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Newsletter December 2021

Highly automated factory for building-integrated polymer collectors 

A fully automated production line for solar collectors with polymer absorbers started operation at Inavanta Solar in Jevnaker, Norway. An investment of EUR 4 million created a production line with an output of 600,000 m2 of collector area per year, which corresponds to 420 MW of solar thermal capacity. The distinct advantage of using polymers in absorber production is that they provide greater flexibility in collector design and allow for highly automated manufacture, which brings costs down. The collectors can be made to any length between 2 m and 6 m, at a set width of 60 cm, and are used in building integration projects. A best practice example is Bjørkelangen school (see photo), where the collectors are placed in the south façade of the roof structure to preheat the school's hot water. (Photo: Inaventa Solar)
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Founders of Clean Heat Forum contemplate a variety of strategies

During COP26 in Glasgow, the UK government launched a Clean Heat Forum to accelerate the decarbonisation of heat used in buildings. “As the UK, we want to share our policy experiences with others and use the forum as an opportunity to learn in areas where we're still working out the best way forward,” Lord Callanan, the UK Energy Minister, said in his opening speech.

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Between three and eight million heat pumps in 2030

The German heat pump industry expects high growth rates in the next years. During the 19th Heat Pump Forum on 24/25 November in Berlin heat pump industry representatives emphasised the fact that installation capacities will most probably become the bottleneck when scaling up the heat pump market.

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Solar district heating on the starting blocks
by Alejandro Diego Rosell

The Spanish SDH market is still in its infancy. Among the 500 heat networks in operation only seven use solar heat. The good news is that SHD is one of the eligible technologies within the new national grant scheme PREE, which has a budget of EUR 400 million until 2023.

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Big plans for heat pumps but not for solar hybrid systems

The Dutch association Holland Solar is disappointed about the latest proposal from the Ministry for Economic regarding the national subsidy scheme ISDE. The ministry announced plans to increase investment grants from 20 to 30 % by January 2022 for hybrid heat pump systems in combination with gas boilers, but does not mention solar thermal or PV-thermal as eligible technologies for the increased subsidy rates.

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#EnergyEfficientLighting: Dynamic research group publishes 16 reports

The success of highly energy-efficient lighting designs hinges on more than technological ingenuity. Other key make-or-break factors are smart control strategies and the interaction of lighting users with the built environment.

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New tool provides over 150 solutions for historic building retrofits

A new web application named HiBERtool helps practitioners find the perfect solution for the conservation of historic buildings. The tool explains more than 150 retrofit measures, which range from increasing a building’s energy efficiency to providing solar energy on site.

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Launch of Solar Thermal Yearbook 2021

Solar thermal energy is indispensable for the energy transition, but just as indispensable is informing the interested public about the state of the art and the wide range of possible solar heat applications. This is the motivation of the editorial team for launching the first English language edition of the Solar Thermal Yearbook Solare Wärme.

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