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concentrating collectors

Chile: Consistent Electrolytic Bath Temperature Control Increases Copper Cathode Quality

Submitted by Baerbel Epp on November 28, 2016
Ian NelsonPampa Elvira Solar (PES) operates the largest solar process heat installation worldwide, a 27.5 MWth collector field at the Gabriela Mistral mine in Chile. “It´s an every-day, every-hour struggle to harvest the sun and earn our wages, so we may continue the very humble – and much too often neglected – business of running a solar heat-delivering system in the middle of the desert,” said Ian Nelson, General Manager of Pampa Elvira Solar. Solarthermalworld.org spoke with him about dust problems, the opportunities of concentrating collectors, the challenges of ESCO operation and improved copper cathodes. Five-and-a-half years ago, the engineer started at Energía Llaima, an independent producer of hydro and solar thermal solutions. PES, which was founded in 2012, is a consortium of Danish company Arcon-Sunmark and Energía Llaima. 
Photo: Pampa Elvira Solar
 

Solar Process Heat in Chile: “It is essential to use the ESCO model”

Submitted by Baerbel Epp on November 21, 2016
Roberto RomanThe world’s largest process heat installation has recently completed its third year of operation. The 39,000 m² collector field, which went online in October 2013 at Codelco´s Gabriela Mistral mine, is located 100 kilometres south of the town of Calama in Chile´s high central desert. Planning, delivery and installation of the solar field were done by Chilean-Danish joint-venture Pampa Elvira Solar, which has since been the operator of the system as well. The plant provides around 80 % of the energy required for the last step in copper production, the electrolytic refining of the metal in an acid bath. Solarthermalworld.org spoke with Roberto Roman, Associate Professor at the Faculty of Physics and Mathematical Sciences of the University of Chile. Roman has been part of a university team advising Codelco, Chile´s state-owned mining company, on solar mining from the very beginning.
Photo: Taken from the video interview at the Eurosun 2016
 

USA: SunShot Funds Development of Cost-Effective Concentrating Collectors

Submitted by Baerbel Epp on August 29, 2016
SunshotOn 28 July, the US Department of Energy (DOE) awarded grants to six research projects which aim to reduce the costs of concentrating solar collectors. The initiative is called COLLECTS, which is short for Concentrating Optics for Lower Levelized Energy Costs, and focuses on the most expensive component of a CSP plant: the collectors / the reflector. One of the beneficiaries of the COLLECTS budget of nearly USD 9 million is California-based, early-stage technology provider Sunvapor, which is planning to supply the industry with solar steam solutions more cost-effective than natural gas-based steam boilers. COLLECT is part of the DOE’s SunShot initiative started in 2011.
 

India: First Mirror Manufacturer for Concentrating Collector Application

Submitted by Baerbel Epp on January 26, 2016

ARS Glasstech based in Gujarat state in western India has become the first domestic glass mirror manufacturer for concentrating solar thermal collectors. So far, Indian manufacturers of dish collectors had been dependent on mirror imports for their high-temperature applications. The unique selling point of ARS Glasstech is its delivery of mirrors in the small sizes required to set up concentrating dishes typically used in India. Glass is cut by CNC glass-cutting machines and sealed at the sides. The photo shows the first retrofit project with ARS mirrors, during which 1,250 m2 of mirror surface area of the solar thermal air-conditioning system were replaced at Kailash Cancer Hospital in Gujarat. The retrofit had the financial support of the GEF-UNDP CSH PROJECT.

Photo: ARS Glasstech

Heating Water with Solar Energy Costs Less at the Phoenix Federal Correctional Institution (2004)

Submitted by Raquel Ponte Costa on June 13, 2015

This report was released by the Energy Efficiency and Renewable Energy section of the U.S. Department of Energy in 2004. It highlights a large-scale solar thermal system installed at the Phoenix Federal Correctional Institution (FCI) and breaks down the statistical output. The system was financed through an Energy Savings Performance Contract (ESPC), which include an average annual savings of $6,700.

Heating Water with Solar Energy Costs Less at the Phoenix Federal Correctional Institution (2004)

Submitted by Raquel Ponte Costa on March 15, 2015

This report was released by the Energy Efficiency and Renewable Energy section of the U.S. Department of Energy in 2004. It highlights a large-scale solar thermal system installed at the Phoenix Federal Correctional Institution (FCI) and breaks down the statistical output.

Switzerland: Process Heat Collector Performance Testing

Submitted by Baerbel Epp on April 1, 2014

Elimar Frank 1Process heat collectors in the range of 100 to 250 °C represent a rather new type of technology, and test institutes are facing some challenges when trying to test these collectors. Solarthermalworld.org spoke with Dr Elimar Frank, Research Director at the Swiss Institute for Solar Technology, SPF, in Rapperswil. Frank is also Subtask Leader for Process Heat Collector Development and Process Heat Collector Testing in Task 49 of the IEA Solar Heating and Cooling Programme. The chart shows the efficiency curves of different collector types.
Charts: SPF

Concentrating Solar Thermal Systems for Generating Electricity (2010)

Submitted by Raquel Ponte Costa on December 7, 2011

This is a presentation from the Mexican Non-Conventional Energy Management Electric Power Research Institute aimed at describing the perspectives of using concentrating solar power (CSP) technologies, and the implications stemming from this choice. It was made during the Latin American Energy Organization (OLADE) Electricity Workshop held in Paraguay in May 2010.

Europe: Solar Keymark Scheme Rules for concentrating solar collectors

Submitted by Baerbel Epp on November 6, 2011

 Solar Keymark Network MeetingDuring the meeting in Paris in October 2011, the Solar Keymark Network has accepted an extension of the Solar Keymark Scheme Rules. In the future, Solar Keymark will be available for both solar water heater stores and concentrating solar collectors. At the same meeting, the Solar Keymark Network has approved the new Annual Collector Energy Output Calculation Tool as a standard measuring tool for all Solar Keymark certified collectors. The energy output calculated with it can from now on be found on all Solar Keymark data sheets.
Photo: Henry Rosik

Heating Water with Solar Energy Costs Less at the Phoenix Federal Correctional Institution (2004)

Submitted by Hans Craen on December 30, 2009

This report was released by the Energy Efficiency and Renewable Energy section of the U.S. Department of Energy in 2004. It highlights a large-scale solar thermal system installed at the Phoenix Federal Correctional Institution (FCI) and breaks down the statistical output.

The system was financed through an Energy Savings Performance Contract (ESPC), which include an average annual savings of $6,700. The system produces up to 50,000 gallons of hot water daily, 1,000 megawatt-hours of electricity and releases approximately 600 tons of CO2.

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