News and Events

Discover more about our demos in Verviers (Belgium)

Discover more about our demos in Verviers (Belgium) 882 640 SunHorizon Project

Name of the interviewee : Jean-Luc Pluymers – Groupement de Redéploiement Economique de Liège (GRE-Liège), Belgium

Demo site ID: 

Location: Verviers, Belgium

Type of building: 

  • Swimming Pool of Verviers – 4500 sq meter (2 swimming pools (one of 25 meters and a small one for children) + sport halls 
  • Hall Moray – Sport center of 1515 sq meters 

Climate: Average Climate

Technologies and partners involved in this demo site:

  • Swimming pool of Verviers: TP2 – Mixed solar assisted / parallel integration: 
    • HP boiler (BoostHeat) for DHW with existing gas boiler as back-up;
    • thermal output from solar hybrid PV-T (DualSun) to cover part of the heat demand from swimming pool and assist evaporator of boostheat for DHW. 
    • PV-T (from DualSun) will be added for electrictity production for local appliances. 
    • RatioTherm will participate as well to the project for the sensible thermal storage.
  • Hall Moray: TP1 – Parallel Integration
    • Thermal output from solar thermal (TVP Solar) to DHW tank with existing gas boiler as back up
    • Complementary DHW heat demand supplied by thermal compression HP
    • RatioTherm with sensible thermal storage.

Date of the demo site visit: December 13, 2018


The Sport Center demo site building (Hall Albert Moray) is a municipal facility (tertiary building) that has different spaces to develop all kinds of sportive activities.
The Albert Moray Sports Centers is a sports complex from 2006 and is located in rue des Chapeliers No. 2 in Ensival. The building has four gyms, where basketball, table tennis, fencing and martial arts can be practised. It also incorporates a cafeteria 

Swimming pool of Verviers: The Verviers swimming pool is located in the beautiful Fabiola park, a stone’s throw from the city centre. With a 25m long and 14m wide, the large neighbouring pool with a smaller and shallower pool, in which young children learn to get used to water.

The swimming pool, whose current building is composed of several distinct areas, has different architectural features. Those differences can be explained by different exploitation according to the zones: the swimming pool, the cloakrooms, the offices, sports halls, technical rooms. 

What are the energy challenges of your demo site?

For both demo sites, the energy challenge is the high energy demand and consumption. For the pool, there is a high level of heat. Current SunHorizon technology (BoostHeat) will not be able to supply all the energy demand.

From a technological point of view, it is planned to install 471 square meters of solar thermal panels on the pool roof, 200 square meters of thermal panels on the Moray Hall, 2 heat pumps of 20KW inside the pool and the Moray Hall and 2 tanks (Rathiotherm) on each of the sites.

Do you see any policy obstacles referred to SunHorizon technologies application, specifically related to the local/national regulations where the demo site is located and, more in general, at EU level?  

The only obstacles for the Sunhorizon technologies are the tendering procedures – if technical specifications are too defined, it is not possible to propose Sunhorizon technologies. There is a need for demonstration and dissemination about those new technology combinations. 

What is your motivation to participate in the project and which is your role?

GRE-Liege is an incubator of new project ideas. Its role is to foster innovation in the region. On top of it, Energy is one of GRE Liege development axis.

GRE-Liege often plays an intermediary role between public authorities located in the province of Liege and other large innovation projects as H2020 Project. It enables public authorities to participate in EU project. The GRE-Liège is very happy to be able to provide its assistance and expertise to municipalities in order to develop such projects.

Which are the expected benefits your company aims to demonstrate in the SUNHORIZON project?

The expected benefit of Sunhorizon is to identify new technologies to support GRE Liege public partners to lower their energy costs 

and be able to replicate the use of the technologies in other public buildings in the future, thus to optimize the energy consumption in public buildings.

