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Solar Cooling

First cooling installation on Indian government building

Submitted by Baerbel Epp on April 10, 2018
Photo: VSM SolarGujarat State Electricity Corporation set up a solar thermal air conditioning system as part of its clean energy initiative last August. The installation offers a capacity of 150 tons of refrigeration (528 kW) to cool the Gandhinagar Thermal Power Station’s office building in Gujarat state in western India. The total investment, including the collector field, mounting equipment, chiller and hot water storage tanks, amounted to Indian Rupee (INR) 52 million, or around EUR 0.7 million, which corresponds to specific costs of 1,327 EUR/kW. 
Photo: VSM Solar

Financial support for concentrating solar systems extended until 2020

Submitted by Baerbel Epp on March 14, 2018
Photo: HoneywellThe “order” published by the Indian Ministry of New and Renewable Energy on 26 February 2018 put an end to the uncertainty which had pervaded the industry. In the 2-page document, the ministry pledged to continue its investment subsidy programme for concentrating solar thermal systems. The target until March 2020 is 90,000 m² of collector area. The financial year 2017 to 2018, during which 20,000 m² were planned to be subsidised, is almost over.
Photo: Honeywell
 

Solar cooling increases annual solar fraction

Submitted by Baerbel Epp on February 24, 2018
Task 53 1Solar cooling could be an effective way to increase the annual solar fraction of domestic hot water production and prevent the solar system from overheating in summer. Under the aegis of the IEA Solar Heating & Cooling Programme, researchers from Task 53, New Generation Solar Cooling & Heating Systems, have written a new book, titled The Solar Cooling Design Guide: Case Studies of Successful Solar Air Conditioning Design. It includes a detailed case study of two buildings containing offices and flats in Montpellier, France. The on-site 240 m² flat plate collector system powers a 35-kW absorption chiller to achieve a 70 % solar fraction in annual hot water production (see photo). Between November and March, the system continues to provide around 40 % of the heating energy to meet hot water demand.
Photo: Tecsol/Serm
 

IKEA stores begin to switch over to solar heating and cooling

Submitted by Baerbel Epp on February 13, 2018
Ikea SingaporeIKEA, one of the world´s biggest home furnishing retailers, has demonstrated a strong, long-term commitment to climate protection. By 2020, the company intends to generate as much energy from renewables as it consumes in day-to-day operations. While most of the electricity is now generated from renewable sources, IKEA’s store managers have not lost sight of the heating part of the equation. Two locations, one in Singapore (see photo) and one in the Russian Omsk region, have recently announced the completion of new solar heating and cooling installations.
Photo: S.O.L.I.D.
 

How to approach green construction in the tropical zone

Submitted by Baerbel Epp on December 11, 2017
Dr Gao BCA SingaporeWhile nearly zero energy projects in Europe focus on reducing heat demand, green buildings in tropical Singapore require lower cooling loads. To study and discuss methods to meet cooling needs, construction and energy experts from all around the world met in Singapore in late October for a two-day workshop organised by the Building & Construction Authority Singapore (BCA) and the IEA’s Buildings and Communities Programme (EBC). The aim of the Future Buildings Forum (FBF) 2017 was an agreement on strategic R&D priorities for Transforming Cities in Hot and Humid Climates Towards More Efficient and Sustainable Energy Use.
Photo: BCA
 

EU Funding for Solutions to Decarbonise Heating and Cooling Market

Submitted by Baerbel Epp on November 19, 2017
Horizon 2020A search for ‘solar thermal’ in a recently published 195-page document titled Secure, Clean and Efficient Energy will not return encouraging results (see the attached document). The publication by the Horizon 2020 Work Programme 2018-2020 shows only 6 entries in total. “Solar thermal is definitely not a priority of the new programme,” said Daniel Mugnier, Head of R&D at French engineering services company Tecsol. “And even if the European Solar Thermal Technology & Innovation Platform were to try to promote several hot topics, there’s only one call [LC-SC3-RES-7-2019 on solar process heat] dedicated to the technology.”
 

SHC 2017: Largest experts’ meeting on integrated solar heating and cooling

Submitted by Baerbel Epp on November 8, 2017
SHC2017_1500 experts from more than 50 countries attended the 5th International Conference on Solar Heating and Cooling (SHC) in Abu Dhabi, UAE, from 30 October to 2 November 2017. It was the first time that this biennial conference by the IEA’s Solar Heating and Cooling Programme had been organised jointly with the Solar World Congress by the International Solar Energy Society (ISES). The new partnership resulted in 2017’s largest experts’ meeting on integrated SHC solutions for buildings, industry, cities, regions and utilities, and in over 300 presentations.
Photo: Masdar Institute at Khalifa University of Science and Technology
 

Belo Horizonte – Brazil´s Solar Capital

Submitted by Baerbel Epp on October 25, 2017
Belo HorizonteBelo Horizonte, a municipality about 600 km north of Sao Paulo in the state of Minas Gerais, is also known as the solar capital of Brazil. Not only does it have a population of about 2.5 million, but solar water heater installations on many of its high-rise multifamily buildings. The photo shows one example, a block of flats for the wealthy middle class. The roof is completely covered in solar water heaters, which meet around half of the annual hot water requirements. This article will present the main drivers of an exciting market development in Latin America: a university research group specialised in solar heating and cooling, committed system planners, strong manufacturers and a pro-solar state utility.
Photos: Bärbel Epp
 

Slovenia: On the Path to Renewable District Heating

Submitted by Baerbel Epp on October 2, 2017
Rok SunkoDistrict heating networks supplied by renewable energy sources (RES) are widely recognised today as one of the most effective ways to decarbonise the heating sector. The EU’s CoolHeating project has been supporting the implementation of small, modular renewable heating and cooling grids for towns in southeastern Europe by transferring knowledge from leading countries such as Austria, Denmark and Germany to newcomers, for example, Bosnia-Herzegovina, Croatia, Macedonia, Serbia and Slovenia. It has also led to the publication of a handbook – Small modular renewable heating and cooling grids – available in seven languages (see the attached PDFs). Solarthermalworld.org talked to Rok Sunko (see photo) from one of the project partners, Skupina Fabrika about current developments and the outlook of RES district heating in Slovenia. The company is a Slovenian-based R&D business focusing on renewables, IT solutions and branding.
Photo: Skupina Fabrika
 

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