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Cluster énergie & bâtiment


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Outil de contrôle des performances énergétiques effectives par rapport à la planification

 Le projet de recherche appliquée PerEn vise à développer un outil qui permet la réduction du décalage constaté entre la performance énergétique calculée d'un bâtiment à l'état de projet et à la performance énergétique réelle mesurée pendant la phase d'exploitation. Il va se concrétiser dans: un nouveau mode organisationnel, des méthodes et outils simples et vulgarisés ainsi qu' un outil de suivi et d'évaluation de la continuité des objectifs tout au long du processus de production du bâti.


HES-SO//Fribourg HEIA-FR institut TRANSFORM, IMPLENIA, Projeco Environnement Sàrl, Lutz Architecte Sàrl, CSD Ingénieurs SA, Climate Services SA, E4Tech Software SA, Raiffeisen Sarine-Ouest


Modelling / optimisation of thermal storage (hot - cold) for SMEs

Heating and cooling storage is an essential element in building technology and also of current interest for many developments in the area of energy. The integration of heat storage capacity represents an environmental gain. It reduces CO2 emissions generated during power peaks. It reduces dependence on fossil fuels, a finite and increasingly expensive resource. It also makes it possible to decentralise power requirements and increase energy independence.
In addition to the technical feasibility of such solutions, their cost-effectiveness is a central criterion.

A rational design for thermal storage (hot - cold) is not currently available to businesses, especially SMEs (architects, engineering offices), largely because there is a lack of modelling tools adapted to their needs. So the main goal of this project is to develop a simplified tool for designing, modelling and optimising thermal storage for SMEs.


HES-SO//Fribourg HEIA-FR institut ENERGY, ECO-Logements SA, Cosseco SA, Energie Concept SA, EKZ contracting SA, Energil Sàrl, Tecnoservice Engineering SA.


Combined heat pump and solar photovoltaic system to maximise the use of renewable energy for heating

This project aims to develop an intelligent control system that will make it possible to combine a standard heat pump, with its own control system, and a photovoltaic (PV) system in order to meet the thermal needs of a building. The objective is to produce heating and hot water using primarily the electrical energy produced by the PV system, thus minimising the resale of electricity to the electricity distributor. The primary energy (heat from the ground or air) used by the heat pump and the converted solar energy are both CO2-neutral and can make a valuable contribution to meeting the environmental and economic challenges linked to the Swiss government’s 2050 strategy.


HES-SO//Fribourg HEIA-FR institut ENERGY, Groupe E Connect SA, Cosseco SA, Pronoó GmbH

Poster projet



Assure air quality in new or renovated energy efficient buildings

This project aims to assure air quality measured in individual energy efficient homes, new or refurbished, where particular attention is paid to having an airtight envelope combined with adequate air renewal. Professionally applied solutions for the construction and operation of buildings of this type together with recommendations for use will be addressed to the occupants based on the results of studying their exposure to radon and volatile organic compounds. Project partner MINERGIE(R) is committed to adapting its guidelines to satisfy its customers and enhance its quality label.


1. Partners and industrial sponsors
Partners - Agence MINERGIE(R) romande, bovet jeker architectes sàrl, ECO-logements, KASPAR architectes EPFZ-SIA, Laboratoire Labtox, Losinger-Marazzi SA, Lutz architectes Sàrl, Suissetec, Suissetec Fribourg
Sponsors - Fédération fribourgeoise des entrepreneurs, Hälg & Cie SA, Maintenance Mugny et Marquet SA

2. Scientific partners
HES-SO//Fribourg EIA-FR Institut TRANSFORM, FRISAM, Office fédéral de la santé publique

3. External experts

Poster projet




Predictive, self-learning heating control for rental properties and houses

EcoBITS covers a wide area of "clean tech" in which many of the region's business sectors are present. Its objective is to adapt the energy management system developed initially for large buildings to the needs of rental properties and houses. This predictive, self-learning system optimises energy consumption in buildings, ensuring the same, or better, user comfort.


HES-SO//Fribourg HEIA-FR instituts iSIS et ENERGY, Infoteam SA, EnergieBüro Grossenbacher, Saia-Burgess Control SA, Wago Contact SA, Commande SA, Automation 3000 SA, Tecnoservice Engineering SA, bütikofer de oliveira vernay sàrl, Softcom Technologies SA

Poster projet
Flyer EcoBITS

Smart Building

Predictive, self-learning energy management system for buildings

Smart Building covers a wide area of "clean tech" in which many of the region's business sectors are present. Its aim is to design the model and methods for developing a predictive, self-learning system that will optimise energy consumption in buildings, ensuring the same, or better, user comfort.
Businesses in the region will lead the way in building energy management and will be able to offer more attractive benefits.


