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Positive Energy Districts

Step by step, the Bulgarian city of Smolyan is aiming to become an energy-positive city

At the beginning of October 2023, the EU project +CityxChange came to an end with a final conference in the Norwegian city of Trondheim. Since its launch, the two lighthouse cities Trondheim (Norway) and Limerick (Ireland), together with their so-called follower cities Alba Iulia (Romania), Pisek (Czech Republic), Võru (Estonia), …
IEA SHC Solar Academy training in Cape Verde with high visibility

IEA SHC Solar Academy training in Cape Verde with high visibility

The IEA Solar Heating and Cooling Programme pursues a multidimensional approach to support the market transformation of solar cooling. This includes training for entrepreneurs from the installation industry and energy experts from administration at a national level. The photo shows solar cooling expert Dr Uli Jakob during a two-day specialized …
Decarbonization – a winning card for industry

Decarbonization – a winning card for industry

Decarbonization of heat in industry is now getting a lot more attention in Brussels. The Member of Parliament Beatrice Covassi together with Solar Heat Europe organized an event at the EU Parliament on 11 October under the title “Enabling industrial decarbonization”. The 10 MW solar industrial heat plant at malt …
Technical tour to Europe's largest solar industrial heat plant at Heineken Spain

Technical tour to Europe’s largest solar industrial heat plant at Heineken Spain

The inauguration of the 30 MW parabolic trough plant at the Heineken factory in Seville, Spain, on 30 September 2023 was exactly on time. The investor and plant operator Engie España had to put the plant into operation before the end of September in order to receive the extensive subsidy …
guaranteed solar heat yields

Guaranteed yields are standard for new solar district heating plants in Germany

Solar thermal energy is still unknown territory for many district heating companies. Contractually guaranteed solar heat yields from the turnkey provider of the collector field are therefore the rule and mitigate the risk for the investor. We spoke with Christoph Bühler, Division Manager at the German SDH plant designer Ritter …
Solar energy in wastewater treatment

“There is high potential for using solar energy in wastewater treatment”

In a circular economy the efficient supply of carbon-free energy and the recovery of resources as well as the treatment of wastewater must go hand in hand. In the IEA SHC Task 62 on Solar Energy in Industrial Water & Wastewater Management more than 50 experts worked intensively together to …
high-solar-fraction buildings

Demo projects of high-solar-fraction buildings carefully analysed

The IEA Solar Heating and Cooling Programme addresses the question of what is needed to reach a high degree of self-sufficiency in solar energy buildings and blocks. A research group within the IEA SHC Task 66 on Solar Energy Buildings has identified 20 completed or planned mostly residential building projects …
New developments in geomembranes

New developments in geomembranes for pit heat storages

Large solar thermal systems need large heat storage capabilities. Especially if the solar heat is to contribute significantly more than 25 % to a district heating network. Pit thermal energy storage (PTES) is a cost-effective way to build large heat storage facilities with 100,000 m3 and more. A key component …


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Research & Innovation