Pictures of the demo sites:

Discover more about our demo site in St. Cugat (Spain)

Discover more about our demo site in St. Cugat (Spain) 449 337 SunHorizon Project

Interview to Mr. Víctor Martínez del Rey, Director of Urban Quality and Mobility Department of Sant Cugat City Council, Ajuntament de Sant Cugat del Vallès (AJSCV), Spain

Demo site ID: 

Location: Mira-sol Civic Center, in Sant Cugat del Vallès (Spain)

Type of building: Tertiary Civic Center. This building was built in two phases:
The first one was built in October 1996 / 1.268,69 m2
The second one was built in February 2006 / 2.440,25 m2 (demo site building).
Number of floors: 1
Structure type (roof): Structural roof-Deck+Roofmate insulation (4cm)+Roofmate insulation (4 cm)+gravel
Structure type (walls): Glass Reinforced Concrete
Occupancy: between 40-150 people

Climate: Mediterranean

Technologies and partners involved in this demo site: 

TVP Solar SA (TVP): solar thermal panels.
Fahrenheit Gmbh (FAHR): hybrid adsorption-compression chiller
Ratiotherm Heizung + Solartechnik Gmbh & Co. KG (RATIO): stratified thermal storage tank
Veolia Serveis Catalunya SAU (VEO): demo site responsible
Ajuntament de Sant Cugat del Vallès (AJSCV): demo site responsible

Date of the demo site visit: 1st of February 2019 – All the partners involved in Sant Cugat demo site visit checked the current heating and cooling installations and particularly the availablespace in the technical rooms (where we will install the H/C systems and the storage tank) and roof top space (for installation of solar collectors).


The Sant Cugat demo site building (Mira-sol Civic Center) is a municipal facility (tertiary building) that has different spaces to develop all kinds of cultural activities.

Mira-sol Civic Center offers: a wide program of courses and workshops; public cession of spaces; service to support entities and collectives of the neighborhood; revitalization of popular and traditional culture; child service activities; a stable cultural program with small-format shows.

It is located in Mira-sol neighbourhood of Sant Cugat del Vallès, a town close to Barcelona. The demo site building is divided in two structural areas, as it was constructed in two stages.

Currently, the heating and cooling installation (second stage building) is formed by the following equipments:
Reversible air to water heat pump: 93.6 kW (cooling capacity) – 96.3 (heating capacity)
Air handling unit: 110 kW (cooling capacity) – 67.78 (heating capacity)

Regarding the supply we have electricity (rate 3.0A with power P1: 65kW, P2: 65 kW,and P3). No Gas.

What are the energy challenges of your demo site?

In terms of energy the main purpose is to sectorize the air conditioning system according to the occupation (comfort temperature of each classroom), and  at the same time we want to reduce the consumption of air conditioning from machine that we currently have.

Do you see any policy obstacles referred to SunHorizon technologies application, specifically related to the local/national regulations where the demo site is located and, more in general, at EU level?

No, at local level the Municipality strategy and policy in terms of decarbonization and high efficiency refurbishments are completely aligned with the aims of SunHorizon project. 

At national and EU level can’t see any policy obstacles to develop the SunHorizon applications in our demo site.

What is your motivation to participate in the project and which is your role?

Since 2019, all the new buildings constructed by the Public Administration must meet the nZEB standards. This will also affect buildings where a deep renovation will be performed, since the regulations normally force to refurbish by using the same standards as for the new buildings. 

On the other hand, cities will play a major role in achieving the targeted energy and environmental objectives in Europe, by adopting specific actions.

Therefore, I consider interesting applying the SunHorizon technologies to Mira-sol Civic Center, coinciding with the H&C system renovation (sectorization of air conditioning system according to rooms occupation)

Which are the expected benefits your company aims to demonstrate in the SUNHORIZON project?