HES-SO//Fribourg HEIA-FR instituts iSIS et ENERGY, Infoteam SA, EnergieBüro Grossenbacher, Saia-Burgess Control SA, Wago Contact SA, Commande SA, Automation 3000 SA, Tecnoservice Engineering SA, bütikofer de oliveira vernay sàrl


Advanced analysis and design of steel-frame structures

This project aims to promote knowledge transfer to the steel construction sector, particularly in the area of industrial hangars. The aim is to facilitate the application of more cost-effective advanced calculation methods that can be used by engineers on a daily basis.


HES-SO//Fribourg HEIA-FR institut iTEC, R. Morand & Fils SA, Sottas SA, Zwahlen & Mayr SA, Centre suisse de la Construction Métallique


Development of more cost-effective, environmentally-friendly facade elements using alternative concretes and integrated functions

The primary objective of this project is to enable business partners to use precast concrete structural elements (facade elements, floors) to  increase their market competitiveness in Fribourg, in Switzerland, and even at an international level, by improving the environmental performance of their constructions as evaluated by environmental regulations (Minergie, Minergie-P and Minergie-Eco). The optimisation of manufacturing processes using traditional concrete has gone about as far as it can go, so the project aims to propose new approaches, either in terms of component materials or construction elements, that can be directly implemented by industrial partners.

Specifically, the work of the project is to:

• Provide construction stakeholders (architects, engineers, masonry businesses, building materials manufacturers) with a catalogue of alternative concretes with their formulas, physical characteristics and ecological and economic performance.
• Identify areas of potential application for these concretes and develop alternative proposals or recommendations.
• Identify and test connection solutions for use in precast concrete façades and determine their ecological and economic performance.


HES-SO//Fribourg HEIA-FR institut iTEC, ECO-logements SA, Sijeff SA, JPF SA, Simonet&Chappuis Architectes

Flyer BASIC 


Heat exchangers for the renewable energy sector

RENHEX is building up a network of expertise that brings together specialists in the areas of materials, chemicals, energy and metallurgy from both academia and industry. This network focuses on the production of low maintenance, fully guaranteed heat exchangers designed for harsh environments (corrosive gas, water containing abrasive materials, residue build-up etc.). Standard, currently available exchangers do not meet these specifications. An actual example is dealt with to illustrate not only the need to recover waste heat from industrial smokestacks and from wastewater, but also the value of the established network.


HES-SO//Fribourg HEIA-FR institut ENERGY, Energie Concept SA, Transthermic AG, Constructeurs Métalliques Associés SA, Pavatex SA


Innovative mixed wood-concrete structures: design and LCA

The potential of timber-concrete structures is yet to be fully exploited, largely because of shortcomings in the methodology used to design with these materials. And while the life cycle analysis (LCA) of such types of structure is, by default, considered to be very good, the details are not well documented.

This project explores the use of more sophisticated methods for designing mixed timber-concrete structures by applying existing theoretical approaches and, through experiment, verifying the best ways to combine the advantages of both building materials. The study investigates the impact of applying these methods, comparing the LCA of mixed wood-concrete structures with that of conventional construction methods.


HES-SO//Fribourg HEIA-FR institut iTEC, Vial Charpentes SA, Ducret-Orges SA, Element AG, JPF Construction SA, Quantis


COCCUM, the envelope for the thermal and architectural renovation of buildings

The Coccum project offers a new technique for thermal remediation that is both adaptable and reproducible – and that also assures the airtightness of the building envelope and the construction’s architectural value. The prefabricated Coccum elements provide high performance insulation, making it possible to integrate technical elements and at the same time produce an ecologically sustainable end-result. The elements are highly cost-efficient because they can be applied rapidly on sites that are continuously occupied during installation.


HES-SO//Fribourg HEIA-FR institut TRANSFORM, Lutz Architectes Sàrl, Pavatex SA, Gutknecht Holzbau AG, Dena Energies, Isofloc AG

Passage du Cardinal 11
Annexe 2
CH-1700 Fribourg

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