100% RES District
heating & cooling
citizen ownership models
renewable energy sources
industry prosumer approach
building retrofitting planning
low-temperature DHC networks
industrial surplus heat
improvement of legal and
organisational framework

Latest News

SDHp2m Coaching Videos

SDHp2m stands for Solar District Heating (SDH) and actions from Policy to Market. The project addresses market uptake challenges for a wider use of district heating and cooling systems (DHC) with high shares of RES, specifically the action focuses on the use of large-scale solar thermal plants combined with other RES in DHC systems.

More information are available on the Opens external link in new windowproject-website.

Coaching Videos

Within the SDHp2m project, coaching webinars are held on several important transnational topics identified.

The first coaching webmeeting dealt with the topic of

Solar and biomass district heating

SmartReFlex project brochure

In the area of "project results" the SmartReFlex brochure is now available for downloading!

21.02.2017 Free Webinar “Action plans for renewable district heating: Examples from European Regions”

Developing and implementing an integrated strategy for heating and cooling at political level is a complex process and its success in relevance and implementation depends on a series of influencing factors. Through this webinar, organised jointly by two European projects: progRESsHEAT (Opens external link in new and SmartReFlex, three practical experiences coming from different European Regions will be reported and discussed. The most crucial aspects which will be analysed are the following: which were the main barriers in the development of the strategies? What would be done in the same way and what would be done differently if a new strategy had to be developed and implemented one more time?

Which measures should be taken in order to assure high relevance and commitment to the heating and cooling strategy in the region / city? Which measures should / could be taken to monitor the implementation of the developed heating and cooling strategies? Which plans and timelines exist for updating existing strategies and how is this communicated to citizens and elected representatives? Which steps could and should be taken by local authorities / actors to develop RES-H/C projects on the basis of an existing strategy?

Speakers and presentation

  • Xavier Dubuisson, XD Consulting,“ Heat planning for Ireland counties”
  • Oliver Miedaner, SOLITES “Renewable district heating in the German Regional State of Baden-Württemberg”
  • Joan Estrada, “Strategic planning on renewable district heating in Catalonia”

Free Registration and further information are available here:

Opens external link in new window

Recording of the Webinar: Renewable district heating and local heat planning

25.01.2017 Webinar "Renewable district heating and heat planning"

On the 25th of January is the next SmartReFlex webinar "Renewable district heating and heat planning".

The free webinar is again organized in cooperation with the International Solar Energy Siciety (ISES) and will report on heat planning, what is a crucial activity to ensure that renewable energy sources available in an area adequately exploited. The webinar will explore this topic with a special focus on district heating solutions by reporting the long-term experience of a Danish Region in the involvement of its Municipalities on heat planning as well as by showing two examples of practical use of heat mapping in cities in Italy and in the UK.

Speakers and presentation

  • Louise Langbak Hansen, Central Denmark Region: “Strategic energy planning in Central Denmark Region”
  • Alice Dénarié, AIRU / Politecnico di Milano: “Mapping heat demand and supply: Examples from Italy”
  • Simon Wyke, City of London: “Mapping London’s Secondary Heat Resource”

All details and the link for registration are available in the PDF invitation and on the ISES website here.

Workshop Update Italy

The workshop program and presentations hold with the Italian project partners were updated and are available at the Italian results page.

Recording of the Webinar “Think big - Design rules and monitoring results of solar district heating systems”

The webinar presentations are available:

  1. Initiates file downloadThe SmartReFlex Project (Riccardo Battisti, Ambiente Italia)
  2. Initiates file downloadMonitoring results and performance of seasonal heat storage (Thomas Schmidt, Solites)
  3. Initiates file downloadDistributed solar district heating (Robert Söll, Solid)
  4. Initiates file downloadMonitoring and simulation of large solar district heating fields (Jan Erik Nielsen, PlanEnergi)

more information and intresting news are available under

Presentations of the SmartReFlex workshop

The presentations of the SmartReFlex Workshop "Renewable district heating and cooling" are available and can be find Opens internal link in current windowhere.

