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Process Heat

IEA Medium-Term Report: Solar Heating and Cooling Not on Track for 2 °C Scenario

Submitted by Baerbel Epp on December 15, 2016
MTRMR 2016The IEA’s Medium-Term Renewable Energy Market Report or MTRMR 2016 again includes a chapter on renewable heating and cooling – and it’s growing in size. The 282-page document published from Singapore on 25 October analyses on 47 pages the current and future market development of four renewable heating technologies: biomass, solar thermal, geothermal and heat pumps. The IEA began to add a renewable heating chapter to its MTRMR in 2013 – back then, it had only 14 pages. The authors of this year’s edition emphasise the fact that onshore wind and solar PV are the only renewable technologies on track for a 2 °C target.
 

UNIDO India: Great Potential and Efforts to Increase Awareness of Concentrating Solar Thermal

Submitted by Baerbel Epp on December 2, 2016
Dr Anil MisraThe new interest subvention scheme for Concentrating Solar Thermal (CST) technologies administrated by the Indian Renewable Energy Development Agency (IREDA) is now open for applications. The scheme has been developed in cooperation with the UN Industrial Development Organisation (UNIDO) during the GEF-UNIDO-MNRE project, which focuses on increasing the deployment of concentrating solar thermal systems for process heat applications in India. “Technology providers or beneficiaries can use a short-term bridge loan at normal interest rates for pre-financing the 30 % capital subsidy that the Ministry of New and Renewable Energy grants for CST technologies,” explained Dr Anil Misra, National Project Manager at UNIDO (see photo). IREDA also hands out long-term loans covering up to 45 % of the benchmark system cost at 5 % lower-than-usual interest rates. The remaining 25 % are required as equity by the beneficiary.
 

Mexico: Second Solar Process Heat Case Study on Copper Mining

Submitted by Baerbel Epp on December 1, 2016
Mexico Copper MineArcon-Sunmark has announced the completion of a second solar-heated copper mine project. In September 2016, the Danish company installed a 6,270 m² collector field (4.4 MWth) at La Parreña in central Mexico. A 30 September press release said that the solar field would cover 58 % of the mine’s demand for heat. The field consists of 456 components of nearly 14 m² each and a storage tank of 660 m³. The first project of its kind, a field of 39,300 m² (27.5 MWth), was completed with a joint-venture partner at the Gabriela Mistral mine in Chile in 2013. Being the world’s largest solar system for process heat application, it had produced 142,000 MWh in the first 35 months of operation, the press release said. This corresponds to a specific yield of 1,112 kWh per m² and year. 
Photo: Arcon-Sunmark
 

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: Californian Solar Process Heat Potential and Gas Price Competitiveness

Submitted by Baerbel Epp on November 19, 2016
Researchers at the US National Renewable Energy Laboratory (NREL) have observed a renewed interest in solar process heat applications in recent years, mainly thanks to “the improvement and proliferation of solar collectors for electricity generation and the development of sophisticated solar collector modelling tools.” Last year, two of those researchers – Parthiv Kurup and Craig Turchi – conducted a study on the potential of solar process heat provided by concentrating collector technologies in California (see the attached document). This study, entitled Initial Investigation into the Potential of CSP Industrial Process Heat for the Southwest United States, was supported by the US Department of Energy and was published in November 2015. The chart taken from it shows the annual energy use of steam in industry segments which utilise the largest amount of gas. The study’s authors found the temperature range from about 120 to 220 °C to be of great interest, as it enables the use of concentrating optics and of water as the heat transfer fluid. 
Chart: Page 22 of the attached study
 

Germany: “Performance-based incentives for all solar thermal plants”

Submitted by Baerbel Epp on November 11, 2016
In spring 2015, Germany´s Federal Office for Economic Affairs and Export Control (BAFA) introduced a performance-based incentive for solar heating as an alternative to the scheme offering incentives based on collector area. Recently published statistics have shown the new programme to grant higher financial support for about one-third of the currently funded projects. The others still receive funding from the previously established scheme. 
 

IEA SHC Task 46: Bankable Solar Data Sets for Concentrating Technologies

Submitted by Baerbel Epp on November 2, 2016
Whether investors put their money into large-scale concentrating solar heat and power systems, solar district heating plants or photovoltaic fields, they need to be able to rely on data sets to include the uncertainty and variability of input information. Financial institutions do like to know in what way these factors can impact revenue flows in financing, so researchers of IEA SHC Task 46, Solar Resource Assessment and Forecasting, have spent several years analysing various approaches to the topic. The flow chart of the financing model shows that solar resource data is essential to a proper assessment of the average power or heat generation per year as well as the range of variability over several years. SHC Task 46 is a five-year collaborative effort (2011-2016) with support from the IEA SolarPaces Programme (Task V) and the IEA Photovoltaic Power Systems Programme (Task 14).
Chart: Manuel Blanco, SolarPaces
 

China: Himin’s Largest Solar Process Heat Installation

Submitted by Baerbel Epp on October 10, 2016
Himin Process HeatLast year, Chinese vacuum tube manufacturer Huang Ming internationally known as Himin Solar installed its largest system for solar process heat to date. The company said that it had set up a 9,903 m² installation in Shandong province in October 2015, a system which had since produced heat for a textile factory owned by the Ruyi Group. The RMB 12.46 million (EUR 1.66 million) project had been entirely financed by the customer, which had not received any public subsidies. Ruyi had had the plant built because of a lack of electricity. “The local government had restricted electricity supply to Ruyi, which meant that the business could no longer fulfil its annual output targets,” stated a press release by Himin.
Photo: Himin
 

South Africa: Solar Green Beer Production Creates High IRR

Submitted by Baerbel Epp on September 14, 2016
CBC Installation South AfricaSouth Africa’s solar process heat installations remain profitable when they have to compete against other heat sources, such as diesel, paraffin, petrol or gas, the Centre for Renewable and Sustainable Energy Studies (CRSES) at Stellenbosch University, South Africa, has concluded in a recently published paper. The researchers at the CRSES conducted a feasibility study of a 120.7 m² collector field that was to cover 60 % of the existing hot water requirements of Cape Brewing Company (CBC) based in Suider-Paarl, Western Cape, and analysed ten proposals submitted after the company’s invitation to tender in January 2015. South African E3 Energy won by offering an installation with a levelised cost of energy of 7.9 EUR cents/kWh, an internal rate of return of 16.7 % and a payback period of 9.3 years. CBC´s daily hot water demand is estimated to be 7,000 litres at 85 °C during 245 days a year, i.e., during a full year except for weekends, public holidays and two weeks of summer holidays. The system went into operation in November 2015 and the COO of CBC, Andy Kung, seems satisfied with the performance and the energy saving it offers. 
Still image taken from the short film
 

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