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flat plate collectors

Combining the strengths of collector technologies

Submitted by Baerbel Epp on July 20, 2018
Task 55 of the IEA SHC Programme is currently studying the benefits of systems equipped with both flat plate and parabolic trough collectors to supply thermal energy to district heating networks. Preliminary results from a project in Taars, Denmark, have been encouraging, indicating how their combined strength can be an asset across a wide range of solar district heating applications. The research is being conducted as part of the Energy Technology Development and Demonstration Programme, supported by the Danish Energy Agency.
Photo: Aalborg CSP

World’s largest flat plate collector manufacturers in 2017

Submitted by Baerbel Epp on March 19, 2018
The 2017 ranking of the world’s largest flat plate collector producers clearly shows the market dominance of Chinese companies. Even second-ranked Greenonetec, an Austrian collector manufacturer, is now majority-owned by the Chinese-based Haier Group. The corporation acquired 51 % of the manufacturer’s shares on 18 May 2017. The largest European flat plate collector producer was heating technology supplier Bosch Thermotechnik, although it remained at a certain distance from the top four. Business at Bosch Thermotechnik suffered from declining solar hot water markets in Germany (-16 %) and Brazil (-18 %). Nearly all the companies outside Germany increased production last year.
Source: Data supplied by manufacturers

Worldwide: Flat Plate Collector Manufacturer Ranking

Submitted by Baerbel Epp on December 21, 2016
Collector Ranking 2015The ranking of the largest flat plate collector manufacturers is headed by the same four companies as last year: Greenonetec from Austria, Fivestar from China, Soletrol from Brazil and Bosch Thermotechnik from Germany. But aside from the continuity at the top, last year shows what different paths some markets have taken. Whereas Australian-based Solahart, one of the pioneers of global solar collector trade, as well as Soletrol, the largest Brazilian manufacturer, have lost ground, several others – such as Sunrain from China, Hewalex from Poland and Eraslan from Turkey – were able to report above-average growth for 2015 and rise through the ranks. The produced collector area of the overall 21 companies added up to 4,212,462 m². The number was 21 and not 20 because the last and second-last spot were occupied by companies with equal production output.
Chart: solrico
 

Project Idea Note: Solar Water Heating Fee-For-Service Program in the Caribbean (2009)

Submitted by Raquel Ponte Costa on June 21, 2015

This document serves as a guide or outline to potentially creating a fee-for-service program in the Caribbean to deliver solar thermal water heating. It was created by The Renewable Energy & Energy Efficiency Partnership (REEEP). The goal is for a utility company servicing both residences and businesses in the Caribbean to start offering solar thermal water heating as a part of their energy mix. The utility company in question can use money from Certified Emission Reduction (CER) sales to better leverage the investment from investors.

Solar Thermal Trends, Performance-Based Incentives, and RPS (2012)

Submitted by Raquel Ponte Costa on June 20, 2015

This presentation was created by the Clean Energy States Alliance (CESA) and was presented originally as a webinar. It focuses on trends in solar thermal and the implementation of solar thermal technology as part of renewable energy statewide portfolios. In 2011, the largest growth in the use of residential solar thermal water heating took place in Hawaii. However, there was also steady growth in commercial use in states such as California.

Laundromat Needs Create Thriving Solar Thermal Business (2008)

Submitted by Raquel Ponte Costa on May 30, 2015

This case study was written by Mondial Energy. It follows the company’s change from originally being a laundromat with a solar thermal hot water heating system to a successful solar thermal company.

A Solar Design Manual for Alaska: Solar Technologies (2010)

Submitted by Raquel Ponte Costa on April 7, 2015

This report was written by Alaska Sun, which is a coalition in Alaska dedicated to furthering the use of solar energy in their state. It comes from their publication “A Solar Design Manual for Alaska” and focuses on various technologies that are commonly used in solar thermal systems.

Flat plate collectors are described as one of the most common solar thermal technologies and the report sketches one out in a diagram. Heat transfer fluids, which make many solar thermal systems possible, are covered and have the characteristics of what makes a good heat transfer fluid listed.

China: Flat Plate Collector Share is Growing

Submitted by Baerbel Epp on July 1, 2013

Prof Guangming Xie is a well-known expert on the solar thermal industry in China and Executive President of the China Solar Thermal Industry Federation (CSTIF). He had been a researcher with the Beijing Solar Energy Research Institute (BSERI) before he came to work in leading positions in the industry. Xie presented the latest publication from CSTIF at the Intersolar in Munich in the middle of June: the English-Chinese “Research Report on the Development of the Solar Thermal Industry and its Achievements over 20 years in China (2011-2012)”.
Photo: Bärbel Epp

India: Flat Plate vs Vacuum Tube Technology

Submitted by Baerbel Epp on November 19, 2012

Until now, the Indian solar thermal market has been dominated by flat plate collectors (FPCs). FPCs have several advantages, with the main being robust and long-lasting. In a price-sensitive market such as the Indian one, however, vacuum tube collectors (VTCs) have gained a foothold over the last years because the systems are 30% to 40% cheaper if the glass tubes are imported from China. Although there is no official data available, VTCs are said to have reached a 35% share in the Indian market. In the fiscal year 2011/2012, market volume reached a newly installed collector area of 1 million m² (see interview with Tarun Kapoor). The photo shows flat plate collectors on high-rise, residential buildings in western India.
Photo: Kaushal Solar

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