06.12.2016 Webinar “Think big - Design rules and monitoring results of solar district heating systems”

In cooperation with the free webinar “Think big - Design rules and monitoring results of solar district heating systems” is provided. It will report on the use and performances of seasonal heat storage units, distributed SDH plants connected to specific points of the district heating grids and the large, centralized SDH plants employed in Denmark.

Speakers and presentation

  • Thomas Schmidt, Member of the Management at the German research institute Solites, “Monitoring results and performance of seasonal heat storage”
  • Robert Söll, Head of Project Development at the Austrian SHC turnkey system supplier S.O.L.I.D., “Distributed solar district heating: Built examples in Austria”
  • Jan Erik Nielsen, Project Manager at Danish consultancy PlanEnergi and Manager of the Solar Keymark Network and the Global Solar Certification Network, “Monitoring and simulation of large solar district heating fields: An example from Denmark”

Free Opens external link in new windowRegistration and further information are available here: Initiates file downloadEnglish, Initiates file downloadGerman, Initiates file downloadPolish

4DH Video: Smart heating systems are necessary to lower our CO2 emissions and achieve 100% renewable energy

The 4DH Research Centre, a unique collaboration between industry, universities and the public sector, with the intention to investigate the potential for and develop 4th Generation District Heating (4GDH), published a video with related content to "SmartReFlex".

More information and the complete version of the video can be find Opens external link in new windowhere.

For a first idea the Trailer is down below.

24.-25.11.2016 Workshop and site visits - "Renewable district heating and cooling" - Kolding (DK)

From 24th to 25th of November the final event of the EU-financed project „SmartReFlex“ take place in Kolding (DK). External participants are very welcome and the event is free of charge.

Besides the presentations of the key findings and experiences in the beginning of the first day, there will be room for discussion and debates. Focus is on further steps towards implementation, including financial support, as well as replication to other regions. Before the first day ends with a common dinner, two site visits will be provided.

  1. Vejen district heating plant. Consumer-owned, established in 1960. Straw boiler, wood chips boiler, surplus heat, heat pumps, gas and oil boilers.
  2. Hejnsvig district heating plant. Consumer-owned, established in 1992. Solar thermal, wood pellet boiler, natural gas engine, natural gas boiler.

On the second day, depended on the number of participants, two additional site visits will be provided.

  • District heating plant with solar thermal and seasonal heat storage (pit thermal energy storage)
  • District heating plant with solar thermal and heat pump.

For more information klick Initiates file downloadhere.

Recording of the Webinar "Renewable district heating – Small local grids and cooperative utilities"

Webinar presentations

  • Per Alex Soerensen, PlanEnergi
    "Cooperative companies running district heating grids: The Danish experience"
  • Oliver Miedaner, Solites
    "Energy villages in Baden-Württemberg: Solar thermal and biomass for small scale district heating"
  • Per Kristensen
    "Braedstrup: The renewable district heating success story from Denmark"
  • Sponsor Savosolar

26.10.2016 Webinar "Renewable district heating - Small local grids and cooperative utilities"

In cooperation with ISES (International Solar Energy Society) the free webinar ”Renewable district heating – Small local grids and cooperative utilities” is provided.

Wednesday 26.10.2016
14:00 - 15:30h GMT (16:00 - 17:30h CEST)

Speakers and presentation

  • Per Alex Soerensen, PlanEnergi "Cooperative companies running district heating grids: The Danish experience"
  • Oliver Miedaner, Solites "Energy villages" in Baden-Württemberg: Solar thermal and biomass for small scale district heating"
  • Per Kristensen "Braedstrup: The renewable district heating success story from Denmark"
  • Riccardo Battisti, Ambiente Italia – Moderator


For free registration follow the link:

Further information can be found here:

29.06.2015 SDH Conference 2015, Toulouse

Solar thermal plants in the megawatt range for district heating

Large-scale solar thermal plants up to 100 megawatts are growing into competitive and environmentally friendly heat supply systems for district heating. About 160 experts and market actors from 20 countries met at the 3rd International Solar District Heating Conference on 17th and 18th of June in the French city of Toulouse, to exchange about new developments and market strategies. 

