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News, Domestic Hot Water and Heating

Carefree heat supply package plus green marketing

Submitted by Baerbel Epp on September 18, 2018
Photo: SWANewly founded SWA Solar Wärme Austria is offering solar heat supply to hotels, sports centres, car washes and manufacturing companies. Clients pay individually agreed-on rates, which are up to 20 % lower than current prices and are guaranteed for 20 years. SWA provides a “carefree heat supply package”, with the company financing, installing, operating and monitoring a solar thermal system. According to Managing Director Birgit Rutter, SWA’s first system with 77.5 m² of collector area had come online at a golf club in Klagenfurt-Seltenheim, Austria, a few days ago (see photo). Computer simulations had shown an annual solar yield of 48,000 kWh.
Photo: SWA

ESCO model grows in popularity in South Africa

Submitted by Baerbel Epp on September 4, 2018
Photo: BSW Solar
“Our clients are cash flow positive from day one,” South African company Energy Partners claims on its website. Up until now, it has been offering heat and steam purchase agreements, mainly on coal boilers, to industrial and public customers. “Purchase contracts for solar heat in combination with fossil fuel boilers could be part of our portfolio in the future,” Johan Kritzinger, Head of the Steam division at Energy Partners, said after participating in a policy workshop organised by the partners to Solar Payback, the South African National Energy Development Institute (Sanedi) and the Southern African-German Chamber of Commerce and Industry (SAGCCI) . It took place on 24 July in Pretoria.
Photo: BSW Solar

Slim all-black collectors: the next generation of solar heating

Submitted by Baerbel Epp on September 3, 2018
Photo: HRsolarIn March, Dutch-based HRsolar began manufacturing a completely redesigned collector on a fully automated production line. Called Nero, the black-coloured unit is 40 millimetres thick – as slim as a photovoltaic panel. According to the manufacturer, the aim had been to “reinvent the concept of solar thermal, since it is increasingly being integrated with other sustainable technologies, such as photovoltaic systems and heat pumps.” Nero’s width and length correspond to the dimensions of commonly available PV panels, which measure 1,640 by 990 millimetres. 
Photo: HRsolar

Successful solar energy bylaw in Bengaluru, India

Submitted by Baerbel Epp on August 17, 2018
Photo: Jaideep MalaviyaBengaluru Electricity Supply Company, a public utility also known as BESCOM, has been successful in implementing a bylaw to encourage the use of solar energy. Since 2009, 1,234 million m² of collector area had been installed in Bengaluru and had supplied energy equivalent to about 611 million kWh of electricity required for showering each year, BESCOM has said when asked about the success of the project. The massive increase in the number of solar water heaters has been one of the most important measures to combat the city’s chronic power shortage. The photo shows a typical solar thermal installation on the roof of a high-rise building in Bengaluru.
Photo: Jaideep Malaviya

Concrete slabs store thermal energy and heat homes

Submitted by Baerbel Epp on August 14, 2018
underfloor heating systemMany building owners consider roof-integrated solar systems to be a tried-and-true way of saving as much on their heating bills as they can. A research project called solSPONGEhigh and developed in Austria has shown: When using thermal mass, i.e., the capacity of a building to store heat in ceilings, walls and foundations, solar technology can meet more than half of the yearly demand for space heating and hot water – large storage tanks not required. During construction of the house, meander-shaped piping, like the one in an underfloor heating system, is installed near the steel beams inside concrete slabs (see image). 
Photo: Private

3,300 m² for sports club in Brazil

Submitted by Baerbel Epp on August 8, 2018
Photo: EhSolA 3,300 m² solar field is currently being built at one of Minas Tênis Clube’s four locations in Brazil. The system at the sports club in Belo Horizonte, in the province of Minas Gerais, is planned to meet 70 % of the water heating demand for five pools, including an Olympic one, and three large changing rooms. Commissioning is scheduled for the end of August. Minas Tênis Clube is private non-profit organisations and one of the biggest sports clubs in the country. At its facilities, open seven days a week, it provides services to around 73,000 members with 1,000 employees. 
Photo: EhSol

Lessons learned from urban solar projects

Submitted by Baerbel Epp on July 25, 2018
Task 51Cities and municipalities are thought to play a decisive role in transforming energy systems. Urban planners, municipal stakeholders and consulting firms need case studies to demonstrate that solar energy can be integrated successfully into new and existing urban neighbourhoods. It is why Solar Energy in Urban Planning, an international research group, has compiled data on 34 showcases in 10 countries for its latest lessons learned report (see link at the end of the news article), created under the aegis of the IEA Solar Heating and Cooling Programme.
 

New coating manufacturer in China

Submitted by Baerbel Epp on July 5, 2018
Photo: SanqiaonengLast December, Shandong-based Sanqiaoneng introduced a new line of absorber plates, which had taken five years to develop. According to the company website, Singaporean investment holding company Rowsley had spent USD 5 million on the design of a selective coating for these metal plates. Professor He Tao from the China Academy of Building Research (middle of the photo), visited Sanqiaoneng’s coating plant in late January. 
Photo: Sanqiaoneng

Crowdfunding the Heat Changers campaign

Submitted by Baerbel Epp on July 2, 2018
Photos: Heat ChangersThe German Solar Heating Initiative has put together a crowdfunding project to fund a consumer campaign called Heat Changers. Its initiators, Marisol Oropeza and Stefan Abrecht (first and second image from top left), have already brought some well-known supporters on board, including Markus Elsässer, Founder and Managing Director of Solar Promotion and organiser of the Intersolar Europe (bottom left), and Australian Ken Guthrie, formerly chair of the IEA Solar Heating and Cooling Programme (top right). The funding deadline for the EUR 35,000 project on kickstarter.com is 19 July 2018. The money is intended to be used for a six-month solar heat promotion campaign via social media, a website and other online tools.
Photos: Heat Changers

Europe’s first-ever renewable heating and cooling target

Submitted by Baerbel Epp on June 26, 2018
Renewable Energy Directive for 2030After night-long negotiations, the European Parliament and Council have reached an agreement on the Renewable Energy Directive for 2030. At long last, discussions that started in November 2016 came to a close in the early morning of 14 June. The new regulatory framework stipulates that a 32 % renewable energy target is to be achieved by the EU in 2030. “This is a substantial increase compared to the 27 % originally proposed by the European Commission,” said Pedro Dias, Secretary General of Solar Heat Europe/ESTIF. “Moreover, the Commission can now take corrective action if this overall target is not met.”

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