Jorat

The most sovereign energy is the energy beneath your feet.

Geothermal energy. Natural hydrogen for industry and mobility. Helium for medicine, research, and advanced technologies.Switzerland’s first exploration permit to target all three resources within a single programme.

STATUS

Exploration in progress

LOCATION

Canton of Vaud, Switzerland

PERMIT GRANTED

March 2026

TARGET RESOURCES

Natural Hydrogen, Helium & Geothermal

NEXT STEPS

Soil-Gas Survey (Autumn 2026)

13
municipalities involved
65
km²
permit area
3
-
5
km
potential target interval
3
resources tested by one dataset
2000
ppm
preliminary peak soil-gas H₂ reading in nearby areas.

Benefits for the region

If exploration confirms viable resources and the project proceeds, natural hydrogen, helium, and geothermal energy could each contribute in different ways to the region’s energy, economic and resource resilience.

LOCAL
ENERGY

Natural hydrogen, as a clean energy carrier, could fuel local mobility and industry.Geothermal heat could also supply locally produced renewable heating and electricity for the region.

REDUCED IMPORT
DEPENDENCE

Local natural hydrogen and helium could reduce reliance on imports and move Switzerland a step closer to energy sovereignty.

LOWER
EMISSIONS

Natural hydrogen could lower emissions in transport and industry where it’s used as a fuel.Local geothermal heat could directly replace fossil fuels used for heating, cutting CO₂ emissions.

LOCAL
VALUE

Future development could support local jobs, procurement and economic activity.

ongoing
Soil-gas survey underway across the permit area
Small teams take gas measurements at ground level, on foot, across the 13 municipalities of the permit. No large machinery, no traffic.

Project Timeline

Phase 1 only: surface exploration. Any further phase would depend on these results and on separate authorisations.
NOW (CURRENT EXPLORATION)
March 2026
Permit approved
The Canton of Vaud granted SGE the surface exploration permit (PRSU) for the Jorat area.
May – August 2026
Review of Existing Data and Feasibility Studies
Reviewing available geophysical and geological data including gravity, active seismic lines and aeromagnetic data. Feasibility studies to understand which geophysical methods can effectively detect the deep structures of interest.
September – November 2026
Soil-gas survey
In progress
Field measurements of hydrogen, helium, and other gases across the permit area to map fault-controlled gas pathways and identify accumulation zones.
October 2026 – August 2027
Magnetotelluric and passive seismic surveys
Subject to favourable feasibility results: deployment of listening instruments to image the deep subsurface, followed by processing and modelling.
August – December 2027
Integrated interpretation & reporting
Combining all datasets into an updated geological model, defining the hydrogen, helium and geothermal potential, and preparing the Phase 1 technical report.
Early 2028
Extended exploration permit request
If Phase 1 results are favourable, SGE will submit a request for an extended exploration permit to proceed to the next phase.
Exploration projects involve technical, environmental and regulatory steps. Timelines are indicative and may evolve based on results and decisions.

Surface research permit

Permit Area
Main municipalities in or near the permit area
The Objective:
Unlocking Jorat's potential for hydrogen, helium and geothermal energy
The project aims to assess the potential for locally sourced, low-carbon energy alongside other strategic subsurface resources. It embraces a multi-objective integrated exploration framework:
Natural hydrogen: Assessing evidence for potential hydrogen generation and accumulation
Helium: Assessing its potential occurrence alongside other deep gases
Geothermal: Assessing deep temperatures and geological conditions of interest for geothermal energy

A de-risking approach, built on three resources

The integrated programme allows the same geological framework to inform the assessment of several potential resources, while exploration progresses in stages to reduce uncertainty before further investment. Each phase is designed to limit environmental impact and cost, in line with Swiss environmental standards and in ongoing dialogue with local communities and authorities.

Why the Jorat region?

The Jorat area was selected for further exploration because several geological and geochemical observations point to the same broad subsurface area. These include a large regional magnetic anomaly, hydrogen measured in deep wells and soil-gas surveys, and regional temperatures of interest for geothermal energy. Hydrogen has already been measured in the region, at surface and in deep wells. The purpose of the current exploration phase is to define the geological system that hosts it (depth, extent and structure), and to establish whether the resources are present in volumes that could be produced and commercialised.

