
La Broye
Local, carbon-free energy. Around the clock.
For generations.
If the Broye region holds deep geothermal reservoirs, it holds a source of constant energy — produced here and consumed here.
This campaign is how we find out.
Active exploration
Cantons of Fribourg, Vaud & Bern, Switzerland
Regional geophysical survey
Geophysical modelling & target selection
Assess the region’s geothermal potential
Benefits for the region
If exploration confirms a viable geothermal resource and the project proceeds, geothermal energy could bring several benefits to the region.
A constant, controllable output around the clock, produced in Switzerland and independent of weather conditions.
EMISSIONS
Local, renewable heat helps reduce CO2 emissions.
Heat produced and consumed in the region, supplying district heating networks. A step towards energy sovereignty, with less reliance on imported fuels.
VALUE
Creates local jobs and supports regional economic growth.
Project Timeline
Surface research permit
Why is La Broye being explored?
Not every region is suitable for geothermal exploration. Identifying geological structures of interest requires a combination of geological evidence, existing subsurface knowledge and a clear understanding of the regional context.
GeoCogen La Broye brings these elements together to evaluate whether the region could host a viable geothermal resource. The current phase focuses on collecting and interpreting geological information to support evidence-based decisions about potential future exploration. The three factors below explain why La Broye was selected for this stage of the project.

If geological investigations confirm a suitable geothermal resource, it could contribute to the region’s future supply of renewable heat and, depending on the resource, potentially electricity. Such a resource could complement other renewable energy sources while supporting Switzerland’s energy transition.
The GeoCogen La Broye project aims to determine whether these conditions exist. The data collected during the exploration phase will provide the scientific basis for deciding whether further development should be considered.
The objective of the GeoCogen La Broye project is to improve our understanding of these geological structures. By combining new geophysical surveys with advanced subsurface modelling, we aim to better characterise the structure, properties and extent of potential geothermal reservoirs beneath the region. The methods used are non-invasive: no drilling is carried out at this stage.
At this stage, however, the project is focused on evaluating geological potential. The studies currently underway will help determine whether the conditions required for further exploration are present.

Rather than starting from scratch, GeoCogen La Broye builds upon this existing knowledge. New geophysical surveys will complement these datasets with high-resolution information, allowing scientists to refine geological models and reduce uncertainty about the deep subsurface.
By integrating historical data with modern acquisition techniques and advanced geophysical modelling, the project aims to develop the most comprehensive understanding possible of the region’s geothermal potential. This step-by-step approach provides a robust scientific basis for deciding whether additional exploration should be considered.
A proven approach, applied at a larger scale
Deep hydrothermal geothermal energy is not a new technology. Plants have been operating on the same principle for decades in the Paris Basin and for more than fifteen years near Munich, circulating naturally heated groundwater from permeable formations. GeoCogen La Broye applies that established approach in Switzerland, drawing on decades of subsurface expertise built up within Swiss Geo Energy.
Each phase starts from what is already known about the subsurface and adds to it. New data are integrated with the regional record as they come in, so every decision rests on evidence rather than assumption.
Where the sector generally investigates small, isolated areas, GeoCogen La Broye covers a permit area of more than 500 km², complemented by SGE’s Eclépens and Jorat projects. One wide survey builds a far more complete picture of the subsurface, improves the chances of identifying a viable reservoir, and means field operations pass through each community once rather than repeatedly.
Exploration is organised so that uncertainty is reduced before commitment increases. Drilling is only considered once the subsurface has been imaged, modelled and interpreted, and only if the results justify the next step.
Deep geothermal energy:
clean and sustainable
Geothermal energy is a renewable energy source that does not depend on seasonal variations, weather conditions or the day-night cycle. It is entirely in line with the energy strategies of the Confederation and the canton of Vaud.
Geothermal energy has a small environmental footprint throughout its value chain, and a geothermal power plant has a relatively small surface footprint since the energy valorisation occurs underground.
Our approach
Exploration activities are conducted in accordance with Swiss environmental standards and geothermal best practices, and are planned in coordination with federal and cantonal authorities, municipalities, landowners and farmers. Specific measures are implemented to minimise temporary disturbances, protect sensitive areas and ensure that local communities and other affected stakeholders are informed in advance of field operations. Throughout the campaign, the project maintains an open dialogue with the authorities, communities and stakeholders concerned.
FAQs
Une hotline est disponible 24 heures sur 24 et 7 jours sur 7 pendant toute la durée de la campagne, y compris la nuit lorsque les opérations sont en cours : 079 536 43 21.
Vous pouvez également nous écrire à l’adresse suivante : labroye@swissgeoenergy.com.
Le tracé de la campagne a été défini en fonction des besoins techniques du projet. Il permet de recueillir les données nécessaires pour améliorer la compréhension du sous-sol à l’échelle régionale.
La nuit, l’environnement est plus calme, ce qui permet d’améliorer la qualité des données acquises. Ces horaires permettent également de réduire l’impact des opérations sur la circulation.
Non. À ce stade, la campagne consiste uniquement à réaliser des mesures géophysiques depuis la surface. Aucun forage n’est prévu dans le cadre de ces opérations.
Les opérations sont réalisées dans le respect des normes suisses applicables. Les niveaux de vibration sont contrôlés et surveillés en temps réel par des spécialistes présents sur le terrain. Ils restent largement inférieurs aux seuils susceptibles d’endommager les bâtiments.
Oui. Les riverains situés à proximité du tracé de la campagne seront informés au moins deux semaines avant le passage des camions vibreurs.
Les camions vibreurs ne restent que quelques nuits dans une même localité. À l’échelle de l’ensemble de la zone, la campagne s’étend sur plusieurs semaines et progresse successivement d’un secteur à l’autre.
Did you know?
over 500 km²,
On the ground...







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