ITC) for solar thermal systems as well as photovoltaics through 2016.

Solar Heat – a Winner Technology for Austria

Submitted by Baerbel Epp on October 2, 2008

“The four years of climate protection programme “klima:aktiv” in Austria was the most successful programme ever”, Robert Kanduth, the chairman of Austrian Solar Thermal Association, Austria Solar, and CEO of Greenonetec, the biggest flat-plate collector manufacturer worldwide. Kanduth was upbeat about the programmes progress at his speech at the event “Solar heat – a winner technology for Austria” at the beginning of September in Gleisdorf, Austria.

Borosolar: India’s first glass vacuum tube manufacturer

Submitted by Baerbel Epp on October 2, 2008

Borosolar vaccum tubes from IndiaNew brand Borosolar: Borosil Glass Works Ltd. launched the first vacuum tube collector fully produced in India.
Photo : Borosil Glass Works

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