Is expected that the solutions applied in SunHorizon will rely on renewable, local energy sources to promote feasible alternatives to traditional fossil fuel-based solutions. The application of these solutions are expected to have a  positive impact in terms of: GHG emission savings and primary energy savings, among others. 
The share of energy consumption from RES increases the primary energy savings and the CO2 emissions savings considerably. Furthermore, it is expected that the thermal energy bill is reduced despite not increasing the investment cost.

Pictures of the demo site:

SunHorizon @webinar 19.12.2019

SunHorizon @webinar 19.12.2019 679 238 SunHorizon Project

Webinar “An innovative approach to thermal energy storage as self-sufficiency in buildings”

19th of December 2019 / 11:00 – 12:30 (CET)

🗓️ SAVE THE DATE! 19th of December 2019

For the webinar “An innovative approach to energy storage and self-sufficiency in buildings”

📌 19 December 2019

⏰ 11-12:30pm CET

🧐 projects presentations & debate

Organised by Chess Setup project in participation with ReLATED project, Fedarene, SunHorizon project, HYBUILD project

Register here

SunHorizon @HPSummit – 22/23.10.19

SunHorizon @HPSummit – 22/23.10.19 1024 512 SunHorizon Project


On the 22 and 23 October 2019 in Nuremberg (Germany) .

Come to the European Heat Pump Summit, and discover more about the SunHorizon project by visiting the booth Foyer Brüssels – no. 5.

The European Heat Pump Summit looks at the heat pump and energy system topics from an international perspective, with a focus in particular on the following: 

  • Current market developments
  • Research and development
  • Components and products
  • Heat pump applications and operation

You will find our colleagues from the European Heat Pump Association, ready to answer to all your questions.

SunHorizon video

SunHorizon video 150 150 SunHorizon Project

We are happy to present you the first SunHorizon promotional video, created in the framework of D8.4.

The video presents what are the project goals, technologies and targets.

Continue to follow SunHorizon channels to be always informed of the project updates.




SunHorizon General Assembly – M12

SunHorizon General Assembly – M12 680 510 SunHorizon Project

On the 18th and 19th of September 2019, SunHorizon consortium met in Le Bourget du Lac (France) for the M12 General Assembly, kindly hosted by our partner CEA.

In this occasion the 21 partners took the chance to present what have been implemented in this first year of the project and what are the next steps for the following 3 years of the project.

Particular attention was expressed on the 8 demo sites and in their upcoming technical activities.

In this first year all the activities have been realised smoothly, submitting 13 deliverables and 1 milestone.

SunHorizon @EREK international conference

SunHorizon @EREK international conference 734 280 SunHorizon Project


25-26.09.2019, Brussels (Belgium)

We are pleased to inform you that SunHorizon project will be exhibited at EREK international conference, on the 25th and 26th September 2019, in Brussels.

If you haven’t done yet, Register here, participate in the conference and stop by to visit the “Heat Pump Innovation Center” and ask questions about SunHorizon project.

We will be there to reach as many stakeholders as possible and answer to all your questions and curiosity about our technologies, project’s outcomes and next steps.

Don’t miss this opportunity.

See you there!

At the “Heat Pump Innovation Center” you will get the chance to know more about: SunHorizon, DryFiciency, Geoatlantic and Heat4Cool projects.

Publication about “Solar and Thermal energy” workshop

Publication about “Solar and Thermal energy” workshop 150 150 SunHorizon Project

On the last 7th of June 2019, SunHorizon project participated with other four H2020 projects (HYCOOLSHIP2FAIRTHERMOSS, and HYBUILD) to “Solar and thermal energy: Europe’s precious energy sources for efficient industries and buildings” workshop, organised in the framework of Sustainable Places (Cagliari – Italy).

The five projects are implementing the most social acceptance renewable energy technologies such as solar panels and heat pumps for both the residential and the industrial sectors, by reducing the energy consumption and increasing the thermal comfort and high performances in industrial processes.