01
A long-recognised magnetic anomaly
Regional magnetic surveys have identified a large anomaly beneath the Jorat massif. The anomaly has been known since the 1930s from ground magnetic surveys and was later confirmed by regional aeromagnetic mapping. One possible interpretation is the presence of an ultramafic body at depth — mantle-derived rock that, under suitable conditions, can generate natural hydrogen through a reaction known as serpentinisation.
02
Hydrogen measured at surface and at depth
Hydrogen has been observed at several levels in and around the region. In deep hydrocarbon wells such as Treycovagnes-1 and Cuarny-1, H₂ concentrations of up to 48% have been detected in samples from various stratigraphic units. In a nearby permit area, soil-gas surveys measured hydrogen concentrations of up to 2,000 ppm.
03
Several potential resources in the same geological setting
Hydrogen is not the only resource being considered. The same deep geological setting may also be relevant for geothermal energy, with regional temperatures estimated at around 135–170°C at depths of 4–5 km.

The evidence

The current interpretation is based on several complementary observations:

Observation
Measurement
What it may indicate
Regional magnetic anomaly
Large positive anomaly beneath the Jorat massif
Consistent with the possible presence of a buried ultramafic body
Treycovagnes-1 and Cuarny-1 deep wells, regional
Concentrations of up to 48% H₂ detected in samples from various stratigraphic units
Evidence that hydrogen is present at depth in the wider region
Soil gas — nearby permit area
Up to 2,000 ppm
Confirmed hydrogen at surface in the same structural trend
Jorat soil gas — preliminary
Up to 900 ppm, including along mapped fault traces
Faults may provide pathways for hydrogen migration
Temperature — regional
Regional temperature estimates: 135–170°C at 4–5 km
Temperatures of interest for deep geothermal exploration

Taken together, these observations establish that the resources are present in the region. The current exploration programme is designed to map the geological system that hosts them and to assess whether they occur in volumes sufficient for commercial development.

Hydrogen and helium

Natural hydrogen

Unlike most hydrogen used today, which is produced industrially from hydrocarbons or through electrolysis, natural hydrogen (also referred to as geological or white hydrogen) occurs naturally in the subsurface. One of the mechanisms that can generate it is serpentinisation, a reaction between water and iron-rich rocks.

If a recoverable natural hydrogen accumulation were confirmed, its production would avoid the industrial hydrogen-manufacturing step. Its overall environmental footprint would nevertheless depend on how the resource is extracted, processed and transported. Natural hydrogen remains an emerging field of exploration in Europe and is being considered as a potential low-carbon energy source.

Helium

Helium is another naturally occurring resource being investigated alongside hydrogen. Commercial helium is recovered from underground accumulations and is used in applications including medical imaging, electronics and scientific research. In some geological settings, helium can occur together with natural hydrogen and accumulate within the same subsurface structures.

One programme, three resources

At Jorat, hydrogen, helium and geothermal potential are therefore being investigated within the same geological framework. The same geophysical and geological datasets can contribute to assessing all three resources, making the exploration programme more efficient while keeping each resource assessment distinct. At this stage, the objective is to determine whether these resources are present, how they are distributed and whether any accumulation could be technically and economically relevant.

1
1.008
H
hydrogen
May be generated underground through serpentinisation
2
4.003
He
Helium
Naturally occurring resource recovered from subsurface accumulations
Potential co-occurrence at depth

Our approach

Exploration activities are conducted in accordance with Swiss environmental standards and geothermal best practices, and are planned in coordination with cantonal authorities, the thirteen municipalities of the permit area, landowners and farmers. The methods used in this phase are non-invasive: soil-gas sampling is carried out on foot, and magnetotelluric and passive seismic instruments only record the natural signals of the Earth. Measures are taken to minimise temporary disturbance, protect sensitive areas and inform those concerned before any field work begins. Throughout the campaign, the project maintains an open dialogue with the authorities, communities and stakeholders concerned.

A proven approach, applied at a larger scale

Exploration builds progressively on existing geological and geophysical knowledge. Each phase is designed to reduce uncertainty before further investment is considered, with new data integrated into an increasingly detailed subsurface model.

Built on existing knowledge

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.

Sequenced to reduce uncertainty

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.

Surveyed across neighbouring permits

The Jorat permit area of 65 km² sits alongside SGE’s Eclépens and La Broye projects. Data acquired across Jorat, Eclépens and La Broye contribute to a broader regional understanding of the subsurface and can inform interpretation across neighbouring project areas.

Other SGE exploration permits in western Switzerland
La Broye (500 km²)
Eclépens (105 km²)
Jorat (65 km²)
Main municipalities in or near the permit areas

FAQs

Did you know?

Soil-gas readings
2000
ppm
Preliminary surveys nearby Jorat measured hydrogen at up to 2000 ppm, including along mapped fault traces.

Find out more about

Eclépens

Switzerland’s first deep geothermal cogeneration plant, designed to produce both renewable heat and electricity from the same well in the Vaud plain

Discover the project
La Broye

A 500 km² exploration permit across Vaud, Fribourg and Bern, and one of Europe’s largest geothermal exploration campaigns

Discover the project