District Heating and Cooling is increasingly recognised as a fundamental technology to decarbonise the heat sector and reinforce energy security. In this context, solar district heating will play an important contribution in the near future because it combines efficiency, renewable energy and reliance on available local resourcessays Alessandro Provaggi, Head of the DHC+ Technology Platform at Euroheat & Power, the European District Heating association. 

The numerous large-scale solar thermal plants currently being installed in Denmark show that this is possible. „The yearly growth in the current and future years amounts to around
150 megawatt and the largest plant currently in planning already announced a collector area of 150 000 m²
” reports Per Kristensen from the Danish District Heating Association.
Just as impressive is the concept for the “solarisation” of the urban district heating of Graz, presented for the first time. According to Moritz Schubert from the supplier Solid, around
500 000 m² collector area are being discussed, which would cover 20% of the district heating supply of the Austrian city.

„However, a major element of our conference is represented by the new markets in Europe. We deliberately address decision makers and market actors in regions with good boundary conditions” says Thomas Pauschinger, co-organisator of the conference from the Steinbeis Research Institute Solites. New solar district heating initiatives and first realized plants have been presented by speakers from France, Italy and Spain. The national French workshop organized in the frame of the event by Amorce, CEA INES and Tecsol has also been very successful. Around 60 representatives from political entities, communes, suppliers and market companies discussed about the costs and opportunities for solar district heating in France.

Source: Solites

An excursion also led to the first French solar district heating plant in Balma. With around 500 m² evacuated tube collectors from the company Viessmann, and a
1,25 MW biomass boiler, the French company Cofely supplies a new housing area via a district heating net.

Furthermore, the speakers of the
3rd International Solar District Heating Conference presented several new projects and technical concepts, regarding for example the feed-in of solar heat in existing district heating nets, but also experiences with innovative business and financing models. The numerous participants from the industry sector presented their product innovations, especially new developments for large collectors, in a dedicated industry session.
The next edition of the conference will take place in autumn 2016 in Denmark.

Source: Solites

The conference was organized by the French association for municipalities and local authorities Amorce in cooperation with CEA INES, Tecsol and the Steinbeis research institute Solites with the support of Toulouse Métropole as well as the exhibitors Clipsol, Greenonetec and KBB Kollektorbau. It was organized in the frame of the European project SDHplus.

About SDHplus:

The SDHplus project aims at analyzing practical application opportunities for solar thermal energy in district heating at international level, for which additional benefits and synergies result from specific boundary or operating conditions and developing implementation and business models together with relevant market actors (heat suppliers, municipalities and housing sector) to accompany them towards pilot implementation. 18 partners from 13 European countries work together in this project, among them district heating associations, companies and research institutes. The project started in July 2012 and continues until June 2015. It is supported by the European Union in the frame of the IEE Intelligent Energy Europe program.

About Amorce:

Amorce is the French national association for municipalities, local authorities and companies for waste, energy and district heating management. Amorce organized the 3rd International Solar District Heating Conference.


The CEA is the French Alternative Energies and Atomic Energy Commission. INES is France’s national research and development center for solar energy and building energy systems. CEA INES co-organized the 3rd International Solar District Heating Conference.

About Tecsol:

Since 1983 Tecsol is an independant engineering office specialized in solar energy.  Tecsol co-organized the 3rd International Solar District Heating Conference.

About Solites:

Solites is a research institute for solar and sustainable thermal energy systems within the Steinbeis network. Solites coordinates the international project SDHplus and co-organized the 3rd International Solar District Heating Conference.

Project Coordinator

Mr. Riccardo Battisti
Ambiente Italia
Via Carlo Poerio 39,
20129 Milano (Italy)

Phone: +39 3939413523

Co-funded by the Intelligent Energy Europe Programme of the European Union
01/03/2014 – 01/03/2017
contract no.
IEE/13/434/ SI2.674873