After the workshop, the workshop authors published a paper about it on Proceedings platform – Proceedings 2019, 20 (1), 3

You can find the Abstract here:

In this workshop, we discussed the progress of five Horizon 2020 projects —HYCOOL, SHIP2FAIR, THERMOSS, SUNHORIZON and HYBUILD — all implementing solar thermal and renewable technologies for buildings and for the industrial sector. The discussion offered opportunities to identify and benchmark key challenges being faced by the projects, both technical and non-technical, and allowed to identify cooperation opportunities.

And the full publication, available here.


1ST SUNHORIZON NEWSLETTER 1024 341 SunHorizon Project

On the 13th of June 2019, SunHorizon first project newsletter has been published.

Check it out here.

If you want to be always updated on the project’s status and activities, register here.

Discover more about our demo sites in Germany

Discover more about our demo sites in Germany 1024 768 SunHorizon Project

Interview to Steven Paupe from BoostHEAT.

Demo site ID: 

Location: Berlin and Nuremberg (Germany)

Type of building:  

Nuremberg : 4 family residential housing (320m²), built in 1897 with limestone and brick
Berlin : 220m² house constituted of 2 apartments

Climate: temperate

Technologies and partners involved in this demo site: 

Nuremberg : Thermal CO2 heat pump (BoostHEAT), hybrid PV/T panels (DualSun), stratified thermal storage tank (Ratiotherm), monitoring (Schneider Electric), data collection (Checkwatt), modelling of the system (CEA)

Berlin : Thermal CO2 heat pump (BoostHEAT), High-Vacuum Flat Solar Thermal Panels (TVP solar), stratified thermal storage tank (Ratiotherm), monitoring (Schneider Electric), data collection (Checkwatt), modelling of the system (CEA)

Date of the demo site visit: 18 & 19 February 2019

Presentation of the demo site:

Two demo sites have been identified by BOOSTHEAT in order to implement SUNHORIZON’s technologies package in Germany : 

  • One in Berlin in a multifamily residential housing of 220m²
  • Another one in Nuremberg in a 4 family residential housing of 320m²

In Berlin, the house is composed of 2 apartments, near the city centre. From the visit, we didn’t identify any incompatibility with the future technologies integration and installation in the site. 
The narrow access to the basement can be an obstacle, but the technology partners already foresaw solutions on how to get in and set-up their technologies.

In Nuremberg, the house is constituted of 4 equal apartments (one per floor level), located near the city centre. The integration of all the technologies looks well established, but first we have to evaluate the structural integrity of the roof, in order to define the maximal weigh for the solar panels. 

What are the energy challenges of your demo site?

The two projects have high ambition in term of reduction of energy consumption and CO2 emissions reduction, while increasing the comfort level from centralized heat and DHW. The installation of the technologies in the two demo sites (DualSun, BOOSTHEAT, Ratiotherm, TVP solar…) have to be firmly fixed and easy to maintain, in order to have fewer and cheaper maintenance activities. 

Do you see any policy obstacles referred to SunHorizon technologies application, specifically related to the local/national regulations where the demo site is located and, more in general, at EU level?  

No specific policy obstacles have been identified regarding the application of SunHorizon technologies, but we will have to pay attention to the chimney and its maintenance at commissioning (common)while designing the installation/integration of these new technologies.

What is your motivation to participate in the project and which is your role?

BOOSTHEAT is very motivated to play a role in in these 2 demos, in order to demonstrate the use of its technology in Germany, as we can learn for the application of our system solutions in future German projects and make good reference for future German’s projects and demonstrate the benefits of using different renewable energy systems and covering the energy demand with RES. 

We decided to take part in the SunHorizon project to explore these opportunities with other companies located all around Europe, which makes this a unique opportunity on technological and professional level.

Which are the expected benefits your company aims to demonstrate in the SUNHORIZON project?

BOOSTHEAT aims at demonstrating that thermal CO2 heat pumps can cover the entire energy demand of a house, with the best energy efficiency as possible. 

Pictures from the demo sites

Berlin (Germany)

Nuremberg (Germany)